oscilloscope

I'm thinking about getting an oscilloscope (on ebay) because I've always wanted one (and I'll probably need them on upcoming projects. Plus I just got some birtthday money (yay, I'm 14 now!). anyways, I need help of what is considered a good oscilloscope. I don't want to buy one and then later find out it's a piece of crap.

Topic by guyfrom7up 11 years ago  |  last reply 16 days ago


Oscilloscope Features

I would like to buy an Oscilloscope but don't knowing what features are essential to have and what are not.  There is so many different way to buy one, 60Hz  100Hz  200Hz   400Hz. I see digital and analog scopes. 2 trace   4 trace among many other options. What would be the key things i would want to try and look for in a scope? 

Topic by WWC 6 years ago  |  last reply 6 years ago


ARDUINO OSCILLOSCOPE?

Hey there, I have been working on a recent project to build an Arduino Oscilloscope interfaced with a 4X4 keypad membrane with Nokia 5110 LCD display.I have successful individual code fragments/portions which 1)Generate waves interfaced with the keyboard  2)Display the same on the Nokia LCD 5110 i am using the Arduino Due and the 1st part of my code generates waves on DAC1 with the code as follows:- #include "Waveforms.h" #include #include //Set the desired duty cycle in percentage double dc,t,a,d; long d_milli,d_micro,a_milli,a_micro,m,n; int stage =0; int sample_delay1; LiquidCrystal lcd(A2, A3, A4, A5, A6, A7); float sample_delay; String num1,num2; int wave1; String wave_name; double duty_cycle,k; const byte ROWS = 4; //four rows const byte COLS = 4; //four columns //define the cymbols on the buttons of the keypads char hexaKeys[ROWS][COLS] = {   {'1','2','3','A'},   {'4','5','6','B'},   {'7','8','9','C'},   {'.','0','#','D'} }; byte rowPins[ROWS] = {23,25,27,29}; //connect to the row pinouts of the keypad byte colPins[COLS] = {31,33,35,37}; //connect to the column pinouts of the keypad int i = 0; int sample; //initialize an instance of class NewKeypad Keypad customKeypad = Keypad( makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS); boolean in_setup = true; void setup() {   Serial.begin(9600);   analogWriteResolution(12);  // set the analog output resolution to 12 bit (4096 levels)   analogReadResolution(12);   lcd.begin(20,4);   char key = customKeypad.getKey();   lcd.setCursor(0, 0);   lcd.print("choose wave: ");   lcd.setCursor(0, 1);   lcd.print("A=Sine");   lcd.setCursor(8, 1);   lcd.print("B=Triangular");   lcd.setCursor(0, 2);   lcd.print("C=Sawtooth");   lcd.setCursor(11, 2);   lcd.print("D=Square");   while( true)   {         char key = customKeypad.getKey();         if(stage == 0)         {               Serial.println("in stage 0");               if(key == 'A' )               {                 wave1 = 0;                 lcd.clear();                 lcd.setCursor(0,0);                 lcd.print(" Sine?      ");                 wave_name ="Sinusoidal";                 Serial.println(wave_name);               }               else if(key == 'B')               {                 wave1 = 1;                 lcd.clear();                 lcd.setCursor(0,0);                 lcd.print("Triangular?");                 wave_name ="Triangular";                 Serial.println(wave_name);               }               else if(key == 'C')               {                 wave1 = 2;                 lcd.clear();                 lcd.setCursor(0,0);                 lcd.print("Sawtooth?  ");                 wave_name ="Sawtooth";                 Serial.println(wave_name);               }               else if(key == 'D')               {                 wave1 = 3;                 lcd.clear();                 lcd.setCursor(0,0);                 lcd.print("Square?    ");                 wave_name ="Square";                 Serial.println(wave_name);                               }               else if(key == '#')               {                 stage++;                 //lcd.clear();                 lcd.setCursor(0,1);                 lcd.print("Frequency=");                 Serial.println("Frequency=");               }         }        else if(stage == 1)         {               if(key != NO_KEY &&(key=='1'||key=='2'||key=='3'||key=='4'||key=='5'||key=='6'||key=='7'||key=='8'||key=='9'||key=='0'))               {                 num1 = num1 + key;                 //int numLength = num1.length();                 //to adjust one whitespace for operator                 lcd.setCursor(10,1);                 lcd.print(num1);               }                             else if(key == '#')               {                     k = num1.toInt();                     Serial.print(k);                                                                                        int sample_delay_int = 1000000/(k*120);                           float sample_delay_float = 1000000/(k*120);                           float difference= sample_delay_float-sample_delay_int;                           sample_delay1 = sample_delay_int - 6;                           if(difference > 0.5)                           {                             sample_delay1++;                           }                                                                               Serial.println(sample_delay1);                           lcd.clear();                           lcd.print(wave_name);                           lcd.setCursor(0,1);                           lcd.print("Frequency=");                           lcd.print(num1);                           lcd.print(" Hz");                                         break;                                       }                   }                                                 }       } void loop()   {   analogWrite(DAC1, waveformsTable[wave1][i] );    i++;   if(i == maxSamplesNum)  // Reset the counter to repeat the wave     i = 0;   else delayMicroseconds(sample_delay1);                   } Next, I input these waves from DAC1 into analog input A0 to display on the LCD with code as below:- #include #include #include #define DISPLAY_WIDTH 84 #define DISPLAY_HEIGHT 48 #define ARDUINO_PRECISION 1023.0 Adafruit_PCD8544 display = Adafruit_PCD8544(8,9,10,12,11); //Analog Pins int channelAI = A0;      // probe #define DELAY_POTENTIMETER //disabled it I don't have it connected #ifdef DELAY_POTENTIMETER int delayAI = A1;       // delay potentiometer #endif float delayVariable = 0; float scale = 0; int xCounter = 0; int yPosition = 0; int readings[DISPLAY_WIDTH+1]; int counter = 0; unsigned long drawtime = 0; unsigned long lastdraw = 0; int frames = 0; void setup(void) {   display.begin();   display.setContrast(30);// you might have a slightly different display so it might not be the optimal value for you   display.clearDisplay(); } void loop() {    #ifdef DELAY_POTENTIMETER   delayVariable = analogRead(delayAI);   delayVariable = (delayVariable/100);   #endif   scale = (float)(DISPLAY_HEIGHT-1)/ARDUINO_PRECISION;     //record readings   for(xCounter = 0; xCounter <= DISPLAY_WIDTH; xCounter++)   {                                     yPosition = analogRead(channelAI);     readings[xCounter] = (yPosition*scale);     #ifdef DELAY_POTENTIMETER     delay (delayVariable);     #endif   }     display.clearDisplay();   //Draw Voltage Ref Lines   display.drawLine( 10, 0, 10, DISPLAY_HEIGHT-1, BLACK);   display.drawLine( 5, (DISPLAY_HEIGHT-1)-(.2 *ARDUINO_PRECISION * scale), 10, (DISPLAY_HEIGHT-1)-(.2 *ARDUINO_PRECISION * scale), BLACK);   display.drawLine( 0, (DISPLAY_HEIGHT-1)-(.4 *ARDUINO_PRECISION * scale), 10, (DISPLAY_HEIGHT-1)-(.4 *ARDUINO_PRECISION * scale), BLACK);   display.drawLine( 5, (DISPLAY_HEIGHT-1)-(.6 *ARDUINO_PRECISION * scale), 10, (DISPLAY_HEIGHT-1)-(.6 *ARDUINO_PRECISION * scale), BLACK);   display.drawLine( 0, (DISPLAY_HEIGHT-1)-(.8 *ARDUINO_PRECISION * scale), 10, (DISPLAY_HEIGHT-1)-(.8 *ARDUINO_PRECISION * scale), BLACK);   //display.drawLine( 5, (DISPLAY_HEIGHT-1)-(.84 *ARDUINO_PRECISION * scale), 10, (DISPLAY_HEIGHT-1)-(.84 *ARDUINO_PRECISION * scale), BLACK);     //Draw Voltage Ref Numbers   display.setCursor(0,((DISPLAY_HEIGHT-1)-(.2 *ARDUINO_PRECISION * scale))-3);   display.print((int)(5.0*0.2));   display.setCursor(0,((DISPLAY_HEIGHT-1)-(.4 *ARDUINO_PRECISION * scale))-3);   display.print((int)(5.0*0.4));   display.setCursor(0,((DISPLAY_HEIGHT-1)-(.6 *ARDUINO_PRECISION * scale))-3);   display.print((int)(5.0*0.6));   display.setCursor(0,((DISPLAY_HEIGHT-1)-(.8 *ARDUINO_PRECISION * scale))-3);   display.print((int)(5.0*0.8));     for(xCounter = 0; xCounter <= DISPLAY_WIDTH; xCounter++)   {     display.drawPixel(xCounter, (DISPLAY_HEIGHT-1)-readings[xCounter], BLACK);     if(xCounter>1){       display.drawLine(xCounter-1, (DISPLAY_HEIGHT-1)-readings[xCounter-1], xCounter, (DISPLAY_HEIGHT-1)-readings[xCounter], BLACK);     }   }   //Draw FPS   display.setCursor((DISPLAY_WIDTH-1)-11,0);   display.print(frames);     //Draw Voltage   display.setCursor(((DISPLAY_WIDTH-1)/2),0);   display.print(analogRead(channelAI)/ARDUINO_PRECISION*5.0);     display.display();     //Calculate FPS   drawtime = micros();   frames=1000000/*a second*//(drawtime-lastdraw);   lastdraw = drawtime; } Now the problem arises when i try doing the 2 things on d same arduino due board. I got perfect results when i used arduino due and arduino uno simultaneously but have not been able to generate waves on the LCD using the same board. Is it possible to do the same. Can some1 help me incorporate the 2 programs into 1..Thanxx

Question by ranjana_1 2 years ago  |  last reply 2 years ago


how make a oscilloscope?

Hi!! can anybody help me to make a oscilloscope, or know someone a link? :D

Question by mr.edwin74 7 years ago  |  last reply 7 years ago


Where is Girino-Fast-Arduino-Oscilloscope?

I have just joined and would like to work with my Grandson on the Girino-Fast-Arduino-Oscilloscope. But I have been unable to find a link to it.

Question by BobTurtle 4 years ago  |  last reply 4 years ago


What oscilloscope would you recommend for me? Answered

I have been interested in purchasing an oscilloscope for a while now, but I am not sure on how to decide based on my needs. Lately I have been interested in building radio circuits, but it is proving difficult because it is hard to troubleshoot when you can't see what ishhappening in the circuit beyond theory. I also feel that an oscilloscope would be a good tool to have in my electronics toolbox. Can anyone recommend a good oscilloscope that would suite my needs for under 1k $ Thanks Atrum

Question by atrumblood 5 years ago  |  last reply 5 years ago


How can i find pins of an unknown ic ? with or without an oscilloscope Answered

I've found a touchpad (model 810511-0901)  that i would like to use with my arduino , but i can't find the datasheet of the ic . i've googled for a guide that explain how to sniff the data pins but nope :(

Question by bengusx 6 years ago  |  last reply 6 years ago


Is it worth dropping $400 on a shiny new Rigol DS1054Z scope?

I will describe my situation: I am a hobbiest that likes to make cool projects, and plan to get into maybe RF analog stuff, (maybe start out with making a few FM bugs, reverse engineer a simple video transmitter kit, and a few other things.) as well get into arduino some more, AC analysis (learn about Xformers, power factor, maybe some math, etc.) and I so currently have an old 2ch. 30MHz analog oscilloscope that is a PITA to make real measurements with. Not only is it huge and takes up a lots of space, but also I'm not even sure it is in cal!) I will be transferring into UVA (or maybe VT) for EE, and gone this summer for a NASA internship at langley. (maybe I will be able to take it with me w/ a toolbox of some electronics stuff!)   The scope I am looking at (what appears to be what many subscribers seem to use, and/or claim is pretty good) is the Rigol DS1054Z. I only know how to use my $30 30MHz BKprecision scope I got on craigslist from the son of a father who was a TV repairman, and have NO experience with the use of the fancy-shmancy digital scope! What little I know is from watching EEVblog review of other scopes in the past. (I do know that they can be useful for 'capturing' waveforms, and can be set up to trigger on a pulse, maybe a certain digital codes, and that could come in handy for reverse engineering crap.)   https://www.youtube.com/watch?v=7v-tFYbc7h8   https://www.youtube.com/watch?v=W2qdtQkBKhc   https://www.youtube.com/watch?v=ETCOhzU1O5A   https://www.youtube.com/watch?v=-gStNYfqMXk     What sells it to me, being a complete newbie to electronics and digital scopes is that it has a nice big screen, the specs seem good (other certainly think, I have no intuition of what any of those things mean except the bandwidth, and maybe the sampling rate, 1GSa/s), 4 channels, intensity graded display, and it has loads of functions and stuff for me to grow into, and hacking it to make it think it is a DS1104Z is tempting, but I probably will not do that right away. Maybe once I feel what it offered is limiting.   The deal breakers is the $400 price, a bit steep for me (cheap for something this good, apparently but still.), the fear that by the time I really start using it, it will be obsolete and the same money can buy some quantum super duper ASIC tech whiz bang 3GHz 100Gsa/s 1GB segmented memory spectacular scope!   I am not really sure if it has a source, or signal generator either. Some sources claim that higher end ones do, or certain models anyway, and it seems like the official site say's no. http://www.rigolna.com/products/digital-oscilloscopes/ds1000Z/ds1054z/ That brings me to my next point. Should I also get a decent function generator?   

Question by -max- 4 years ago  |  last reply 3 years ago


Measuring the piezo transducer with oscilloscope

Hi, I am conecting a piezo disc as a microphone to pick up vibrations. .The problemm is when I measure the signal with osciloscope I am getting a messy and modified one with many noise  If I am measuring it with PC oscilloscope (threw the sound card mic input) I am gatting a clean desirable signal What is the true signal and what I am doing bad with the oscilloscope. Thanks! Anna

Topic by AnnaL3 3 years ago  |  last reply 3 years ago


Tektronix 475 Oscilloscope for sale

I have a Tektronix 475 oscilloscope for sale.  I had used it to create my Desulphator in an Altoids Tin instructable several years ago (see pictures).  The scope is a 200 MHZ bandwidth (very fast) analog 2-channel design and was a top of the line device at the time of its manufacture. This scope is in very good operating condition, has had an easy life, has very few blemishes and no scratches.  Please see my eBay auction for further details.  http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item;=221319636161

Topic by kmpres 5 years ago


How to use my sound card as an oscilloscope and signal generator?

How can I use my sound card as an oscilloscope, And how to make an oscilloscope probes as well as a signal generator probes "Labeled Wiring Diagram Would Help".

Question by h3rcul3z 8 years ago  |  last reply 8 years ago


is this oscilloscope kit any good?

Has anyone bought this oscilloscope kit? is it actually any good? http://www.amazon.co.uk/Analyse-measure-fault-find-and-debug/dp/B004RY7SI2/ref=sr_1_4?ie=UTF8&qid;=1322929591&sr;=8-4

Question by sholtob 7 years ago  |  last reply 6 years ago


Oscilloscope not focusing (Telequipment DM63)

I have a Telequipment DM63 CRT storage oscilloscope, and it has been working correctly for the past few months. Usually after 5-10 minutes to warm up, I have a sharp trace on a dark screen, but recently it has stopped focusing correctly. The screen now stays fully illuminated indefinately, and the dot is stuck as a 1/4 by 1/8 rectangle. The intensity and astig controls appear to be working correctly, but the focus does not appear to be doing anything. I've found a couple of old threads on other forums suggesting that the issue is likely to be a damaged resistor between the power supply and the focus control, or noise from the power supply itself. Thanks in advance for any ideas or suggestions.

Topic by The Skinnerz 7 years ago  |  last reply 7 years ago


Oscilloscope PSU whining noise?

My oscilloscope is a Philips PM3055. It's a CRT type with a modular internal design, one PCB is the PSU, one is the front panel, a few are TTL, etc. When I try to turn it on the screen is blank and the PSU makes a whining/whistling noise, and does not function. The whining persists regardless of connection to other boards and mains ground. (mains ground is normally not connected to the PSU, but there's a connector) I have found no bulging/leaking capacitors (though I have no way of testing capacitance) or other visible damage, except for cracked plastic on the front panel. But that's merely cosmetic. Replacing the PSU is not an option, since the scope is old and obsolete. Neither is buying a new scope. I am broke. All help greatly appreciated! If you help me fix it, I might just send you one of those fancy patches. I can only provide cellphone-camera quality pictures at the moment, and for that I am sorry. [Edit / update] I contacted Advance Product Services, And they sent me the complete service manual for the scope, free of charge. Those guys are awesome!

Question by Kirbsome! 7 years ago  |  last reply 7 years ago


how can i produce a fliping coin like movemnet to a lissajous pattern ( a circle) in oscilloscope?

Is it possible to make a circle like lissajous pattern to move in the oscilloscope screen in a circular fashion along with it, that circle like lissajous pattern should rotates in its own axis like a fliping coin.. how it is possible.. can i do this as a hobby project. Give sugeestions and help me make its circuit... please!!!!!!!!

Question by 9 years ago  |  last reply 9 years ago


Disassembling a CRT and getting the flyback

Hello! I'm getting a bit tired of playing with disposable cameras... there's only so much you can do with them. Well, I acquired a CRT, presumably from an oscilloscope, a couple of weeks ago and I want to get the flyback out of it (and figure out how to use it) so I can make a Jacob's ladder or Tesla coil. Does anyone have any ideas on how to proceed? Here are some pictures.

Topic by SirCheez 5 years ago  |  last reply 5 years ago


Designing probes for soundcard oscilloscope software

While searching for a cheaper alternative for an oscilloscope I found an answer from Lemonie about a software that uses a computer's soundcard. I found an Instructable for a soundcard probe but I am not sure that it works with the software. Does anyone has any suggestions or ideas for creating probe(s) that work(s) with the software?

Topic by blkhawk 7 years ago  |  last reply 7 years ago


need help with finding/buying an oscilloscope

I am about ready to start working on electronic projects on my own soon. i am in the middle of a physics class that is teaching me alot about wiring and such and i want to jump right on it after its over. the problem is i dont know what im looking for. i mean i just need one to do the cool electronic projects on here and other things. i dont know what types there are really and what specs i need to consider. i mean i dont want to get a $1000 oscilloscope and i only use 10% of its features. so can anyone help me. i reall would appreciate it. thanks. p.s. i saw something called a PC oscilloscope and wondering if anyone knows about this one specifically. it looks like something i could use. thanks

Topic by leader1 9 years ago  |  last reply 9 years ago


how do i make an analog clock with an arduino and an oscilloscope? Answered

I would like to make an analog clock that displays on an oscilloscope using an arduino. Is this possible? and i would like some help with the code.i will also have buttons to set the clock. the picture is what i would like to do with my arduino

Question by devicemodder 9 years ago  |  last reply 8 years ago


Looking for a Waveform Generator?

I'm doing a science fair project that requires a curve tracer, and after reading around online, I found that an oscilloscope can be used with a waveform generator as a curve tracer. I already have an oscilloscope and now I just need the function generator. Does anyone know of a decent but inexpensive waveform generator with a voltage output maximum of somewhere around 6-10 volts or more?

Question by danielemur 5 years ago  |  last reply 5 years ago


Polygraph re-purpose?

Okay, here was my idea: an old polygraph is basically an amplifier connected to a pen graph. pen graphs and amplifiers were used on the old oscillographs. Those were replaced with oscilloscopes, where the amplifier connects to the deflection coils on a CRT (or into an AD converter, then yadda yadda yadda.) My thought was, because people with old polygraphs in my experience want to dump them, while people with an oscilloscope of the same capabilities want a premium for them. One guy near where I live has an uncle who collected stuff, and he has an old Heathkit oscilloscope he'd like $75 for. Square tube, relatively massive body, very, very low bandwidth. He also wants about $50 for the old tube base done, with the round CRT display. And it won't show a trace when powered up. But he has a somewhat dinged up polygraph with chart recorder that is for about $10. Could I, perhaps with some modifications, turn that polygraph into what works as a low-bandwidth oscilloscope/oscillograph? The old tube based one would be of collection interest only, and being old and Heathkit, I doubt their accuracy. Is there any way the old polygraph could be turned into the world's least practical oscilloscope?

Topic by Nyanman 6 years ago  |  last reply 6 years ago


Electronic Toolkit

I do some work with the FIRST Robotics kids and it is amazing to see what they are doing.  Big problem though seems to be a general lack of electrical test equipment.  They don't really have the money to buy oscilloscopes, function generators, CAN and I2C analyzers.   So I got one of the M3 Discovery boards from STmicro and it is really cool.  It has four 5MS A/Ds on it plus a whole host of other features(CAN, I2C, Serial etc.). http://www.st.com/web/en/catalog/tools/PF254044 So it got me thinking. Why couldn't we turn one of these chips into an "All-In-One" electrical toolkit and keep it cheap($50-$60, BOM ~$20).  It would be fairly easy to turnkey. I threw together some simple specs, what do people think. 1) Will supply general use drivers so a user can use the app or write their own. 2) Oscilloscope   a. Two Channel     i. 2MHZ of Analog Bandwidth per channel     ii. 10MS/s per channel     iii. Trigger on rising edge, falling edge, on-command, run-stop actions     iv. Datalogging for extended time periods at up to 10hz per channel (data stored directly to console),  maybe higher rate will  just have to see 3) Serial – 2 Ports   a. Multi selectable protocol w/slew control     i. RS232, RS422, RS485 4) CANBus – 1 port 5) I2C – 1 port 6) SPI  - 1 port 7) 8 Discrete User Selectable 8) Function Generator   a. Two Channel      i. 1MS/s small signal change      ii. 250kS/s full range change      iii. 0-3.3VDC buffered output  9) PWM - 4 Channels

Topic by ase4542 5 years ago  |  last reply 4 years ago


Need help for Oscilloscope-like device

Hey, Im a noob to instructibles, but was wondering if anyone could tell me how I could get a TV or CRT, LCD, or OLED, to display a Sine wave, I want it to look like an oscilloscope but I dO NOT need a functioning scope, just want a display with the cool graphic for prop/filming purposes. It would be really helpful if it could just be a circuit which outputs an NTSC signal that is a sine wave, thanks in advance inventors of the world! Ultimately I would like to have a scope-like display that responds in appearance like a VU meter where you can see the sound as a voice waveform based on volume/pitch etc.

Topic by Aleator777 10 years ago  |  last reply 10 years ago


how can I make an oscilloscope with arduino as a processor that uses a tv as an output?

I coould use my computer as an output, but a TV would be better

Question by wii552 9 years ago  |  last reply 7 years ago


Is the Rigol DS1052e any good? Answered

Does anyone have any experience with this oscilloscope? Would you recommend it as an entry level scope?

Question by Ethanal 8 years ago  |  last reply 5 years ago


Help With CB Radio Alignment & Tuning

I'm wanting to tune and align my own CB Radio but have found that some expensive equipment is required. However, it looks as though it may now be possible using a computer and Oscilloscope and Signal Generator software downloaded from the net. My problem is I have never used such equipment let alone connect it to a computer then use it. I see that cheap Signal Generators etc are available on the net but am not sure which one would suit 27mhz.. Looking at making my own where possible but admit I'm fairly new to electronics etc. For a better idea of what I am wanting to do please check out this link http://www.cbtricks.com/radios/uniden/ax_144/graphics/uniden_ax_144_sm.pdf I'd appreciate any help or advice re this.

Topic by RockQ 4 years ago


trigger signal for video line

Hi, I'm having a project which need to send trigger signal to oscilloscope. i should make a circuit that will allow me to trigger oscilloscope on specific lines in a video signal. Please give me some idea so i can go ahead. thanks in advance

Topic by sofia14 4 years ago


Is it worth dropping $400 on a really nice oscilloscope (Rigol DS1054Z)?

I will describe my situation: I am a hobbiest that likes to make cool projects, and plan to get into maybe RF analog stuff, (maybe start out with making a few FM bugs, reverse engineer a simple video transmitter kit, and a few other things.) as well get into arduino some more, AC analysis (learn about Xformers, power factor, maybe some math, etc.) and I so currently have an old 2ch. 30MHz analog oscilloscope that is a PITA to make real measurements with. Not only is it huge and takes up a lots of space, but also I'm not even sure it is in cal!) I will be transferring into UVA (or maybe VT) for EE, and gone this summer for a NASA internship at langley. (maybe I will be able to take it with me w/ a toolbox of some electronics stuff!) The scope I am looking at (what appears to be what many subscribers seem to use, and/or claim is pretty good) is the Rigol DS1054Z. I only know how to use my $30 30MHz BKprecision scope I got on craigslist from the son of a father who was a TV repairman, and have NO experience with the use of the fancy-shmancy digital scope! What little I know is from watching EEVblog review of other scopes in the past. (I do know that they can be useful for 'capturing' waveforms, and can be set up to trigger on a pulse, maybe a certain digital codes, and that could come in handy for reverse engineering crap.) https://www.youtube.com/watch?v=7v-tFYbc7h8 https://www.youtube.com/watch?v=W2qdtQkBKhc https://www.youtube.com/watch?v=ETCOhzU1O5A https://www.youtube.com/watch?v=-gStNYfqMXk What sells it to me, being a complete newbie to electronics and digital scopes is that it has a nice big screen, the specs seem good (other certainly think, I have no intuition of what any of those things mean except the bandwidth, and maybe the sampling rate, 1GSa/s), 4 channels, intensity graded display, and it has loads of functions and stuff for me to grow into, and hacking it to make it think it is a DS1104Z is tempting, but I probably will not do that right away. Maybe once I feel what it offered is limiting. The deal breakers is the $400 price, a bit steep for me (cheap for something this good, apparently but still.), the fear that by the time I really start using it, it will be obsolete and the same money can buy some quantum super duper ASIC tech whiz bang 3GHz 100Gsa/s 1GB segmented memory spectacular scope! I am not really sure if it has a source, or signal generator either. Some sources claim that higher end ones do, or certain models anyway, and it seems like the official site say's no. http://www.rigolna.com/products/digital-oscilloscopes/ds1000Z/ds1054z/ That brings me to my next point. Should I also get a decent function generator? 

Question by -max- 4 years ago  |  last reply 4 years ago


Why is my published ible not appearing?

I published an Intructable several days ago but it's only visible via my personal page - not in the "Technology" or "Electronics" categories which I chose. (I realise this question has been asked here before but all the topics are years old.)Have I tripped the filters or has it fallen through the cracks?The title is "Oscilloscope in a Matchbox" but it's not found by a search for "Oscilloscope"..All the best,Peter

Question by Peter Balch 8 months ago  |  last reply 8 months ago


That didn't just happen, did my oscilloscope die!?!? How??? Repairable????

I went to my workbench today to discover that my BK Precision 30MHz analog scope has stopped working. Symptoms: ❶  Still shows a trace ❷  The trace does draw across the screen*  ❸  The horizontal time base seems to work ❹  10x horizontal magnification seems to work ❻  XY mode only draws in the X direction ❼  Waveforms do not show up, for either chA or chB ❽  Triggering seems to work (it causes the trace to draw more/less frequently. No vertical deflection)  ❾   Vertical controls for both channels have stopped working ❿   Dual trace shows only one trace ⓫   I have not been able to do anything to make the trace move up and down, vertical deflection is definitely shot. ⓬   * When changing the timebase, I noticed that the length of the trace horizontally gets shorter, and when a signal is present, or the vertical position for the appropriate channel is twiddled, it becomes the right length, within certain ranges. ⓭    When I was reaching for a powerstrip to turn off power to the lab the previous night, I heard a loud buzz, similar to that of the degaussing on a old computer monitor, but louder. no sparks or anything were visible as I recall. scared the crap outta-me, and I could not figure out what had happened. First thought was that maybe somewhere there was a live mains exposed somewhere that had shorted to ground or neutral. That was quickly dismissed since nothing was exposed like that, and also it would have popped the circuit breaker, and instead would have sounded like a firecracker. This sounded more like a small transformer failing. Also the same day, I have been messing with a tesla coil circuit (my beefed up slayer exciter) and the probes were sitting here by not connected picking up interference. They were in 10X mode, I do not remember the volts per division, however. I do recall a trace being shown on the display the previous day. With these symptoms, I think the issue has to do with the vertical control on the CRT, and perhaps another, separate issue with the horizontal time base control, or possibly triggering. I think I might do a teardown on it to see if there is anything obvious that has failed, such as a charred coil. Then I will need to figure out what had caused the issue. It is obviously something gone horribly, horribly wrong with vertical deflection or something of the like. I will have a look at the schematic and see what I can learn about the operation of the scope. I am glad I do have the user manual and schematics, so it should be straightforward, it is a nearly 100% BJT design. The scope was used and old, and lacked a lot of features, such as cursors and frequincy counters. Perhaps it is time for a digital upgrade anyway... http://www.amazon.com/gp/product/B00N222I6C/ref=s9_simh_gw_p504_d15_i1?pf_rd_m=ATVPDKIKX0DER&pf;_rd_s=desktop-1&pf;_rd_r=1VEC8M45MB2T9REXCR7N&pf;_rd_t=36701&pf;_rd_p=2079475242&pf;_rd_i=desktop

Question by -max- 4 years ago  |  last reply 4 years ago


Buying &quot;Untested&quot;

Is buying "Untested" equipment on ebay OK? Many auctions have very low prices for equipment that was bought in a large lot and has no testing done other than "powers on." Is there a good chance that these equipments are totally fine and functional? For example: Oscilloscopes, function generators, frequency counters, multimeters, etc.

Topic by guyfrom7up 10 years ago  |  last reply 10 years ago


Building a sound visualizer, modulating video with audio?

Hello! I want to build an (analog) sound visualizer. I've already read about building a simple oscilloscope (https://www.instructables.com/id/Music-Visualizer-oscilloscope/) but I want to make something more complex, if this is possible. I want to build a sound visualizer that makes psychedelic stuff from audio. Like the sound's frequency modulates the video's frequency, and the sound's volume (amplitude) controls the video's volume (like how much light is created). How could I build something like this? Just playing sound through a video screen won't work because there is a huge difference in wavelenght.  Do I need to build a vocoder (video=carrier, sound=modulator), like with an audio vocoder? I know alot of stuff about audio and audio electronics, however I don't know much about video and video electronics. All help is appreciated!

Question by buidlingstupidstuff 6 years ago  |  last reply 6 years ago


Eyewriter 2.0, Urban Survival Kit, Emergency Rescue Gun

The Eyewriter 2.0 Urban Survival Kit Emergency Rescue Gun 3D Paper Snowflake Magic Photo Cube Adjustable TV Oscilloscope Eggnog Recipe Schoolhouse Rocks Recycled Lumber Sidewalk Utensils for Kids Tricky Wine Bottle Puzzle Daily Gift Giveaways Featured Author: caitlinsdad Adult Johnny Jumper

Topic by randofo 8 years ago  |  last reply 7 years ago


Reading the max voltage of a low duty cycle PWM?

How do I measure the maximum voltage reached by a very low duty cycle PWM signal without having to alter the signal. The multimeter shows no reading or gives a very brief wrong reading and falls back to zero. I don't have an oscilloscope. Are there any other alternative set-ups to measure just the voltage in this case. Please suggest.

Question by raftor 3 years ago  |  last reply 3 years ago


Is it possible to homothetically dilate a signal?

Imagine I have a very short signal that I would like to observe, however the frequency is too high for simply viewing it on an oscilloscope. Is there any possible way to "dilate" it over time? Obviously, I am not talking anything digital, probably some crystal retranslation...  Somehow, I haven't managed to find anything using the most obvious way (googling), but, probably, I don't know how to.

Question by gruffalo child 5 years ago  |  last reply 5 years ago


(newsletter) Treadmill Desk, AA USB Charger, Sand Fire Garden

Double Capacity USB Charger Treadmill Desk Sand Fire Garden DIY USB Oscilloscope Riveted Maille DIY Lockring Pliers Rustic Hammock Chair Stylish Sofa Bed Drilling Glass Guides Instructables Robot Projects Exercise Lamps Instructables.com - 82 2nd St. - San Francisco, CA

Topic by fungus amungus 9 years ago  |  last reply 7 years ago


HMD, Can I use this? Answered

Hi all, I have a view finder from a camcorder of an unknown make. It has four wires 1 white and 3 grey. I was wondering if anyone had a way to test and find out which wire was which.  I dont have a oscilloscopebut any other ways are welcome. Thanks in advance for your time and effort.

Question by Modarius 9 years ago  |  last reply 9 years ago


i want to design a good workinng portable n mini oscilloscope o/p display on Lcd,pls guide n fed me the data any1 hav? Answered

M doing my project for final year. i want to make oscillscope which gives display on mini LCD. on net  i come to know it has specification-25mhz, 250MSa/s. using ADC & DAC pls co-ordinate me to get it done..

Question by vee_88 9 years ago  |  last reply 8 years ago


Why is code changing when hitting "Post" button in comment section of instructable?

When I hit the "post" button in a comment reply section, the code that I had entered as my answer changed. See this link in the comment section: https://www.instructables.com/id/Arduino-Multi-Channel-Oscilloscope-Poor-Mans-O/ While the code in the "Find this" sections remained the same, the code in the "change to" sections automatically changed to the same code as in "Find this". Any ideas on how to avoid this?

Question by Superbender 6 years ago  |  last reply 6 years ago


trigger retail door alarm

I know most people that think of retail exit door alarms want to avoid setting them off, but is there a way to purposely trigger them, especially from a distance? i am reasonably good with a soldering iron, ok using a ohm-meter and beginning on using oscilloscope. and i have lots of junk PC/PC parts and various other electronics around to strip for parts... (if that helps any). thank you for reading --rex

Topic by rexifelis 9 years ago  |  last reply 9 years ago


the OUTPUT voltage of an mp3 phone jack?

I want to build a vu meter using the lm3914 now it it voltage coming to it is equal to 1.7v all the led with work so i need to devise that on 10 to know the lowest voltage to, turn on the first led. that's the clear part now i don't have an oscilloscope in my home so i cant know the out put of my Samsung galaxy ace4 / i want to know the out put so i can build an amplifier wish amplified the signal to  around 2v

Question by TN_inventor 2 years ago  |  last reply 2 years ago


Hacking famous brand devices

Hi, I have spend a lot of time hacking some scanner CCD sensor from different brand of scanner on the last few weeks to build a touch screen. My idea was to make a database on the different PIN of the CCD of several brand of scanner to help people building their own. It's not always  that easy to play with an oscilloscope to reverse engineer those. But I was a bit hesitating on posting brand name like HP or CANON and explain how to crack the sensors. I wasn't sure if I could have some problem... Any ideas? Thanks

Topic by jeanotP1314 3 years ago  |  last reply 3 years ago


Best way to accurately measure capacitance w/ osciloscope?

I am sure there are many ways to measure capacitance w/ an oscilloscope, and one of the annoying things is that some capacitors have different capacitance at different voltages and test frequencies. My original idea was to use the RC time constant and a known resistor, but I think this is probably the least accurate way to do this. Would using a sine wave function generator and figuring out capacitive reactance (and capacitance) be the better method? OR what about measuring resonant frequency of a LC tank circuit? Or some other method I have not mentioned? What's the best?

Question by -max- 3 years ago  |  last reply 3 years ago


Half Inch CRT Monitror

I was tearing apart an old VHS camera and decided to rip the LCD out of the viewfinder. Much to my suprise I find a CRT monitor not a LCD! This screen is about 1/2 inch. It has a 5 pin connector that leads to the motherboard and a chip on the bottom that says A118121. Obviously two of the conections would be V+ and ground, but what about the other three? I would like to turn this into a composite or VGA compatible screen (maybe even a crazy tiny oscilloscope) but I need some help. Any suggestions or leads would be greatly appreciated.

Topic by gimmelotsarobots 10 years ago  |  last reply 2 years ago


The sound of a bad penny - Finding counterfeit coins by sound

Acoustic method could quickly catch counterfeit coins.You might assume that counterfeiters only bother with high-value bank notes, but there is a chance that some of the coins jangling around in your pocket right now are fake. If Mototsugu Suzuki gets his way, it may be that jangling that gives them away.Suzuki, a researcher at the Tokyo Metropolitan Police Department's Criminal Investigation Laboratory in Japan, has developed a way of examining coins based on the sound they make.In Suzuki's method, coins slide down a slope and then fall onto a brass block. The sound they make on impact is relayed via a microphone to a computer.Although the human ear cannot usually tell the difference between real and fake, a computer can. Genuine 500-yen coins showed four distinctive peaks of natural resonance frequencies in the 5-20 kilohertz range. This was not the case for fakes; some fakes produced only three peaks, while others showed four but at different frequencies to genuine coins.In addition to helping detect counterfeits, the sound data could be used to build up a database of fake coins, suggests Suzuki. This might help law enforcement officers to prove how many coins one counterfeit operation is responsible for. This would make for an awesome Instructable! Start with these two Instructables and get dropping pennies! https://www.instructables.com/id/Build-a-dsPIC-Oscilloscope-and-Spectrum-Analyzer-/https://www.instructables.com/id/Low-speed-AVR-oscilloscope/

Topic by ewilhelm 11 years ago  |  last reply 9 years ago


What is Kelseymh up to?

CELEBRATIONS have just finished at the Brookhaven National Laboratory in Upton, New York, for the 50th anniversary of a milestone that had nothing to do with basic physics research. In October 1958, nuclear physicist William Higinbotham created one of the world's first video games, called Tennis for Two.Officially, his goal was to liven up displays at the lab's annual visitors' day, and in that he succeeded. Hundreds of people lined up to bat a glowing spot back and forth across the video screen of a common or garden laboratory oscilloscope.Unofficially, Feedback suspects he was really just goofing off on a slow day, or waiting around with nothing to do when the lab's particle accelerator was broken, being maintained or otherwise failing to deliver the goods. Higinbotham himself said the idea came to him while reading the manual for an early computer which could plot the course of a missile or a bouncing ball on an oscilloscope screen. He then designed suitable circuits and control boxes - Stone Age versions of today's joysticks - so that two players could bat an electronic ball to each other across the screen.The game was adapted for a larger screen, but eventually forgotten until 1982, when Creative Computing magazine heard about it and thought it might be the first video game. With the invention far enough behind for him not to worry about accounting for time wasted on the government payroll, Higinbotham claimed credit for Tennis for Two.Such primitive video games are old hat now, but hundreds of physicists including our own Kelseymh are still waiting for the completion of repairs to the Large Hadron Collider at CERN. What might they be inventing this time, while sitting around twiddling their thumbs?New Scientist Article.Tennis For Two Simulator (untried by your correspondent)

Topic by Kiteman 10 years ago  |  last reply 10 years ago


Is it possible to generate and display waves using the same arduino due board in real time???

OK!So I intend to design an Arduino Waveform Generator interfaced with the Nokia LCD 5110 with Keypad support.I have successfully incorporated the Keypad interfacing part but have stumbled upon waveform display on the Lcd. My program generates waves on DAC1 which i then give as input on the Analog(A0) pin of Arduino Due just like an oscilloscope takes an input externally.i tried merging it with another program which takes an analog input from the function generator and displays it on the LCD.More importantly,the programs work fine individually! So,is it possible to do this on the same board????Where could i possible be going wrong? Reply asap !!

Question by Lakshya1503 2 years ago  |  last reply 2 years ago


Half bridge in "A reliable plasma speaker doesn't work"?

Hi! I am a  student and I just started to make my first half-bridge plasma speaker, and I used the schemetic in https://www.instructables.com/id/A-reliable-plasma-speaker/ However, after I finished, it didn't work. I used an oscilloscope and I found the VGS of high side MOSFET was between -3 and -6, and the low side was between 12 and 0. Then I accidentally got it work, but the MOSFETs were very hot, and then they exploded. After I change the MOSFETS, it had the same problem as before again. But if I short the capacitors, the wave form for both the high and the low were correct. can anybody explain why? Thanks.

Question by carldong 6 years ago  |  last reply 6 years ago


Output from flyback transformer question?

Hi! I scrounged and old crt flyback and I have set up a small transistor-driven oscillator to put power into the primary. It works too, but I don't know if the output is AC or DC. I think it may have a rectifier in it, but I'm not sure. Is there an easy test to determine whether it is AC or DC? I'm planning to use it for a tesla coil, but I want to know the output wave form first. Some sort of pulsed DC would as be acceptable for my uses as well.  Does anyone know what I can do to determine the output wave?  Thanks! (PS: I don't have an oscilloscope)

Question by transistorguy 8 years ago  |  last reply 8 years ago


Looking for a tutor to teach me cool electronics tech stuff

Hi All,I am new to instructables and want a tutor to teach me how to build/make them. I have a computer science and engineering degree and have done soldering and know how to use an oscilloscope and voltage meter, test for continuity, bread board etc... but it has been a while. I also know how to create circuits and use common electrical engineering equations i=v*r etc... I just want to get a tutor to kind of refresh me a little bit so I can make these cool projects! Let me know how much you charge etc... If you need to learn programming or web development perhaps we can do a trade etc...

Topic by wgheath 10 years ago  |  last reply 10 years ago