author

judas79

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56CommentsTampa, Florida
I sell robotics and electronic parts online.
  • judas79 commented on TamilHagilan's instructable Laser Beam Microphone
    Laser Beam Microphone

    Iron Maiden, excellent. Is it possible to make an array of photoresistors, to help with the aiming? Will using a higher watt laser, effect the reflectivity, and the volume, seems both would increase?

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  • A human size meditation room like this, would be awesome. Very cool.

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  • These cubes are beautiful, and I want to hang one from the ceiling, as a decorative light. I am using the md cubo library and particularly like the "rain". I would like to flip the direction of the "rain drops" from going from the top to the base of the cube, as to have the proper orientation while hanging upside down. Can some please help rewrite the code? I assume its in he function:void rain()// Rain drops passing through the cube, top to bottom{ uint16_t delay = 100; PRINTS("\nRain"); C.clear(); timeStart = millis(); while (millis() - timeStart <= DEMO_RUNTIME) { uint8_t num_drops = random(100) % (C.size(MD_Cubo::YAXIS) - 2); C.fillPlane(VOX_OFF, MD_Cubo::XYPLANE, C.size(MD_Cubo::ZAXIS) - 1); for (uint8_t i = 0; i < num_drops; i++) { …

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    These cubes are beautiful, and I want to hang one from the ceiling, as a decorative light. I am using the md cubo library and particularly like the "rain". I would like to flip the direction of the "rain drops" from going from the top to the base of the cube, as to have the proper orientation while hanging upside down. Can some please help rewrite the code? I assume its in he function:void rain()// Rain drops passing through the cube, top to bottom{ uint16_t delay = 100; PRINTS("\nRain"); C.clear(); timeStart = millis(); while (millis() - timeStart <= DEMO_RUNTIME) { uint8_t num_drops = random(100) % (C.size(MD_Cubo::YAXIS) - 2); C.fillPlane(VOX_OFF, MD_Cubo::XYPLANE, C.size(MD_Cubo::ZAXIS) - 1); for (uint8_t i = 0; i < num_drops; i++) { uint8_t x = random(C.size(MD_Cubo::XAXIS)); uint8_t y = random(C.size(MD_Cubo::YAXIS)); C.setVoxel(VOX_ON, x, y, C.size(MD_Cubo::ZAXIS) - 1); } C.update(); C.animate(delay); // move all the Z planes down for (uint8_t i = 1; i < C.size(MD_Cubo::ZAXIS); i++) C.copyPlane(MD_Cubo::XYPLANE, i, i - 1); } return;}

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  • I thought of using two ultrasonic sensors, as you have done in this Instructable. Congradulations. I had a three pin Ultrasonic Sensor, and It took a while before a member here, showed me the correct code; how to make it function. Finally back to ultrasonic sensors and have 4 of them. I want to recreate what you have done in this instructable, but do no want to get caught up in learning how to code graphs in Processing, as to save time. I'm assuming you are using Processing to connect the Serial information from Arduino to make the graph. Can you post your Processing sketches? I'm new to Processing but have gotten the "Meter Library" to work and connect to the Arduino's serial output. This video, was a little low in volume, but your second one I could hear good...than…

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    I thought of using two ultrasonic sensors, as you have done in this Instructable. Congradulations. I had a three pin Ultrasonic Sensor, and It took a while before a member here, showed me the correct code; how to make it function. Finally back to ultrasonic sensors and have 4 of them. I want to recreate what you have done in this instructable, but do no want to get caught up in learning how to code graphs in Processing, as to save time. I'm assuming you are using Processing to connect the Serial information from Arduino to make the graph. Can you post your Processing sketches? I'm new to Processing but have gotten the "Meter Library" to work and connect to the Arduino's serial output. This video, was a little low in volume, but your second one I could hear good...thanks

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  • I guess I would try this as a last resort. Maybe charcoal filter also, as you mentioned at the beginning of the instructable. What type of bleach did you use? I assume it was not the cheap laundry bleach from the dollar store type.

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  • Really cool! Any plans on adding some ice and a robot to bring the drink over it to you?

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  • I liked your explanation of how the encoder works, thankyou. My question is... Why is "Laststate = digitalRead(CLK);" pin read, located in "setup" and your other variables wait until the loop, to do their first read?

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  • judas79 commented on lingib's instructable Dual Sensor Echo Locator

    Very cool project. Is there a particular reason you are triggering both modules, in the .pde, even though the "B" trigger on the module is blocked with a covering?

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  • This seems to be far superior than the instructable I followed, because of the range it gets. In the one I tried, a solid core insulated wire, aprroximately 16awg, was used, in a 2.2cm coil aproximately 3.5cm, in its coiled length. Is the wire in this instructable solid core and what is its gauge? I will find the exact type of wire while I wait for the 1Mohm resistor to arrive, in oreder to recreate the same results.

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  • It looked like Frankenstein when you first started making it and transformed into a U.N. giant degauser! Excellent.

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  • I was thinking of the same question as wannabemadsci; please post some pica from the SSTV. Also, what equipment did you have in the other box enclosure hanging from the balloon?

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  • judas79 commented on jfulop10's instructable Mosquito Killing Ovitrap

    I like the idea, but don't have "metal" screening. Is the reason, it has to be metal screening; to hold it in place, within the sock, or is there another reason? I ask, because all I have on hand is nylon screening, and would like to see if I can adapt that to a similar design.

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  • I just looked at the master and slave code side by side and they seem identical except for the "Master" names:const int ledPin = 8;const int buttonPin = 2; and, the slave names:const int led = 8;const int button = 2;Am I missing something? Can the same .INO be used on both HC-05 modules?

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  • After purchasing a Chinese BMP280 4 pin sensor, I had trouble with getting any response at all; all 0000's. I changed the Adafruit_BMP280.h from the standard library to the *.h file that has the "I2C ADDRESS/BITS/SETTINGS -----------------------------------------------------------------------*/ #define BMP280_ADDRESS (0x76) #define BMP280_CHIPID (0x58)" and all works perfectly now.

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  • I did not have luck with magnetic toner for a laser printer. It would bubble up, but was not fine enough, or perhaps had other non magnetic qualities added to it, so it wasn't near as good as ferrous oxide. No spikes and my magnet was an N52...

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  • judas79 commented on buddhaufo's instructable Soda Bottle Tetrapods

    Very cool looking. Do you do this to all for bottles? "Mark 1” inside along the first line and draw a line. Cut along this line with scissors carefully"

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  • If you download the software posted here it has the option for English after installation, at least it did on my win 7 and win 10 machines. If you downloaded the software else ware, like let say where you bought the module, it will not have the "English" option

    Can somebody post a link to a tutorial on how to use a 3x8 matrix to control this module or some similar sound module? It would be nice to be able to utilize more than 4 channels.

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  • Nice robot arm! I just finished a inexpensive 6DOF Chinese metal robot arm and would also appreciate if you could share your Arduino code with me. I used all MG-996R's except for a Futaba S3151 and a plastic horn for the claw; the other horns where metal. I've already ordered 2 17kg servos, for the shoulder and wrist, but need some code to test how good it functions as is. I may try springs to counter the strain on the shoulder and wrist, as you mentioned in your instructable.

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  • Nice robot arm. Did your servos survive the 8.4 volts?

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  • I got ahead of myself and finished the installation and connected to the internet, as your tutorials last step shows. I still haven't received my USB sound card for the mic and speaker output. I have never been able to get a sound out of my Raspberry Pi's 1/8 inch jack or HDMI, even using Wheezy, either, and am hopping the USB soundcard will solve that for me. Does anybody know if installing the soundcard, after the installation of all the AlexaPi and Jessie software ect., will work or be able to make work? Being still a novice, the only thing I had to dig up was the command to get my IP address off my Raspberry, and that was "hostname -I" Thanks for the lesson it was nice and detailed

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  • Can something be sprayed onto a plastic wrap skin, to help hold in the hydrogen gas? I'm trying to keep it light, but don't want the gas to leak out too quickly. Really cool project.

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  • I found this very helpful, as I have trouble implementing code without understanding what exactly it does and also being an amateur at this.

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  • judas79 commented on GhoustDoggy's instructable PWM

    What I was looking for! In the "PWM without a pot code"; Wouldn't the number just continue to rise by 1 endlessly, without limit, using analogWrite(ledPin, var++);? Could the PWM be used to control a voltage control oscillator, to sweep through the frequency's from 0-5volts?

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  • Would it be possible to use the output from a Theramin instead of the wave generator successfully?

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  • judas79 commented on barri_kid's instructable Radio Jammer

    If you are hearing voices while near your computer and its on....you may have a Trojan, like the old sub7, which allowed speech through the onboard speaker, remotely, among other things.

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  • I noticed, that some of the comment outs " // " some how moved a line when I copy/pasted it above....

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  • Cool project so I did a test variation to sync LED's on the Transmitter and receiver for blinking pendants. For the most part they sync up almost all the time when in close enough proximity. I'm going to put more matching LED routines on both the Arduinos'; the receiver and the transmitter, later when it is working in full. What I'm missing in the code, on the receiver side, is for it to continue blinking in sync. after the receiver and transmitter are out of range. I know there will be some drift and they will become more out of sync as time passes and that's ok. I need some help with the code and suggestions of how to accomplish this task. Here is what I have:// simple Tx on pin D12//Written By : Mohannad Rawashdeh//3:00pm , 13/6/2013//..................................#include &l…

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    Cool project so I did a test variation to sync LED's on the Transmitter and receiver for blinking pendants. For the most part they sync up almost all the time when in close enough proximity. I'm going to put more matching LED routines on both the Arduinos'; the receiver and the transmitter, later when it is working in full. What I'm missing in the code, on the receiver side, is for it to continue blinking in sync. after the receiver and transmitter are out of range. I know there will be some drift and they will become more out of sync as time passes and that's ok. I need some help with the code and suggestions of how to accomplish this task. Here is what I have:// simple Tx on pin D12//Written By : Mohannad Rawashdeh//3:00pm , 13/6/2013//..................................#include <VirtualWire.h>void setup(){Serial.begin(9600); //Make sure the serial monitor is activated//or the program will remain idleSerial.println("Device is ready");//Initialize the IO and ISRvw_set_ptt_inverted(true); // Required for DR3100vw_set_rx_pin(12); // setup pin 12 for dats reception from transmittervw_setup(4000);// Bits per secpinMode(13, OUTPUT); /* LED comes on when unit receives first signalwhich is "01" from transmitter, and turns off when it receives"00" from transmitter*/pinMode(5, OUTPUT);pinMode(6, OUTPUT);pinMode(7, OUTPUT);vw_rx_start();// Start thereceiver PLL running}void loop(){uint8_t buf[VW_MAX_MESSAGE_LEN];uint8_t buflen = VW_MAX_MESSAGE_LEN;if (vw_get_message(buf, &buflen)) // Non-blocking{if(buf[0]=='1'){digitalWrite(13,1);Serial.print("First Number =");Serial.println( buf[0]-'0' );digitalWrite(5,1); // Turn LEDs on for .5 of a seconddelay (500);digitalWrite(5,0);delay (500);digitalWrite(6,1);delay (500);digitalWrite(6,0);delay (500);digitalWrite(7,1);delay (500);digitalWrite(7,0);delay (500);digitalWrite(5,1); // Turn LEDs on for .5 of a seconddelay (200);digitalWrite(5,0);delay (200);digitalWrite(6,1);delay (200);digitalWrite(6,0);delay (200);digitalWrite(7,1);delay (200);digitalWrite(7,0);delay (200);Serial.println("");}if(buf[0]=='0'){digitalWrite(13,0);// delay(1000);Serial.print("Second Number =");Serial.println( buf[0]-'0' );Serial.println("");}}}

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  • Great project; I was wondering which kind of Thyristor you are using? I found 2 types of 400v ones even though I do not need that high of voltage; unidirectional and bidirectional. I'm going to order one and learn how it works while I wait for it to get here from China.

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