Search for FTDI in Topics


Help! Did I buy the wrong FTDI cable?

So I just ordered this cable https://www.sparkfun.com/products/12977 to use with this Arduino board https://www.sparkfun.com/products/11113 and I think it may be the wrong cord because it says it's specifically for Raspberry Pi and something about resetting the Arduino won't work. So my question is, am I right for thinking that this is the wrong cable, or is there a way to make this work?

Topic by njaber    |  last reply


Can UART or FTDI serial work with communication in only one direction? Answered

Can UART or FTDI serial work with communication in only one direction? or no? Or is there no universal protocol (as in UART only defines the type of connection, not what data is sent though it)  I am building a quadcopter and was thinking of using one of the 2 audio channels to send serial data down one of the spare channels, and the other channel is just connected to a microphone to 'listen' to the noise of the props. I have 2 major concerns with this method: Will the frequency response and bandwidth of the audio channels be high enough to carry a 115200 bauds signal, or at the very least a 9200 baud signal? and the original question; do I need a 2-way connection for information from the UBLOX GPS or multiwii output? If yes, then i guess the only way to get telemetry is to get one of those 900MHz transmitters, yet another board that I will have to deal with.

Question by -max-    |  last reply


Arduino Lilypad mp3 program using Arduino uno?

I have a arduino lilypad mp3 from sparkfun. I have bought a TTL UART USB programmer instead 5v FTDI breakout. It didn't work out. can we use Arduino uno as a bootloader ? 

Question by DaksithaW    |  last reply


Getting my comp to see my arduino uno clone ? The same ol windows route shown everywhere aint werkin'!!?

XP pro -sp3 -  ...I've tried installing the official USB2.0 driver, I've  tried the Virtual com port and the FTDI  drivers from the official sites...NOTHIN'!! I keep getting FOUND NEW HARDWARE -USB2.0-SERIAL...I go through all the steps found everywhere on how to "normally" get the comp and UNO to show up in sys' properties and hardware profiles etc etc....problem is I dont get any of the results nor devices these how-tos are showing. I know my way around a comp and windows...I'm just not getting past the NEW HARDWARE USB2.0  issue..let alone even seeing UNO as a device. The virtual port drivers dont do anything at all...no more ports show up, no option to create one.... I've installed the arduino drivers incl. USB and the UNO drivers...no love either I've uninstalled and installed in the root dir. ..no luck.. I even changed the ATmega from the 8A it came with to a ATm328 w/ bootloader and blink sketch already installed on  my Arduino as well. ANYONE have this issue that has found a solution?.... other than throwing my comp out the window and using the UNOs as fancy paper weights?

Question by schel    |  last reply


FTDI VCOM port USB2.0 my head meeting the wall

OK  for real this has been going on for days n' days. I cant get my windows xp pro sp3   - to see any attached device other than the USB2.0-SERIAL  it sees when I hook up my UNO clone-ATMega 328 w/ arduino bootloader already "factory "installed   - Using the USB,  I keep getting  NEW DEVICE USB2.0-SERIAL , and YES, I've followed ALL+ the step by steps out there for doing this...it's just I dont get an UNO nor anything but the USB2.0 message. The FTDI  bit and the virtual com port did nothing...er capital N-othing. I uninstalled -reinstalled tried different USB ports. I just want to play with my UNO!!!   anyone?

Question by schel  


Arduino resets periodically while being powered via an external power supply. Answered

I am using an 5V Arduino Mini (https://www.sparkfun.com/products/11113). While the Arduino is plugged into the 5v USB power coming from my computer it runs as expected (the lights flash in the right order and with the right timing, it accepts code etc.), but when it is powered through a regulated power supply it will turn on for a few seconds, then restart, run for a few more seconds, restart and repeat this indefinitely. I am programming it via an FTDI programmer (https://www.sparkfun.com/products/9716), and using two Polymer Lithium Ion Batteries (https://www.sparkfun.com/products/8483) wired in series to get it up to the necessary voltage. I have tried disabling auto reset via bridging 120 ohms equivalent resistance between RST and VCC and connecting a 10 micro-farad capacitor to RST and GND, but that did not solve the problem. I am fairly certain there are no problems with the code, because it runs perfectly when plugged into the computer, and I get the problem when running any code. If you need clarification or have any questions just ask. Thanks.

Question by GenAap    |  last reply


How would I go about programming an Arduino Pro Mini, using an Arduino Uno without its ATMega328 removed?

I have had some thoughts of getting an OSEPP Pro Mini, but I cannot find FTDI cables at Fry's. I need a program like the example "ArduinoISP" but for FTDI devices rather than ICSP devices.

Question by VirtualBoxer    |  last reply


What USB to Serial/FTDI cable/device should i buy?

I have been given a budget of 100$ for a project i'm building. for this project(which i'll probably make an instructable about) i'm going to be using a couple of Atmega328's in an arduino'ish configuration. my problem is that i'm unsure about what i should use to program them with. i need the programmer to be somewhat portable as i'll be using it in many upcoming projects. i also read something about the way the programmer resets the atmega328 should be different or something. should i buy an FTDI-cable or a FTDI basic breakout?

Question by solidacid    |  last reply


How to upload a sketch to a barebones arduino? Answered

Hey friends! After seeing a few instructables on making a barebones arduino i decided to make one. But there is a problem. I cannot find and FTDI serial to USB cable around. Also i read that a duemilanove can be used to upload the sketch. I have an UNO. Can it be used to upload sketch without taking off the ic because i think that i will be damaged while snapping off. Plz help.

Question by DELETED_Snehil1101    |  last reply


Hi3516 Access Root Error

First, I apologize for my english. I have a camera module with hi3516 SoC and have to access to hi3516 as root. But I couldn't that. If I begin to explain from start. I had an IPC, extracted it and now I have 3 modules (camera module, ir cut module and power / api module). I found 3 holes on camera module, these are GND, Rx and Tx. I soldered them with 3 female jumper cables and connect to ftdi module. I used micro USB to USB for ftdi-pc connection. Powered up camera module with 12V. In while, I download a program, what name is coolterm, to my pc. I opened coolterm and set baud rate to 115200 (hi3516 standard). Camera module booted up. I pressed a button when I see "Hit any key to stop autoboot: 1" text. Until here I followed an article and everything is fine. But that article says "You have to press enter after to type "root" to gain shell access" and I can't access shell when type "root". I got an error like "Unknown command 'root' - try 'help'". Hi3516 has embedded linux os. Article Link: https://felipe.astroza.cl/hacking-hi3518-based-ip-camera/ Any ideas to help me?

Topic by Anıl Enis  


Ultrasonic sensor controled directly from arduino?

I'm on a time crunch for a project, and I want to have distance sensing.  Unfortunatealy, i dont have enough time to get stuff shipped, nor the budget to use radioshack.  I was wondering if I can use a single pieze transducer without premade circuitry, and control it from an arduino.  I have some transistors, some common ICs (386, 555, etc), and basic passive components, plus two arduino UNOs (one with a broken FTDI adapter) can it be done? I don't need an  exact, continuous, or scaling measurment, just one that gives me an idea of the distance/presence of an object. 

Question by jduffy54    |  last reply


Arduino Mega 2560 timeout? Answered

I have tried uploading the simple "Blink" sketch onto a 5v Mega Pro from Spakrfun using their 5v FTDI programmer. Despite my best efforts I have kept getting this error... Binary sketch size: 1,632 bytes (of a 258,048 byte maximum) avrdude: stk500v2_ReceiveMessage(): timeout avrdude: stk500v2_ReceiveMessage(): timeout avrdude: stk500v2_ReceiveMessage(): timeout avrdude: stk500v2_ReceiveMessage(): timeout avrdude: stk500v2_ReceiveMessage(): timeout avrdude: stk500v2_ReceiveMessage(): timeout avrdude: stk500v2_getsync(): timeout communicating with programmer I have know I am using the correct COM port and I have the right board selected. I have tried to re-install the driver but to no avail. Nothing I have found online has worked.

Question by GenAap    |  last reply


Help making a USBasp with atmega 328P?

I recently got hold of a couple spare arduinos wich all had their FTDI chip burned out (not on purpouse of course) by students. The Atmega 328p chips still work though, and I was wondering if it was possible to make a USBasp with such a chip (the only schematic I saw used an atmega 8 or atmega 88 , schematic below), and if it is, is it the same schematic as below? Also, what program would it need to work? ( I have a working arduino I can use to program the chip first, then put it in the circuit) PS: yes I know I could use an arduino uno board and just switch out the chips when I need to re-program them, but that's not the point.

Question by didgitalpunk    |  last reply


avrdude: stk500_getsync(): not in sync: resp=0x00 error on Arduino? Answered

I am trying to load some code onto an Arduino Uno. So far I have tried checking to board to make sure it is is right one, unplugging and re-plugging, checking to be sure it's the right COM port (3 in my case), Pressing the restart button before, after, and during the uploading process, updating the FTDI drivers, re-installing the drivers, and re-installing the most recent Arduino software. I have tried pretty much everything I could find on Google when I googled the error. When I try to install the little orange L button blinks as well as the RX led. The green led is on, and resetting makes the L led blink some more. HELP!

Question by GenAap    |  last reply


Can some one help me identify this board plz

Hey,       I built an arduino from  the instructions on your site at    https://www.instructables.com/id/Build-Your-Own-Arduino/ then I face problems in getting a TTL-232R 3.3V USB – TTL Level Serial Cable as i am from India (Shipping charges). I began searching for alternatives for the cable. On my search i found a board similar to the arduino it has a ATMEGA8 micro controller chip. i have  uploaded the images. It has a FTDI chip (FT232BL) which as far as i know used in the cable. Let me know if i can use this chip as an alternative for the cable or is this by itself an arduino. if so please tell me where i could get the driver for this.                                     Ps the board has  16 pin for output if u can see properly

Topic by Sid91    |  last reply


CH340G and Standalone UNO R3 Got ERROR "avrdude.exe: stk500_getsync(): not in sync: resp=0x00?"

I bough the CH340G USB-TTL with 6 pin (GND, CTS, VCC, TX, RX, DTR). The CH340 driver already installed, the arduino bootloader also already burn to ATmega328P-PU. When upload the sketch using FTDI or PL2303 or ATmega16U2 is okey and no error found. But if Ia using CH340 and connecteed below pin: Arduino VCC ==> VCC CH340 Arduino GND ==> GND CH340 Arduino RX ==> TX CH340 Arduino TX ==> RX CH340 Arduino RESET ==> DTR CH340 The error always appear as "avrdude.exe: stk500_getsync(): not in sync: resp=0x00?" event the speed on the port setting already change at 9600; 19200 or 115200. Iam also trying with IDE 1.6.0, 1.0.5 and 022 the error message are same. May be someone can help me please?

Question by wachid_elektronik    |  last reply


Help Getting Started With Arduino

I just reformatted my computer recently, and when I reinstalled the Arduino programming software and FTDI drivers, it, simply put, doesn't work. Everything installed okay, and my computer recognizes my Arduino (its an Arduino Decemelia with an ATMEGA168, and I set the software to this under the tools/board menu), but when I try to upload a program, it says the following:"avrdude: stk500_getsync(): not in sync: resp=0x00avrdude: stk500_disable(): protocol error, expect=0x14, resp=0x51"I know that this board has a bootloader because the pin 13 LED flashes when I turn it on, or when I press the reset button.I also know that this board does, in fact, work, because it worked before I reformatted my computer. I did, however, have earlier versions of the drivers and programming software installed.Please help me, thank you-Xellers

Question by Xellers    |  last reply


Help and idiot to control LEDs via USB

I have what's a common question, however the usual answers I see relate to Arduino or some other all-in-one package which I really want to avoid. It's been 4-5 years since I did anything like this and I've pretty much reverted to an amateur again! My aim is to build the simplest circuit to control anywhere from 8 to 64 LEDs via USB within Windows and Linux using C or assembly. I'm not adverse to doing some PIC work but I no longer own any of the kit so would need to pick up the programmer again... if I could avoid doing this it would be great but I don't know if it's feasible. Should I be looking at FTDI chips or am I barking up the wrong tree? Is there a basic instructable that I've overlooked that might point me in the right direction?

Topic by Auraomega    |  last reply


What hardware can I use to program an AVR?

I'm just getting into microcontrollers and I'm getting an atmega328 to practice with, and probably make an arduino out of. I'm a bit confused about what I need to turn the usb from computer into something it will understand. I was confused about if I need an ftdi cable, but I think they are only used if you are using a bootloader? So I think I need a usb to ttl converter and I've found a couple cheap ones on ebay and am wondering if they will work. http://www.ebay.com/itm/NEW-USB-TTL-Converter-Module-buildin-in-CP2102-/180824855916?pt=LH_DefaultDomain_0&hash;=item2a1a00556c#ht_2026wt_958 This one I'm pretty sure will work but I think I would need to convert it to six pins for the atmega: http://www.ebay.com/itm/USBASP-USBISP-AVR-Programmer-ATMEL-ATMEGA8-ATMEGA128-ATMEGA168-New-/170787590104?pt=LH_DefaultDomain_0&hash;=item27c3bbcfd8#ht_2946wt_958 Sorry for such a beginner question I'm just getting started!

Question by sk8aseth    |  last reply


Computer not recognizing arduino mega?l7805cv

Suddenly today, my computer quit recognizing my arduino mega. I have a circuit built using an L7805cv voltage regulator to power the board, while I plugged it in with usb to update the program. I have done this previously without issue, but I'm not sure if maybe having the arduino powered by this power supply and plugging it in with usb caused issues. My desktop and laptop are both running Windows 8.1, and both recognize my Uno, however neither recognize the mega. For the uno, windows beeps signifying that a USB device was plugged in, however that doesnt happen for the mega. Also, on my laptop, the mega shows up in Device manager as an Other device with a yellow exclamation, but does not show up at all in device manager on my desktop. What steps can I take? Edit: I was able to use an arduino nano as an FTDI, simply connecting the power, ground, reset, tx and rx pins between the nano and mega, and I could load sketches and view the serial monitor fine. SO is there an issue with the usb port on the mega?

Question by DELETED_MakiY2    |  last reply


Atmega32u4 USB support?

I have made a breakout board for a 32u4. I have boot loaded to it using a uno as ISP and a modified Leonardo boards.txt file (I am using a 8MHz ceramic oscillator). The boot loading works and I can upload sketchs to it using the ISP. Here is the datesheet of atmega32u4 If I try to upload to the chip through a micro USB, I have to reset the chip manually and then I get the following output.      Programmer Type : butterfly      Description     : Atmel AppNote AVR109 Boot Loader Connecting to programmer: .avrdude: butterfly_recv(): programmer is not   responding avrdude: butterfly_recv(): programmer is not responding avrdude: butterfly_recv(): programmer is not responding avrdude: butterfly_recv(): programmer is not responding avrdude: butterfly_recv(): programmer is not responding avrdude: butterfly_recv(): programmer is not responding Found programmer: Id = ""; type = Software Version = �.p; Hardware Version = . I have tried changing the USB cable. Has anyone else had any similar problems? Also why do I manually have to reset the chip. I would of thought the chip does this with no DTR output from an FTDI. Thanks for any help

Question by DELETED_MakiY2    |  last reply


peculiar issue with arduino clones; thoughts?

So a little while back, I bought about 10 arduino nano clones. I'd used the nanos before, and really like the form factor, so i got some off of ebay. they worked great, and you'd know no difference in performance compared to other boards, these new ones seemed to boot faster even. unlike most, the ones i got dont use an FTDI chip, but rather a chip labeled as "CH340G". these boards were working perfectly until i was trying to test some code that was very close to the maximum size you can fit in an atmega328. it was 30,000 bytes, and mostly because of the included libraries. when i hit upload, it compiled fine, but once it got to the "uploading" phase nothing happened on the arduino board and after a while it threw an error claiming a response of 0x00, if memory serves. it didnt seem like the atmega was resetting, so i probed it with my oscilloscope, but it certainly was resetting. i thought maybe the capacitor on the reset line had issues, so i replaced it to no avail. everything seems fine in windows and i can still talk to the program previously on the chip via the serial terminal. the only way i can seem to upload code now is via the icsp header. so im wondering if anyone knows what is going on here, or how i can fix the issue?

Question by zack247    |  last reply


HOW TO PROGRAMMING ATMEGA8515 USING AVRSTUDIO 4.18 AND AVRISP MKII CLONE?

I'm very new world microcontroller. I am very interested with microcontroller because I thought, I'll be able to do something big with a very small and affordable prices. I had a problem with my knowledge of how to enter the program to the microcontroller. I am very interested in creating a tool to set up the system to light up a stage and I discovered a site through google (http://www.hoelscher-hi.de/hendrik/english/dimmer.htm). I plan to create a dmx driver by using ftdi breakout and some components are simple and easy to come by (from dfrrobot + max485 ftdibreakout + resistor 100 ohms) and the tool may suggest I make. Then I was stringing a series of electronics like the one in http://www.hoelscher-hi.de/hendrik/english/dimmer.htm with the main components of an atmega 8515-16 PU as his driver. Maybe anyone can give me a clue in full, how do I get into the program to enter the mine by using atmega8515 avrstudio 4.18 and avrisp mk II. A tool that has been in my possession:   1. dmx Series with atmega 8515 (http://www.hoelscher-hi.de/hendrik/english/dimmer.htm) which I will use as the recipient of your dmx signal dmx-made me. 2. AVRISPMKII (USB) CLONE with reference to NUE-125 programmers. 3. PC Windows XP who have already installed the avrstudio 4.18 therein. 4. a laptop windows 7 64 bits.   Thank you for any help from you.

Question by triesna    |  last reply


USB, AVR, and PICs! Oh my!

Heya! I come from a pretty solid CS background, so I'm trying to wrap my head around the concept of EE projects.  I've got the basics of circuit design down, but I'm getting a little bogged down researching how to interface USB<-->ICs.  While I know efforts like Arduino provide a significant amount of pre-built software and hardware that can accomplish most DIY projects, I would really prefer to learn/have control over the whole software stack (and as much of the hardware stack as possible) from App to Userspace Driver to Kernel Driver (I've written a few, but never actually built my own circuitry to talk to).  I'm looking to learn for some resources on how to interface at a low level.  I wouldn't shy away from writing my own PIC/AVR/??? bootloader if it means I have more control over the communication stack.  I'm sure I'd be re-writing a lot of the Arduino/AVR software that's out there, but hey, I see it as a learning opportunity... right? :) It seems that FTDI makes some USB/UART(Serial) chips that many of the sparkfun-esque USB->Breadboard adapters are based on.  From what I can tell though, most of the chips do literal USB Full/Low speed->115200 bit/s Serial connection.  This seems like an awfully large downsample of the possible communication bandwidth... Is this how things like printers, external hard drives, and webcams work? So, in short, if I was going to write my own USB stack/drive/kernel module to go along with a custom IC bootloader, how would I go about it? Are there any resources out there describing how one would go about this? Thanks for your time! 

Topic by skyfire360    |  last reply


arduino code stalls in mid program?

I'm using a rotary encoder, and to test it, I wrote a program with an interrupt on pin two that counts (with a state machine for the direction and two parts per cycle), but whenever I spin the encoder too fast, the program simple stops sending values.  Its running on an uno with a FTDI friend (becaust the serial chip on the board itself is fried), with a 32 cycle per revolution encoder on pins two and seven.  The encoder is standard quadrature, with an optical pickup and slotted disk.  It works fine normally, the problem only occours when it's spun too fast.  I will need it to spin quickly for my application.   I tried closing and reopening serial communications, and it didn't help, I have to reset it to make it work again. here's the code: #define ENCA 2 #define ENCB 7 int r = 0; float pos = 0; void setup(){   Serial.begin(9600);    pinMode(ENCA, INPUT);    pinMode(ENCB, INPUT);    digitalWrite(ENCA, HIGH);    digitalWrite(ENCB, HIGH);      attachInterrupt(0, epos, CHANGE); } void loop(){ delay(1); } void epos(void){   r = 1;   if(digitalRead(2) == HIGH){    if(digitalRead(7) == LOW){      while(r == 1){        delay(0.1);        if(digitalRead(2) == LOW){          r = 0;        } else {          if(digitalRead(7) == HIGH){            pos = pos + 0.015625;            r = 0;          }}}                                     }    else {      while(r == 1){        delay(0.1);        if(digitalRead(2) == LOW){          r = 0;        } else {          if(digitalRead(7) == LOW){            pos = pos - 0.015625;            r = 0;          }}}    }    Serial.println(pos); }else{   r = 1;    if(digitalRead(7) == HIGH){      while(r == 1){        delay(0.1);        if(digitalRead(2) == HIGH){          r = 0;        } else {          if(digitalRead(7) == LOW){            pos = pos + 0.015625;            r = 0;          }}}                                     }    else {      while(r == 1){        delay(0.1);        if(digitalRead(2) == HIGH){          r = 0;        } else {          if(digitalRead(7) == HIGH){            pos = pos - 0.015625;            r = 0;          }}}    }    Serial.println(pos); }}

Question by jduffy54    |  last reply


AAAAAAaaaaaaaaaahh!!!!! WHY WHY WHY Cant my computer see my Arduino? Answered

Going on my 2nd week...thats 14 days  of trying EVERYTHING I can find to get my Win xp pro 32bit - sp3 to see anything beyond the USBasp?   I've completely given up on trying to get the UNO direct USB hookup...I only get NEW DEVICE- USB2.0-SERIAL . Uninstalled-reinstalled- repeat with port changes and following the SAME directions posted all over the interwebs.  My DIYduinos have UNO and 2 with Deum'nove bootloaded and blink sketch installed when I purchased them....they give the blinkin LED when powered up. I've also had several unsuccessful attempts at the FTDI driver....the USB2.0 "official" drivers...the Arduino IDE USB driver..you name it...I probably tried it.  nothin' I'm no baby, but, I'm seriously on the verge of frustration tears!!  apparently I'm the only one who has this issue 'cause theres nothing I can find on it...the existing instructions out there are sooo frustrating in themselves as they just plug it in and there computer sees the UNO or whatever and they just go on from there...or stop after windows sees the USBasp programmer....I have THAT but, cant get any further with it. My Uno clone has a10 pin USBasp header on it...says right on it USBasp!...When I hook it all up, I get power on the board(s) from the USBasp programmer hooked to my comp...windows sees the USBasp but nothing attached...let alone a virtual com port arrangment. PLEASE anyone who knows what the issue might be or an educated guess is welcome too!!!  I'll send you Art!  or a 'duino with LM293D chips able to drive 2 stepper motors I've made!  if you solve it...you'll be rewarded somehow!!!

Question by schel    |  last reply


Help with MAX232 Serial Converter troubleshooting?

Ok..long story short.. built this Instructable: (minimal Arduino on poerfboard,.  w/ blank Atmel) I put this on a breaboard instead https://www.instructables.com/id/Perfboard-Hackduino-Arduino-compatible-circuit/ I then installed Arduino IDE, as well as WinAVR/avrdude I tried to build a parallel programmer: http://www.arduino.cc/en/Main/ParallelProgrammer but it didnt work.. (not sure if it because of WinAVR?avrdue setting?  but command line AND flashing bootloader through Arduino IDE did NOT WORK.. AVRDUDE gives this response: avrdude: can't open device "giveio" avrdude: failed to open parallel port "lpt1" pinout for parallel programm was as follows: PP     ATMEL  (pinout) 1    -  19 2    -  17 11  -  18 16  -  1 18  -  GND on breadboard*** no clue even Ive asked and googled.. couldnt find a 'real' solution to this.. so I looked around..and I found a couple MAX232 chips laying around..figured Id use these to build a Serial Converter using this tut: http://sodoityourself.com/max232-serial-level-converter/ I this all set-up on my breadboard: (pics to check what Im doing wrong) *******(the images shows the vRegulator moved over 1 pin..it has been corrected but after pic was taken) http://dmstudios.net/misc/max232_circuit/top.jpg http://dmstudios.net/misc/max232_circuit/1.jpg http://dmstudios.net/misc/max232_circuit/2.jpg I have checked the vRegulator portion..  I have a cap BEFORE the regulator  *bridging GND & output* and I use my meter to check that there is, in fact, 5v coming from it..  and there is... HOWEVER...  the vRegulator gets SUPER HOT, SUPER FAST!... if I dis-connect the pin 16 form the  chip to the ++ then the vRegulator does NOT get hot... once I bridge it.. instant HEAT.. so is it something I have done wrong in my diagram? http://dmstudios.net/misc/max232_circuit/diagram_1.jpg vRegulator not show in diagram here;; in this diagram.. as soon as I hook up the V++ to pin16 on the chip.. and the cap..etc  something is wrong?? I 'do' have some FTDI cables coming from China for a few bucks.. but this is ONLY for sketch uploading...correct? I also have a true Arduino Due coming as well... but hate waiting weeks when I want to play and get started now! Any help is appreciated..   Im new to all this, so be nice!  LOL thanks gang!

Topic by xl97  


Raspberry pi 2 processing capability?

Hearing the announcement of the new latest and greatest Raspberry Pi 2, now a backwards compatible computer with a 0.9GHz ARM Cortex-A7 quad core processor and 1GB of LPDDR2 SDRAM, I was wondering of the feasibility of using it as a very cheap and basic solution for a simple computer for my lab. Currently, I am using a compaq presario C700 Pentium Dual-Core laptop, that has been maxed out with 2GB 800MHz kingston RAM, and is running Kubuntu. I should also not the HDD has been replaced with a 120GB one from an old and broken Xbox. I do not like it much anymore, because although the performance of it is acceptable, the screen is a bit low res, at 1280x800, it's pretty dark (or at least until it 'warms up' to full brightness), it had a major scratch on the screen, (no idea how it got there) and after buffing it out with many methods, including with an eraser, the area has became discolored, like a portion of the screen has higher gamut and brightness, and lower black levels. :( Oh well. The main killer for it is that it's form factor. It is too big, heavy, the screen is too small, and it is very cumbersome to use far away in the corner of my workbench. Of course being a laptop, the 'base' of it is fixed to the screen, and to move it closer to me takes away lots of valuable space on my really messy bench. I mostly use it to research part numbers, get schematics off of google, watch YT videos, log data from serial ports (including my UNI-T multimeter with basic data-logging capabilities), and stuff like that. I may have as many as 20 tabs open at a time, which did tax my old compaq C700 when it had 1GB of RAM, but that was likely due to a memory leak issue with chrome, since I have the SAME issue with my main desktop, with 8GB of DDR3 RAM. If the video by MAKE is anything to judge, it looks just as powerful, as this embedded video is large! https://www.youtube.com/watch?v=pZz8MW3DSqA My hope is to replace it with a raspberry pi, and be able to use it for these basic operations w/ a old LCD monitor which can be picked up off of craigslist for cheap. Maybe I can even find one in the dump :P. Maybe I can configure the GPIO pins to be COM and parallel ports, w/ clock, Tx, Rx, and everything else! That way an external FTDI chip and using the limited number of USBs is not an issue. Is that possible?

Question by -max-    |  last reply


Raspberry pi 2 processing capability?

Hearing the announcement of the new latest and greatest Raspberry Pi 2, now a backwards compatible computer with a 0.9GHz ARM Cortex-A7 quad core processor and 1GB of LPDDR2 SDRAM, I was wondering of the feasibility of using it as a very cheap and basic solution for a simple computer for my lab. Currently, I am using a compaq presario C700 Pentium Dual-Core laptop, that has been maxed out with 2GB 800MHz kingston RAM, and is running Kubuntu. I should also not the HDD has been replaced with a 120GB one from an old and broken Xbox. I do not like it much anymore, because although the performance of it is acceptable, the screen is a bit low res, at 1280x800, it's pretty dark (or at least until it 'warms up' to full brightness), it had a major scratch on the screen, (no idea how it got there) and after buffing it out with many methods, including with an eraser, the area has became discolored, like a portion of the screen has higher gamut and brightness, and lower black levels. :( Oh well. The main killer for it is that it's form factor. It is too big, heavy, the screen is too small, and it is very cumbersome to use far away in the corner of my workbench. Of course being a laptop, the 'base' of it is fixed to the screen, and to move it closer to me takes away lots of valuable space on my really messy bench. I mostly use it to research part numbers, get schematics off of google, watch YT videos, log data from serial ports (including my UNI-T multimeter with basic data-logging capabilities), and stuff like that. I may have as many as 20 tabs open at a time, which did tax my old compaq C700 when it had 1GB of RAM, but that was likely due to a memory leak issue with chrome, since I have the SAME issue with my main desktop, with 8GB of DDR3 RAM. If the video by MAKE is anything to judge, it looks just as powerful, as this embedded video is large! https://www.youtube.com/watch?v=pZz8MW3DSqA My hope is to replace it with a raspberry pi, and be able to use it for these basic operations w/ a old cheap LCD monitor which can be picked up off of craigslist for cheap. Generally old 4:3 monitors go for next to nothing. Maybe I can even find one in the dump :P. Maybe I can configure the GPIO pins to be COM ports, w/ clock and everything else! That way an external FTDI chip and using the limited number of USBs is not an issue. Is that possible?

Question by -max-    |  last reply