Instructables: question - technology - microcontrollers Sat, 28 Mar 2015 05:43:46 PDT BLOX v1.01 Please how do I enable a level sensitive interrupt for my PIC on mikro c? ikechukwu.dimobi In all the sites I have checked, its only the INTEDG command to enable  rising or falling edge interrupt. Please how can I enable a level triggered interrupt on my PIC18F14K22 with mikroc compiler? Thank you. 
By: ikechukwu.dimobi

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Fri, 20 Mar 2015 10:46:36 PDT
There are many Target vendor in Mbed site. But Platform vendor made platform boards with NXP chip only. Why? iam_maker_leo Hello, I'm Leo who is Korean and interest in Mbed platform. Anyway I am on checking Mbed platform in Mbed site. ( During check, I found that there are many Platform vendor and Target vendor. But Platform vendor (which dose not have own MCU) made platform boards...
By: iam_maker_leo

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Thu, 12 Mar 2015 00:10:16 PDT
How to control a motor via app/microcontroller?? tommy109 New to Instructables and I love the site. Not sure if I'm posting this in the right place or not! I'm completely new to the whole internet of things but intruiged by it and want to learn more. I'm looking for a bit of advice. I'm looking to make a basic enough app that allows the user to move a woo...
By: tommy109

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Sun, 22 Feb 2015 09:57:59 PST
how to choose an electric motor and speed controller? iSulley Hi, I`m going to design turning table (50-60cm diameter) the spinning disc is made from aluminum so its weight won`t exceed 10kg. it will spin by the mean of an electric motor (maybe gears will be used also). I want the spinning speed to be variable where I can control it from 0 up to 300 rpm (gradu...
By: iSulley

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Fri, 20 Feb 2015 06:20:15 PST
Atmel ICE basic? mattilaniko Hey I got Atmel ICE basic, 6 pin wire and atmega1248. I try to sent  program code, but there comes error message. How I should connect  pins?
By: mattilaniko

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Tue, 17 Feb 2015 03:15:22 PST
How to interfacing cc2500 into pc? kumar manoj now, i am stuck in my project this state,the data is transfer to pc using cc2500 and pic,then transfer the data pc to to takw the data in pc,also i am using visual studio,but how to get the data in cc2500. please helb me  
By: kumar manoj

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Fri, 13 Feb 2015 02:21:52 PST
how to integrate a microcontroller with either a CT or a power meter to read values for automation knillzbaba Working with either an LPC 2129 or an 8051 microcontroller, is there a way to make get inputs from either a CT or power meter? 
By: knillzbaba

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Fri, 23 Jan 2015 05:09:17 PST
Driving DC brushed motors with Pi/PWM/Arduino? RocketPenguin I have a few motors (2) that i would need to be able to drive via a PWM input (Probably from pi/arduino). I have been looking at H bridges, and that seems to be my answer, however, I can't figure out which one i need... The motors are identical 9v ~2 amp stall current motors. I would need both direc...
By: RocketPenguin

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Sun, 11 Jan 2015 09:08:13 PST
accumulator # immediate data ? vead hello , What I need to know  if I want to load the immediate value  into the accumulator accumulator # immediate data accumulator is  8 bit, assume  address of accumulator is  11 10 01 01 temporary register is  8 bit  that hold Immediate data 00 00 00 11 Instruction register example LD A, # 00 00 ...
By: vead

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Wed, 24 Dec 2014 18:52:43 PST
PIC24F FATFS example not compiling? Higgs Boson I have been trying to use the pic24 example that comes with the FATFS library download on MPLAB X, but everytime I go to build the project this appears on the output:  CLEAN SUCCESSFUL (total time: 6s) make -f nbproject/ SUBPROJECTS= .build-conf make[1]: Entering directory `C:/Us...
By: Higgs Boson

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Fri, 28 Nov 2014 16:26:34 PST
Can anyone help me program this 8x1 LCD with Arduino? ASCAS I'm having trouble programming this 8x1 character LCD. It's not compatible with the Arduino's LiquidCrystal library. The manufacturer failed to give a detailed datasheet. This is the supplier of the product: click Here's the Pin Map (according to supplier) : 1.) Gnd 2.) VDD (3.3v) 3.) CS Input 4.)...

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Wed, 26 Nov 2014 04:51:20 PST
Looking for code to make a Atting85 into a Toggle Touch LED light? BeerCzar I want to make a simple touch lamp using an attiny85 that will toggle on and off with a single touch point. I have looked on the web and found lots of touch code, but nothing that exactly fits my need. I am not a programmer and cannot tweak someone else code. I will be running the whole thing off re...
By: BeerCzar

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Sun, 23 Nov 2014 13:46:25 PST
I want to make a variable battergy charger that can charge batterof any ranges from 3 to 12 vollts? ManiacPP
By: ManiacPP

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Thu, 30 Oct 2014 00:33:07 PDT
that piece is this? (image, electronics) ualbuquerque Well, I wonder what electronics part is that I have, seems to be an integrated circuit progamavel, found her in a radio circuit.   It is written: SAMSUNG S603V S1A0426CO2-SO          KD8025G And I would like to know how to search on the internet specific parts like this
By: ualbuquerque

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Sat, 18 Oct 2014 10:27:10 PDT
PROGRAM CODES FOR DIGITAL TEMPERATURE SENSOR CIRCUIT IN A BREADBOARD USING ATmega8? SangeethS Program codes for ATmega8 digital temperature sensor
By: SangeethS

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Sat, 4 Oct 2014 05:33:19 PDT
Does PIC16F84A has TIMER0 interrupt? How to use with button? worthyrabbito I wanna connect my 8LEDs in the PORTB of the PIC then a button in any PORTA pins. I'll use the button to change the pattern of the blinking. How to do this in timer interrupt? Is it possible for the TMR0 to check the status of the button, if it was pressed then change the pattern? Say, I have four p...
By: worthyrabbito

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Fri, 15 Aug 2014 18:14:43 PDT
How i wipe the arduino bootloader from the ATMega328p? ahmed.hzzaa I have an "ATMega328p" microcontroller with arduino bootloader burned on it but now i want to erase the bootloader so i can write the code in Embedded C and use an AVR ISP Programmer ,, i want to know how i wipe the bootloader from the chip ?? Thanks in advance
By: ahmed.hzzaa

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Sun, 10 Aug 2014 03:00:43 PDT
assembly program sahebpanda2001 I have pic12f675. i have the neccessary asm and the header files.but i cannot compile it. please can you send me the hex file after compiling the program? as iam a student of class 8, idon't know how to compile. can you also send me the required steps? The required files are posted ;**************...
By: sahebpanda2001

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Sat, 9 Aug 2014 00:35:38 PDT
why certain photocell are not working for some PCB ? kingslyx i have one sliding door controller ,the photocell is defective and i were try to replace with another set of photocell ,after the installation of photocell the safety is not working ,the supplier says the control board will not be supportive for the any other kind .dear experts may i know how this i...
By: kingslyx

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Mon, 4 Aug 2014 13:34:05 PDT
Any one know if Philips P87C51SBPN are reprogrammable? jwoods10 Any one know if Philips P87C51SBPN are re-programmable? I have a bag of used microcontrollers from a company changing their stock, but they all have something written to them. Was wondering if they were re-programmable and if I could sell them on Ebay as used. I know they are 8-bit microcontrollers....
By: jwoods10

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Sun, 8 Jun 2014 13:12:43 PDT
ATtiny 2313 projects artworker I recently got a ATtiny 2313. Any idea what should I try after my preliminary programming practices.
By: artworker

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Mon, 12 May 2014 00:32:53 PDT
PINB register on ATtiny45 not working? Higgs Boson I've been programming a pretty simple led driver in Atmel Studio 6 with the attiny45. The idea is that hitting a push button will advance through three different modes of the LEDs, solid, strobe, and fade. When you reach the last mode hitting the button again should reset to the first mode. For some...
By: Higgs Boson

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Fri, 25 Apr 2014 21:42:22 PDT
[URGENT] Unable to Connect Ethernet Shield With Ubuntu:? Beacon_av [URGENT] Unable to Connect Ethernet Shield With Ubuntu: I have Arduino Uno R3 compatible Microcontroller and Ethernet Shield v1.1 I tried a lot But the ethernet Shield isn't responding Online need help. Details are below My Ubuntu IP: Mask: Gateway: Demo Ar...
By: Beacon_av

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Sun, 20 Apr 2014 06:31:35 PDT
Are there any kits or instructions on how to build a DIY two way radio (Walkie Talkie)? jtpetray I am working on a  costume set of hearing protection for when I work at my farm. I am adding Bluetooth for music and calls, lights, and of course a 2 way radio because I do no get service all over and would like to be able to communicate with my wife at the house. So I originally looking into using ...
By: jtpetray

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Wed, 16 Apr 2014 12:26:03 PDT
How do I choose an optocoupler/transistor? Suraj Grewal There are 2 circuits,one is a clap switch which provides output to ground voltage as 12 volts,and with a resistor,I managed to get an led to turn on each time I clap.I wanted to interface it with a clock which shows time when a button is pressed,but the problem is the button(marked as "show") isn't ...
By: Suraj Grewal

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Wed, 9 Apr 2014 00:27:04 PDT
Can someone assist me on my idea involing a 555 timer? tramont Hey my fellow instructalites!!! I have this great prom proposal in mind but im getting a little confused on how I want to set it up or at least creating a schematic. Anyway the idea was that I was going to get a large pcb(already have it) and use some blue and green leds to spell out "Prom or Nah?"....
By: tramont

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Wed, 2 Apr 2014 22:32:43 PDT
How can I sequence several small motors. oneartist Wife approved Home Theater ‚ÄčI plan to build raised panel cabinets that also hide home theater speakers and 60" screen. Open display/bookshelves sit between the speaker garage and the 60" screen. The raised panel (I'll make with my 5hp shaper) covering the speaker will roll over the display cabine...
By: oneartist

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Wed, 19 Mar 2014 10:12:28 PDT
Does Any one KNow to Use Multi-Flash Production tool for USB Flash Drives? chatsbk007 Does Any one KNow to Use Multi-Flash Production tool for USB Flash Drives? MY pd doesnt format , always show an i/o error...... Searched google but of no help.... tried adding new key in Hkey/......CurrentcontrolSet/control but of no value..... tried formatting using diskpart in cmd tried out HP dis...
By: chatsbk007

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Mon, 17 Mar 2014 08:55:54 PDT
Loading Bootloader into P89V51RD2? HarishN I have two P89V51RD2 microcontrollers, Out of this only one is working fine and in the other one the bootloader is corrupted. How can i replace the corrupted bootloader using working P89V51RD2. Can i use MOSI, MISO & SCK pins of P89V51RD2 microcontroller ?
By: HarishN

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Sun, 26 Jan 2014 08:47:30 PST
control via internet? thijaz i'm new on this people i built a circuit & i control it with my PC if i wanna control it via internet should i buy static IP or I can upload my app on my website directly ?? if there another way that will be helpful 
By: thijaz

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Wed, 22 Jan 2014 07:09:25 PST
has anyone used the sparkfun tiny avr programmer to program an atmega chip? codongolev I know that in the documentation it specifically says that you can program an atmega chip with it; however, I don't know how I would go about it. can I program it through the arduino IDE like I can with the attiny85? if so, where would I get the files for it (I had to get specific files for the atti...
By: codongolev

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Sat, 28 Dec 2013 08:42:26 PST
can I add stepper motor to my circuit with out using pic micro controller ? layal_1 Hello , my project in mechatronics is Railway Grade Crossing Circuit and we want to add a stepper motor to the circuit  .How can we add it ? i  want to show mechanical movement in the output  ... and if it necessary to use micro controller what is the simple way to use because i only have few weeks...
By: layal_1

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Mon, 11 Nov 2013 12:45:14 PST
Light circuit that flashes an LED once when a light is detected? iA2K I'm kinda a new to circuits and i would really like your help guys! I'm trying to create a circuit that flashes an LED once if light is detected. I also want it with a 2-3secs delay which means after the LED flashes once the circuit turns off for 2-3secs (even if light was detected after the led fla...
By: iA2K

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Mon, 28 Oct 2013 09:03:22 PDT
Old hard to find cord`s circuit? andreblue So at my school we still use old old programmable relays. The Crouzet Millenium 2. The problem is that we are plugging in and out the cords each day which leads to as you can think, them to stop working. My teacher can not find them and I am sure the school does not have the 100 ish dollars to drop ...
By: andreblue

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Wed, 25 Sep 2013 10:02:56 PDT
How do I use arduino's analog input? Sowee I'm building a 'time fountain' and i'm planning to make the arduino know how many droplets of water are falling each second. My ideia was to get two wires, get them really close and when there was a drop of water the circuit would close. The problem is, how do i get arduino to get readings right out...
By: Sowee

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Mon, 23 Sep 2013 22:50:20 PDT
HI! I have a USB To TTL board. Can i program avr atmega(atmega168) and pic16f series(pic16f72) microcontrollers with it? ddeepu can i simply use 5v, gnd, RXD, TXD pin for programming? My boards image is attached with this question.
By: ddeepu

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Wed, 18 Sep 2013 23:51:18 PDT
I have a pic16f72 and is burned can i erase it and reburn it? ddeepu What software should i use i have pony prog.
By: ddeepu

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Tue, 17 Sep 2013 06:54:16 PDT
How many AVR projects have there been on Instructables since its inception? sylviebarak How many of the projects on instructables have used an Atmel AVR microprocessor?
By: sylviebarak

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Fri, 23 Aug 2013 18:05:19 PDT
Impossible to identify microcontroller? MDheliMech So I took apart a remote control for a cheap helicopter. There is a 14 pin microcontroller on board. Unfortunately it looks like any other 14 pin IC out there and there are no markings on it. Is there anyway to identify possibilities. For example if I mapped where each pin goes on the PCB. Luke pin ...
By: MDheliMech

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Sun, 7 Jul 2013 18:40:12 PDT
Change a 7 seg display from CC to CA in code? WWC I am not as familiar with C/C++ as i am with Arduino. I am wanting to change this code from Common Cathode to Common Anode. How can i do this? //_____________________ fuse.c #define F_CPU 8000000UL #include #include #include #include #include #define _REVERSE #defi...

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Mon, 3 Jun 2013 02:39:52 PDT
Divide by 8? WWC What is the purpose of using divide by 8 in avr programming? Without knowing more about this is seems like the long way around.

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Sun, 26 May 2013 16:53:22 PDT
why does the lcd shows the old value after I make the power off ? dndanah1 Hello, my project is a Real Time Digital Clock I'm using LCD 16x 2 with DS1307 connected with pic18f4550 when i burn the code to the circuit it shows the time correctly but when i make the power off then make it ON it shows the previous code which is not correctly ! How can i fix this ? shall i us...
By: dndanah1

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Fri, 17 May 2013 10:45:18 PDT
If i m not getting PIC16F628A what else i can used instead of it??? malkit672 list of ICs can be used instead of PIC16F628A.
By: malkit672

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Mon, 1 Apr 2013 09:07:53 PDT
How can I make a Burglar alarm using ultrasonic sensor with a microcontroller Zilog Z8? AljonSalvatore We were asked to construct  a burglar alarm using ultrasonic sensor with a micro controller Zilog Z8. It's our requirement for the Final term this semester. We also have difficulties in our documentation because it is in thesis format. I know that somebody can help us from Instructables. We definite...
By: AljonSalvatore

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Sat, 23 Mar 2013 08:11:53 PDT
Code writting? bowhunter616 I'm trying to build a line follower robot and I don't know the first thing about writing code.  I like to play with electronics but have never attempted building anything that requiered programing so I thought I would start simple.  I have an Arduino Uno R3, Pololu QTR-8 (only using 6 of the sensors...
By: bowhunter616

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Wed, 20 Mar 2013 07:12:35 PDT
Picaxe 28x2 BCD to Decimal conversion? LED Maestro Hi, Bit of a daft question really. I am trying to output my clock data from my Pic' 28X2 to a custom array of LED's. I have the code that reads my clock (RTC DS1307) and coverts the BCD input to decimal but no matter what I can't seem to find out how to output the decimal data or have the picaxe arr...
By: LED Maestro

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Wed, 20 Feb 2013 14:40:09 PST
Why does the SPI library not work on an Attiny?... hydronics Why does the SPI library not work on an Attiny?.. I found some code on gethub to get around this but... Can anyone point me to a good reference (guide, reference book, etc) for programming that might answer these strange truths that I am oblivious to. My background is Mechanical Engineering and Ardu...
By: hydronics

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Wed, 13 Feb 2013 17:59:18 PST
Using Arduino and 8 servos!? What type of power source? FoamboardRC Hey Arduino guys! I got a question. I am using 8 servos with my Arduino. All the servos are hooked up parallel to the 5v and GND on the Arduino. All the control wires are hooked up on pins 2-9. I'm using 6 AA batteries as my pack. Is this OK for my Arduino? With all these servos moving at once, I w...
By: FoamboardRC

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Thu, 31 Jan 2013 09:45:51 PST
Pic microcontroller button press code activation? Aaamazzara I've just recently started with Pic microcontrollers. I actually have made some pretty cool projects with leds and a few other things that i will probably upload. Right now Im working with a pic 16F628A, I want a command to start only if a button is pressed. Ive tried a few different variations ive ...
By: Aaamazzara

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Mon, 14 Jan 2013 20:32:58 PST
pwm o/p pic? padmanabhan.k Dear sir,                how to get low frequency 30.....300c/s square wave from PIC MCU ,application required to simulate a tachometer.
By: padmanabhan.k

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Fri, 11 Jan 2013 07:49:58 PST