Instructables: question - technology - microcontrollers http://www.instructables.com Tue, 21 Oct 2014 09:02:41 PDT BLOX v1.01 that piece is this? (image, electronics) http://www.instructables.com/answers/that-piece-is-this-image-electronics/ http://cdn.instructables.com/F6M/C28Q/I1ETVGV6/F6MC28QI1ETVGV6.SQUARE2.jpg http://cdn.instructables.com/F6M/C28Q/I1ETVGV6/F6MC28QI1ETVGV6.SQUARE.jpg http://cdn.instructables.com/F6M/C28Q/I1ETVGV6/F6MC28QI1ETVGV6.SMALL.jpg 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? http://www.instructables.com/answers/PROGRAM-CODES-FOR-DIGITAL-TEMPERATURE-SENSOR-CIRCU/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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? http://www.instructables.com/answers/Does-PIC16F84A-has-TIMER0-interrupt-How-to-use-wit/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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? http://www.instructables.com/answers/How-i-wipe-the-arduino-bootloader-from-the-ATMega3/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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 http://www.instructables.com/answers/assembly-program/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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 ? http://www.instructables.com/answers/why-certain-photocell-are-not-working-for-some-PCB/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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? http://www.instructables.com/answers/Any-one-know-if-Philips-P87C51SBPN-are-reprogramma/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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 http://www.instructables.com/answers/ATtiny-2313-projects/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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? http://www.instructables.com/answers/PINB-register-on-ATtiny45-not-working/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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:? http://www.instructables.com/answers/URGENT-Unable-to-Connect-Ethernet-Shield-With-Ubun/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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: 192.168.1.17 Mask: 255.255.255.0 Gateway: 192.168.1.1 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)? http://www.instructables.com/answers/Are-there-any-kits-or-instructions-on-how-to-build/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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? http://www.instructables.com/answers/How-do-I-choose-an-optocoupler/ http://cdn.instructables.com/FO8/O45G/HTRVCKCY/FO8O45GHTRVCKCY.SQUARE2.jpg http://cdn.instructables.com/FO8/O45G/HTRVCKCY/FO8O45GHTRVCKCY.SQUARE.jpg http://cdn.instructables.com/FO8/O45G/HTRVCKCY/FO8O45GHTRVCKCY.SMALL.jpg 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? http://www.instructables.com/answers/Can-someone-assist-me-on-my-idea-involing-a-555-ti/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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. http://www.instructables.com/answers/How-can-I-sequence-several-small-motors/ http://cdn.instructables.com/FK6/0B8P/HSVGHLE2/FK60B8PHSVGHLE2.SQUARE2.jpg http://cdn.instructables.com/FK6/0B8P/HSVGHLE2/FK60B8PHSVGHLE2.SQUARE.jpg http://cdn.instructables.com/FK6/0B8P/HSVGHLE2/FK60B8PHSVGHLE2.SMALL.jpg 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? http://www.instructables.com/answers/Does-Any-one-KNow-to-Use-Multi-Flash-Production-to/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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? http://www.instructables.com/answers/Loading-Bootloader-into-P89V51RD2/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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? http://www.instructables.com/answers/control-via-internet/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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? http://www.instructables.com/answers/has-anyone-used-the-sparkfun-tiny-avr-programmer-t/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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 ? http://www.instructables.com/answers/can-I-add-stepper-motor-to-my-circuit-with-out-usi-1/ http://cdn.instructables.com/FXA/PJYZ/HNVBF7ZC/FXAPJYZHNVBF7ZC.SQUARE2.jpg http://cdn.instructables.com/FXA/PJYZ/HNVBF7ZC/FXAPJYZHNVBF7ZC.SQUARE.jpg http://cdn.instructables.com/FXA/PJYZ/HNVBF7ZC/FXAPJYZHNVBF7ZC.SMALL.jpg 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? http://www.instructables.com/answers/Light-circuit-that-flashes-an-LED-once-when-a-ligh/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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? http://www.instructables.com/answers/Old-hard-to-find-cords-circuit/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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? http://www.instructables.com/answers/How-do-I-use-arduinos-analog-input/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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? http://www.instructables.com/answers/HI-I-have-a-USB-To-TTL-board-Can-i-program-avr-atm/ http://cdn.instructables.com/FWU/SNSK/HLR2KX41/FWUSNSKHLR2KX41.SQUARE2.jpg http://cdn.instructables.com/FWU/SNSK/HLR2KX41/FWUSNSKHLR2KX41.SQUARE.jpg http://cdn.instructables.com/FWU/SNSK/HLR2KX41/FWUSNSKHLR2KX41.SMALL.jpg 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? http://www.instructables.com/answers/I-have-a-pic16f72-and-is-burned-can-i-erase-it-and/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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? http://www.instructables.com/answers/How-many-AVR-projects-have-there-been-on-Instructa/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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? http://www.instructables.com/answers/Impossible-to-identify-microcontroller/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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? http://www.instructables.com/answers/Change-a-7-seg-display-from-CC-to-CA-in-code/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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...
By: WWC

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Mon, 3 Jun 2013 02:39:52 PDT
Divide by 8? http://www.instructables.com/answers/Divide-by-8/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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.
By: WWC

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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 ? http://www.instructables.com/answers/why-does-the-lcd-shows-the-old-value-after-I-make-/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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??? http://www.instructables.com/answers/If-i-m-not-getting-PIC16F628A-what-else-i-can-used/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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? http://www.instructables.com/answers/How-can-I-make-a-Burglar-alarm-using-ultrasonic-se/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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? http://www.instructables.com/answers/Code-writting/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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? http://www.instructables.com/answers/Picaxe-28x2-BCD-to-Decimal-conversion/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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?... http://www.instructables.com/answers/Why-does-the-SPI-library-not-work-on-an-Attiny/ http://cdn.instructables.com/F2U/6MHK/HD4VPY1U/F2U6MHKHD4VPY1U.SQUARE2.jpg http://cdn.instructables.com/F2U/6MHK/HD4VPY1U/F2U6MHKHD4VPY1U.SQUARE.jpg http://cdn.instructables.com/F2U/6MHK/HD4VPY1U/F2U6MHKHD4VPY1U.SMALL.jpg 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? http://www.instructables.com/answers/Using-Arduino-and-8-servos-What-type-of-power-so/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif Enjoying Electronics 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: Enjoying Electronics

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Thu, 31 Jan 2013 09:45:51 PST
Pic microcontroller button press code activation? http://www.instructables.com/answers/Pic-microcontroller-button-press-code-activation/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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? http://www.instructables.com/answers/pwm-op-pic/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 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
what is the basic way of using leds as display from its matrix? http://www.instructables.com/answers/what-is-the-basic-way-of-using-leds-as-display-fro/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif avinash reddy what is the way of using leds as a display and how a specific leds are lighted in matrix 
By: avinash reddy

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Sat, 5 Jan 2013 06:02:16 PST
i want an High power LED constant current ckt? http://www.instructables.com/answers/i-want-an-High-power-LED-constant-current-ckt/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif kiranvaka
By: kiranvaka

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Fri, 4 Jan 2013 02:05:14 PST
PIC12F629 programmer? http://www.instructables.com/answers/PIC12F629-programmer/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif chetancc Hi all,       I want to program PIC12F629 with readymade .hex code. Which programmer should I use? I would like to know the best and cheapest programmer available. I bought PICKIT2 clone from India but I had very bad experience with it. I couldn't program with it.       Can you please suggest me goo...
By: chetancc

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Fri, 28 Dec 2012 21:14:10 PST
how do i plug in my Linear Actuator in to my Vex Cortex Microcontroller? http://www.instructables.com/answers/how-do-i-plug-in-my-Linear-Actuator-in-to-my-Vex-C/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif therobotman i know how to do servos and such, but the actuator has 5 wires, and i dont know where to put it.
By: therobotman

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Wed, 26 Dec 2012 15:52:11 PST
Need a controller (or program) for low voltage solenoid valves, programmable to have a station stay on for days @ a time http://www.instructables.com/answers/Need-a-controller-or-program-for-low-voltage-sol/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif Brent Owen I have 16 solenoids that need controlling to open air valves in sequence that create bubbles in a fountain that simulate moon phases.  Would like something that is stand alone hardware over a program that would require a computer to be on 24/7. 
By: Brent Owen

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Thu, 20 Dec 2012 16:35:15 PST
Does anybody know a tiny MCU for PWM and USB Connection? http://www.instructables.com/answers/Does-anybody-know-a-tiny-MCU-for-PWM-and-USB-Conne/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif flixer I need a microcontroller with 3 PWM pins, for an RGB LED. I also need to connect it to a computer using USB. I`ve seen the attiny2313 has enough PWM pins for this, but is quite big. As I understand, the attiny 25 has just 2 PWM channels. Does the attiny24(or 44 or 84) have enough pins for USB Serial...
By: flixer

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Wed, 5 Dec 2012 07:48:25 PST
Analog to Digital Conversion on PIC18f4520 http://www.instructables.com/answers/Analog-to-Digital-Conversion-on-PIC18f4520/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif Chris414 Hello there! I am building a custom digital weighing scale. My issue is not about how to do A2D, but on how to use the least amount of power doing so.  So imagine you just placed an object on the scale, i want the microcontroller to notice a change in weight and perform a2d on the load cell voltage...
By: Chris414

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Tue, 4 Dec 2012 08:31:16 PST
External interrupt on atmega AVR http://www.instructables.com/answers/External-interrupt-on-atmega-AVR/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/file/TXT.gif http://www.instructables.com/static/defaultIMG/file/TXT.gif The Skinnerz I've been learning to program an AVR (atmega644p) in assembly, but I cannot get it to respond to any interrupts. I am trying to use the external interrupt INT2 on portb,2, but the program does not respond to a signal on the pin either as an input or output. I have verified all the ports work, and h...
By: The Skinnerz

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Sat, 24 Nov 2012 10:24:58 PST
Creating a Twitter Controlled building for a Twitter office: What are the possibilities? http://www.instructables.com/answers/Creating-a-Twitter-Controlled-building-for-a-Twitt/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif tomgreenfield_17 I'm thinking that trending topics can influence the building live; ie the wall morphs into the shape of #obama if he is trending, or the roof changes shape to reflect areas of the office making an image of #newsinternational etc.  You get the idea.  I'm trying to brain storm to work out what, in the...
By: tomgreenfield_17

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Wed, 21 Nov 2012 07:56:22 PST
Cheap PIC microcontroller? http://www.instructables.com/answers/Cheap-PIC-microcontroller/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif Chris414 What is the cheapest PIC microcontroller with an analog input(a2d capability) and a few digital outputs?? and how much does it cost?? Thanks!
By: Chris414

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Wed, 14 Nov 2012 02:16:33 PST
Should i buy the AT89c51? http://www.instructables.com/answers/Should-i-buy-the-AT89c51/ http://cdn.instructables.com/F21/RTQJ/H9DVZ5DN/F21RTQJH9DVZ5DN.SQUARE2.jpg http://cdn.instructables.com/F21/RTQJ/H9DVZ5DN/F21RTQJH9DVZ5DN.SQUARE.jpg http://cdn.instructables.com/F21/RTQJ/H9DVZ5DN/F21RTQJH9DVZ5DN.SMALL.jpg Hafiz Mohammad Shayan Tariq So i was thinking about buying a micro-controller for a while and i found this in the local shop http://www.atmel.com/images/doc0265.pdf. It doesn't come with a development board and i have no idea how to program it. So can anyone help me get started and make a Dev board? P.S Sorry if my English is...
By: Hafiz Mohammad Shayan Tariq

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Mon, 12 Nov 2012 06:52:57 PST
How to get an ATtiny to run an accurate clock? http://www.instructables.com/answers/How-to-get-an-ATtiny-to-run-an-accurate-clock/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif TheGreatS I'm making a clock with an ATtiny and I would like to know how to make it tell accurate time. I'm already pretty sure it would require an external crystal or resonator, but I just don't know the frequency or if there are any code requirements. I'll be programming the chip with an Arduino, if that he...
By: TheGreatS

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Sun, 11 Nov 2012 17:33:31 PST
how much essential current rating for adapter for same voltage ...to supply the microcontroller board http://www.instructables.com/answers/how-much-essential-current-rating-for-adapter-for-/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif SarikaBharilya i have a avr micro controller development board for which i have to require a 12volt/500 mamp adapter but  i have a 12volt/1amp adapter .Can i use the  1 amp rating adapter for same voltage?
By: SarikaBharilya

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Fri, 2 Nov 2012 05:12:52 PDT