Instructables: question - technology - microcontrollers Sat, 16 Dec 2017 11:03:43 PST BLOX v1.01 what purpose of rotate right and left through carry? Irfanlee
By: Irfanlee

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Tue, 14 Nov 2017 22:01:36 PST
How to use FreeRTOS.h files ? vead  If I want to create any  rtos project. I have to use FreeRTOS.h files. its common file for all new project. if I want to use for cortex M0 device. do i need to modify  FreeRTOS.h files for cortex M0 or I can directly download header file for cortex m0 from from free rtos website ?
By: vead

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Sun, 17 Sep 2017 09:49:15 PDT
Arduino Error expected ',' before '*' token? StevenM267 My Sketch I used Micro soft to generate the Polynomial  below.       y = 28.089x5 - 158.77x4 + 410.33x3 - 426.65x2 + 532.31x - 320.03R² = 1 float I04 = A0; int readValue1; float x5 = 22.52; float x4 = 95.802; float x3 = 237.57; float x2 = 126.81; float x1 = 561.04; float x0 = 448.98; float I04_F =...
By: StevenM267

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Thu, 7 Sep 2017 13:43:38 PDT
Using Adafruit Motor Shield in MATLAB Begginer2017 Hi All, I am quite new to robotics, facing an issue and looking for expert advice, appreciate if you can guide me. I got Aurdino Uno connected to the laptop, set up all good. connected a potentiometer to the board, and could read the voltage in MATLAB from 0 to 5 V, all ok. Connected a DC motor t...
By: Begginer2017

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Tue, 5 Sep 2017 19:23:53 PDT
Anyone with experience with CAN bus + Teensy 3.6? -max- I have been recently messing around with the Teensy 3.6, of which the MK66FX1M0VMD18 it's rocking is probably one of the most powerful microcontroller I have ever messed with. (180MHz ARM Cortex M4, 256K RAM, hardware FPU, far more than enough GPIO, and an insane amount of serial interfaces!) I am ...
By: -max-

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Sun, 23 Jul 2017 22:05:21 PDT
are multiple Arduino's and a Raspberry Pi 2 capable of controlling a humanoid robot? mderton Hello, I am building a humanoid robot, around 1 meter tall. I was wondering if I could use a Raspberry Pi 2 to control Ai, voice recognition, and OpenCV, while I would have multiple Arduino's controlling the electronics (motors, sensors, displays, etc). I would have an Arduino Mega or Due as the mas...
By: mderton

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Sun, 9 Jul 2017 16:50:00 PDT
Embedded human interface device for voice and data communication? JishnuprakashN i am trying to built a Bluetooth device which can communicate or live stream  voice to master and also the status of switches in it. ie, it should sent both voice and data simultaneously, can anyone suggest Bluetooth module which i can do this. am doing my project on pic..
By: JishnuprakashN

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Wed, 5 Jul 2017 23:22:33 PDT
How can i create a speedometer using Atmega16 Microcontroller? Shivam_123 I have knowledge about using DC motor and LCD Interfacing in AVR(Atmega16) Microcontroller. I am working on a project "A line follower robot". I have almost completed my project, just want to add speedometer into it. Please help! Thanks in advance!
By: Shivam_123

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Tue, 4 Jul 2017 10:47:59 PDT
How to call an api with nodemcu from this wesite:http: (// Techovator0819 The website above offers free Timezone APIs. I have been trying to request the API with my esp8266 NodeMCU, but still, i get no response. Can anyone please demonstrate to me with a code sample how it's supposed to be done? I will be posting my code soon. The foll...
By: Techovator0819

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Tue, 9 May 2017 22:01:46 PDT
What is the code for the project consists of lcd with IRsensors with arduino uno project مرادا What is the code for the project consists of lcd with IRsensors with arduino uno project it works at the expense of the number of cars that pass the street with an account number in an hour and one which looks like the work of the work of system accounting system
By: مرادا

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Sat, 11 Feb 2017 14:35:54 PST
Best wireless communication device for controlling 200 microcontrollers? bigjohn412 Heyo, I am looking for suggestions of wireless communication devices for microcontrollers (such as Arduino) to other microcontrollers(such as Arduinos). The distance will be about 100 meters, and I am looking for the most efficient and quickest way to send information from 1 transmitter microcontro...
By: bigjohn412

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Thu, 5 Jan 2017 11:57:28 PST
Best wireless communication device for controlling 200 microcontrollers? bigjohn412
By: bigjohn412

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Thu, 5 Jan 2017 11:57:03 PST
A firmware acting as emulated storage when connected to a PC? muhammajunaid Hi all, I am working on a project that involves firmware development for a micro controller based device. For the device i want it that when i plug it into a PC's USB port it should interact with the PC's OS and mount the storage on the device as an emulated drive automatically. as it happens for ex...
By: muhammajunaid

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Thu, 22 Dec 2016 20:32:48 PST
Nema 17 max speed? headslant What is the max speed of a NEMA 17 motor like this one? I will use a easydriver+arduino. Would there be a different stepper driver i should use (that is still cheap)?
By: headslant

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Sun, 6 Nov 2016 15:57:11 PST
Determining frequency of processor And AVR O.C. ? _Boltz_ So This question has two parts.... i need to measure the frequency of a computer processor.....and an avr microcontroller........ actually i want to know weather it is possible to connect a arduino to a pc's processor through wires or an avr through wires to a secondary system like an arduino which ...
By: _Boltz_

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Fri, 7 Oct 2016 11:34:50 PDT
what is the c code for temperature indicator using lm35 pic18f uC for range o to 100 degree celcius? Riakjanu I need a c code for temperature indicator using lm35 pic18f uC for range o to 100 degree Celsius..... As lm35 is for -55 to 150 degree to configure or code it for 0 to 100 degree Celsius.......?
By: Riakjanu

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Wed, 28 Sep 2016 07:31:47 PDT
attiny2313 question? artworker Is it worthwhile to make a timer for hydroponics watering using an attiny2313? What level of complexity should I take it to so that I can use it's full capability.
By: artworker

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Sun, 24 Jul 2016 20:39:30 PDT
Fluctuating voltage? IndiraK2 I am trying to build an ammeter using a 100:5A CT and a pic16F716 and display the value using 7segments. However, The voltage I get from the CT after rectifying it using an OPAMP still fluctuates between 4.8 and 5.4 .  I don't understand what is causing it to fluctuate that way. I will attach a pict...
By: IndiraK2

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Wed, 29 Jun 2016 03:30:11 PDT
How to make a mains power AC voltage meter for input as an MCU sensor? britesc Hi, I live off grid and need to keep an eye on various properties from various power sources. This includes, VDC 12-24 from the solar panels, VAC 220 from the fallback generator. VAC 220 from the inverter into the house. I can find off the shelf sensors for the AMPS which can feed into various MCUs ...
By: britesc

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Thu, 23 Jun 2016 04:35:24 PDT
How to drive 3 Phase AC motor using Arduino Uno? amitsanap I am having 3 phase AC motor in farm. I want to control it using GSM. Please tell me how to do that???
By: amitsanap

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Sat, 11 Jun 2016 22:46:28 PDT
How to run an Arduino Due for user defined time? Lakshya1503 i am using an Arduino Due for waveform generation on my Nokia lcd 5110 display.I want to generate the desired wave for a stipulated duration where time is taken as input .Kindly help me with this asap,also include code for the same if possible.
By: Lakshya1503

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Tue, 7 Jun 2016 23:47:53 PDT
How to learn microcontrollers using junk.? kkp7649 How can I learn microcontrollers by using junk products.I have a VCD and it has a microcontroller but I cannot understand the circuit of this.So please give me some easy guides to learn.I am a beginner and I want to learn microcontrollers but I cannot buy any kits to learn this because I belong to r...
By: kkp7649

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Tue, 31 May 2016 04:49:14 PDT
I am in a Process of fixing a INKjet printer on a conveyor. I need to use one encoder, ? ranganathan raju sensors and few stepper motor to run the main machine and the conveyor please suggest? The Inkjet printer - prints variable data ( Manufacturing date cost real time) on a paper moving on the conveyor?
By: ranganathan raju

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Fri, 20 May 2016 07:31:09 PDT
microcontroller on arduino board? manaswini1317 I am a newbie to arduino.I 've learnt atmega328 controllers are used on arduino.I am using arduino smd rev3 can someone please label it for me?  
By: manaswini1317

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Tue, 26 Apr 2016 22:37:05 PDT
how can i connect a pic18f4550 to a pic16f88 using a max485 with details about the wires connection between them? rimchahrour Hello; i want to create a Master-Slave connection between a pic18f4550(Master) and a pic16f88(Slave) using the max485. i need to know how to connect them and how can i program the pics using the proton ide application . then i want to connect the master to a pc using the same mode and i need to know...
By: rimchahrour

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Sun, 24 Apr 2016 15:17:10 PDT
what is solar charge controller?define it's working and abstract and block diagram ? Mansoor Hussain
By: Mansoor Hussain

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Thu, 17 Mar 2016 13:09:31 PDT
professional arrow keypads functions using mikroC compiler and PIC microcontroller? bobx Hello, I want to design a professional arrow 5-keypad functions using mikroC compiler and PIC microcontroller  to navigate on a LCD page or screen so that; a cursor can move UP , DOWN , RIGHT , LEFT  and ENTER (enter and select functions) on the a 20X4 LCD or a T6963C GLCD to select an item on ...
By: bobx

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Fri, 19 Feb 2016 04:59:19 PST
Easy Pi Software Programming Language Recommendation Need? iceng I have a 2011.12 Pi that I was able to Hello On a screen , mouse, keypad, load the appropriate Sandisk from the web. Tried some of the programs and put it away. Now I have a dedicated application that will be running a stepper shield (orbit 4 bacteria tubes) stop every hour and use a 14 bit ADC to ...
By: iceng

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Fri, 5 Feb 2016 11:34:33 PST

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Sun, 17 Jan 2016 02:51:51 PST
How to start with AT89S52 MC? Vijaykum_ar I am new to embedded systems of 8051. i coded At89s52 and dumped my code for blinking LED. when i trying to get out put from a bread board no result dont know where i m doing wrong i m sure with connection fittings and circuit exactly matches with what ever available in internet. i have doubt on m...
By: Vijaykum_ar

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Fri, 15 Jan 2016 01:28:48 PST
Lego NXT motor problem Jugiot I have an NXT 2.0 and am having trouble with the motors. With the wire (which connect LEGO servo motor to NXT) pushed all the way in to the NXT, it can only sense rotation. The motor does not turn (using the built in program feature). If I pull the wire partially out, the motor rotates, but the NXT ...
By: Jugiot

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Sun, 10 Jan 2016 12:54:50 PST
How do I burn a bootloader onto an Atmega1284P? JRV31 I am trying to burn a bootloader onto an Atmega1284P chip. The chip is marked Atmega1284PU. I am trying to follow this instructable: I have tried it on different computers and different installations of the Arduino IDE, Including a compute...
By: JRV31

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Sun, 3 Jan 2016 07:35:30 PST
need help with pickkit 2 TanvirM1 I just bought a pickit 2 and pic16f887.With it I got a dvd .there are 12 lessons for beginners in it.but they are in Chinese language . So i cant understand a thing. can anyone give me download link of those which are in english language? and can also give me any tutorial series for beginners with p...
By: TanvirM1

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Mon, 28 Dec 2015 22:20:02 PST
Interfacing HC 05 with Atmega? Mayoogh_Girish Somebody please tell me the code to turn ON and OFF a Led on atmega8 board using hc 05 Bluetooth module Some what like this
By: Mayoogh_Girish

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Sat, 5 Dec 2015 01:17:06 PST
PIC24 programming troubles? Higgs Boson Hi, I have been working on a board with a PIC24FJ32GA002. The board had the correct voltages on the PIC's power pins (3V). I was able to program the pic one time successfully with my PICkit3, but every subsequent attempt has resulted in the following error message: Connecting to MPLAB PICkit 3... Fi...
By: Higgs Boson

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Sun, 8 Nov 2015 17:17:39 PST
How to program an AVR barebone atmega328? gada888 HI,ALL Now i want to program an barebone atmega328,I searched the net for methods of doing so,the rock that i bumped my head on was the 'boards'file.I bootloadded the chip with ISP method, then found the 'boards file' stating 'barebone atmega328 with internal 8M crystal'.the case i am using is an e...
By: gada888

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Mon, 26 Oct 2015 21:16:27 PDT
Pixel by Pixel Image? seedorfj There are many uses for a pixel by pixel image generated using simple values, however there doesn't seem to be an easy way to do it.  I have used excel and its shading by value feature, but this isn't always the most effective method.  So assuming you have two coordinates and a value between 1 and 1...
By: seedorfj

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Tue, 6 Oct 2015 19:47:55 PDT
When To Start With Arduino? Yonatan24 When To Start With Arduino? Do you think that a 13 year old can start learning arduino? If yes, Where is it possible to learn the "code stuff" for ardiuno Are there any easier arduinos to start with?
By: Yonatan24

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Sat, 3 Oct 2015 23:07:05 PDT
patter for connecting large no. of push buttons and count how many of them are pressed using keil software in 8051 padmjama7 i have to connect large number of push bottons to 8051 using keil. additionaly, i need to count the number of buttons are on. can a keil program along with hardware pattern is availabel??
By: padmjama7

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Tue, 29 Sep 2015 07:18:49 PDT
Will the TTL pins on this GSM module be connected directly to AT89C51 microcontroller? r5sb I plan on using this GSM module with an AT89C51 microcontroller and was wondering whether I needed an extra MAX232 chip since the module has Rx and Tx jumpers broken out. Are they TTL? Could they be directly interfaced with the microcontroller? I have circled the pins in question in the picture. 
By: r5sb

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Mon, 21 Sep 2015 06:50:00 PDT
why my servo works on arduino and not pic microcontroller? omar emad hello, Iam trying to use servo to control the turning angel of RC car , my servo is feetech fs5113m . 1st i tried arduino , using a 5 volt supply voltage "1A" for the servo , which is lower than its actual required voltage , but it was still working perfect, i used the "sweep" in arduino examples ...
By: omar emad

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Sun, 20 Sep 2015 03:10:32 PDT
How do I integrate a PID temp controller into a microcontroller system? danjamesardoin I understand that most PID temp controllers have some sort of interface to change the set-point via buttons or similar controls but I want to control my set-point using a microcontroller(picaxe). I'm not looking to build or program PID control into my system I'm really only looking to integrate an e...
By: danjamesardoin

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Wed, 2 Sep 2015 15:03:52 PDT
Electric Standing Desk Controller for Direct Control? jeyton Does anyone know what the controller is for most of the electric standing desks? I have a Jarvis and it seems that it uses the same controller as the GeekDesk. The box appears to have an RJ11 serial connection that is not used in the desk operation, I am wondering if that is whats used to program th...
By: jeyton

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Wed, 2 Sep 2015 13:48:51 PDT
Having a peculiar issue with the max6675 and grounds? zack247 So first off, this is an application for use in a car. I have ensured that all of my grounds are good, and the power is clean, so I know these are not the issue, at least not on the car side of things. I am trying to get an electric fan controlled by an atmega328 (through a relay), which I have suc...
By: zack247

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Tue, 4 Aug 2015 22:12:49 PDT
How to start into PIC? Snehil1101 Hey friends! Yesterday my uncle gave me an old pic16f72 microcontroller. I am a beginner to arduino and have written few programs myself but PIC is absolutely obsolete to me. I want to ask that is pic a standalone ic to program or it need other hardware. Also in which language are these programmed. ...
By: Snehil1101

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Sat, 1 Aug 2015 00:23:19 PDT
how to make a microcontroller potentiometer control a servo and motors on my rc lorry for rear wheel steer? brummy2002 Hi Guys, Im a keen modeller and build rc 1:14 scale trucks, I'm trying to build a trailer as many have done that uses a potentiometer which is turned when the lorry turns and the trailer follows through the tow pin, this then turns a servo that makes the rear wheels of the trailer steer creating re...
By: brummy2002

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Mon, 20 Jul 2015 13:20:55 PDT
3 wire interface (GND, VCC, DATA)? ikarus6 Hi guys,   I'm trying to reverse the communications on a project I have at the moment which seems to be using a 3 wire serial interface (GND, VCC, DATA).  My goal would be to replicate the communications with an arduino or similar, however i'm not 100% sure what serial protocol it's using.   The de...
By: ikarus6

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Wed, 8 Jul 2015 14:37:50 PDT
How to program pic16f887 with k150 pic programmer ? TanvirM1 Can anybody tell me how can I program pic16f887 with k150? I am new to pic programing. In k150 description they said it can program that I bought them. But i don't know how to program it using that.
By: TanvirM1

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Sat, 4 Jul 2015 04:19:09 PDT
Do I need PIC microcontroller? g6306953 My question is simple - imagine device with a single button (touch, whatever), it is either on (sending signal) or off (nothing is happening). This device is connected through usb to a computer. Do I need, in this device, a PIC (or any) microcontroller? Wouldn't just be sufficient to create a driver...
By: g6306953

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Fri, 3 Jul 2015 01:10:17 PDT
How to program ATMEL AT89S52 chip? miguelfsky Hello. I'm new in forum. I buy a DIY Kit Secohmmeter Capacitance Meter Inductance Meter Frequency Meter, but the chip have no code. The vendor send me a link to download the schematic and the code in C and inn hexadecimal. But I don't know how to code the chip, the board have UAB_ASP connection. If ...
By: miguelfsky

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Wed, 17 Jun 2015 13:54:21 PDT