Arduino

Great Reads

GFX Forever: The Complete Guide to GFX for IoT

by honey the codewitch

GFX is a fast and full featured replacement for standard IoT drawing libraries that is optimized to reduce bus I/O

A Complete Anti Theft Homemade Surveillance System

by Miguel Diaz Kusztrich

Be notified in your mobile phone of intruders in your home, and take photos of them

Lightning Never Strikes Twice? Maybe Blitzortung knows!

by DaveAuld

Building for and consuming the Blitzortung Lightning Detection Network

Practical Electronics for Makers (Part 4 of N)

by raddevus

Chapter 4 - Resistors and Resistance

Latest Articles

Dynamically Updating Firmware from Arbitrary Sources on an ESP32

by honey the codewitch

Do you need to be able to perform a firmware update without using WiFi? This project is for you.

ttgo_clock: An Internet Enabled Retro Digital Clock

by honey the codewitch

Just a clock with snazzy digits that syncs using NTP and gets your timezone from your IP.

A DIY Bluetooth LE to WiFi Bridge

by deangi

A Bluetooth LE scanner gathers data on a schedule from one or more BLE servers and forwards it to WiFi.

Tetris Wall Art for Arduino

by honey the codewitch

Display automated (optionally controllable) Tetris on an LCD or Neopixel panel

All Articles

top

Arduino

Make web server and database embedded on MCU,What should I choose between Raspberry Pi and Arduino?

25 Sep 2014 by 2irfanshaikh

Raspberry Pihttp://www.raspberrypi.org/documentation/remote-access/web-server/apache.md[^]http://www.instructables.com/id/Raspberry-Pi-Web-Server/[^]

Arduino

Raspberry-Pi

Sprintf(topic, "%s%s", "/v1.6/devices/", DEVICE_LABEL);

25 Feb 2023 by 751-Atharva Vanjole

Compilation error: missing terminating" character? Whats wrong in this What I have tried: Remove " this added " this but doesn't happen anything

Arduino

Call C# to Javascript in ASP.NET

15 Mar 2014 by Abhinav S

You can register client side scripts and run server side scripts on the page.For e.g. How to: Add Client Script Dynamically to ASP.NET Web Pages[^].

Javascript

Arduino

ASP.NET

AES arduino encrypted codes decrypted into C#

19 Aug 2023 by adriancs

I have just published an article exactly answered this question. I know my post it's a little late to the party, but anyway, here's my article. cheers AES Encrypted Data Transmission between Arduino (ESP32) and C# (ASP.NET)[^]

Arduino

cryptography

AES Encrypted Data Transmission between Arduino (ESP32) and C# (ASP.NET)

19 Aug 2023 by adriancs

Communication between Arduino and C# (ASP.NET) by using AES encrypted HTTP GET request

Calling a function when UDP data recieved.

20 Nov 2018 by Afzaal Ahmad Zeeshan

You need to attach the async callback1, that receives the data for your socket, on its behalf and then alerts you that data has been received. You cannot attach a receive function, as it might be blocking. You can argue, that, // Your receive call is useless as well, and so would be this, ...

Arduino

UDP

How to implement MySQL DB functions with Arduino

18 Dec 2015 by Ahmed Alnesser

How to implement MySQL DB functions with Arduino like insert update delete select

Arduino

MySQL

Windows Phone does not receive string from arduino bluetooth

15 Aug 2015 by ahmetkocadogan

Hello. This is my scenario, i have an arduino uno and a hc-05 bluetooth module. i use software serial for hc-05, this is my arduino code:(from this link : http://stackoverflow.com/questions/18376468/arduino-using-serial-and-software-serial-with-bluetooth-module[^])#include...

Windows-Phone-8.1

Arduino

Bluetooth

How to control arduino in C# ?

9 May 2017 by AkhileshKamate

Refer below link Controlling Arduino With Windows Form Application[^]

Arduino

Turn on LED based on condition which has been satisfied through a Python program.

22 Nov 2021 by AL HANA T

I want to turn on my LED connected to arduino board once it satisfies any condition provded in my python program. These are the conditions: Temperature 179: Observation= 'Temperature & Humidity is less.' ...

Python

Arduino

How to write C# serial port communication by bluetooth

31 Jul 2020 by Alisher Abdisattar

Hello everone! I need to communicate an arduino and windows through bluetooth by application in C#. I do not know how to do C# programm. I can make GUI in WinForm. Can you suggest me some tutorials, books, guides to learn C# serial port...

Arduino

Bluetooth

AES arduino encrypted codes decrypted into C#

10 Dec 2018 by alisolution

Greeting, I want to codes which create Encryption in Arduino-C and can be Decrypted into c#. is it possible ? Using algorithm AES or any other an algorthim anyone help me, can provide codes AJ What I have tried: #include "AES.h" #include "base64.h" AES aes; void setup() { ...

Arduino

cryptography

Integer Square Root on 15 Assembler Lines

5 Jun 2019 by altomaltes

This code calculates square root of an integer on a few assembler code lines.

How drive led panel board using arduino

17 Oct 2014 by Amal anjula

Hey guy. i need drive 64*32 led panel board using arduino. im used arduino for make some different message into display board. that message coming via Bluetooth module(hs05) from the mobile phone. how do this. please help me. i only need drive led panel using arduino. sorry for bad english ...

Arduino

how send gmail using sim 900 min

15 Jul 2015 by Amal anjula

i have sim 900 mini module with arduino uno. now i want send gmail using arduino only using at commands? how i do this. pls hep methis is my code#include SoftwareSerial mySerial(10, 11); // RX, TXbool ack=0;void setup(){ // Open serial communications and...

Arduino

how put varible in to HTMlL code in arduino

12 Nov 2015 by Amal anjula

i made some code for esp8266 wifi module using AT command. this is working normally. but i cant put some varible in to this code. how i do it. i had 6 integer type varibles.this is the code#include #include #include SoftwareSerial...

HTML5

Arduino

How convert hex to ascii in arduino

19 Feb 2016 by Amal anjula

i had below Hex value from serial Rx...

Arduino

Help me connect my arduino ethernet shield with my laptop using java

18 Feb 2018 by Amanuel Negash

I am trying to connect my arduino ethernet shield and a java application to communicate. I could not achieve that any one can help. this is my java code /* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates *...

Java

Arduino

Help me connect my arduino ethernet shield with my laptop using java

19 Feb 2018 by Amanuel Negash

nothing really happens the java client ends saying the Error:java.net.SocketTimeoutException: Receive timed out

Java

Arduino

How can I shorten code in arduino

28 Jul 2023 by Andre Oosthuizen

Concentrating on your 1st block of code, you can create a function that takes the 'prog' string, the index 'i', and the 'onOff' values as parameters - #include #include //Function based on your input parameters... void...

C++

Arduino

Build a Raspberry Pi powersupply with Digispark Attiny85

28 Dec 2016 by Andrew Lai

Power on, safe shutdown and power cut-off for Raspberry Pi

Python

Arduino

Raspberry-Pi

Arduino Uno and Unity Web Player

12 Mar 2014 by andry fajar

Please help me,I've been approached frustrated how to serial communication arduino uno with unity web player? can i see an example of the source code?

Arduino

Unity3D

Call C# to Javascript in ASP.NET

15 Mar 2014 by andry fajar

Please help me,how to call a public void (BlueOn) in c # to javasript (StartBlink) in asp.net?C#namespace ArduinoTest{ public partial class LEDTest : System.Web.UI.Page { SerialPort ardo; protected void Page_Load(object sender, EventArgs e) {...

Javascript

Arduino

ASP.NET

Send Data From Arduino to ASP.NET

21 Mar 2014 by andry fajar

Please help me ,I have a problem regarding valiable calling from c # to javascript in asp.net .how to perform real-time retrieval of Arduino uno without wifi shileld through C # then passed to the javascript that will be displayed on the web . where the transmitted data is worth " 0 " and "...

Serial Port Automatically

25 Mar 2014 by andry fajar

I want to asked, how to automatically create a serial port in unity? there any sample source code.Thanks

Remote Residential Lighting - Part 1: The Prototyping

9 Dec 2020 by André Marcos (Advisor), Gabriel Trepak, Vinícius Barauna Santana

Automating the Residential Lighting Activation Process Using Arduino

IoT Device for Predicting and Identifying Problems in a Datacenter

25 Jul 2021 by André Marcos (Advisor), Luciano Santos de Jesus

Automation with Arduino Prototype for an Alarm Device based on Audiometric Sounds Pattern Control

C++

Arduino

automation

I need to transmitt a data from arduino to another arduino at range of 10 meters wireless

4 Oct 2017 by Anilkumarkomalla

i need to transmit the height of the copter for that i have used ultrasonic setup and measured the height displayed in lcd so i want transmit it wireless to the laptop at a range of 10 meters away from the my arduino set up What I have tried: so i used esp8266 transceivers for transmitting and...

Arduino

CakeRobot - A C#, Arduino, Kinect Robot That Follows Your Gestures

22 Oct 2013 by Anoop Pillai

CakeRobot is a gesture driven robot that moves around based on your hand movement.

Arduino

Kinect

robot

How to access home LAN from mobile network？

4 Sep 2016 by aolin.wang

Excuse me，all my friends.I want to do a small project as my graduation project.It is controlling a robot car with camera by my phone.Like this, i can see my home in everywhere, only having mobile network.My idea:phone←→mobile signal base station←→internet←→home network service...

Error in adding element into an array

16 Apr 2017 by Arnold bin Boon Hoo

hello, I am doing a project of arduino to control the relay switch by using the CapacitiveSensor i found that there is some error on my array. not sure is there any problem in my setup for array please advice thank you, I am still new in c++ programming What I have tried: #include...

C++

Arduino

how to trigger vb by arduino

18 Jun 2013 by arnoldxx

hello guys.. i wondering is there any wrong with my code since i try to run it just now and noting happencode of arduinoconst int threhold = 100;int sensorReading;int irs=0;void setup(){ pinMode(irs, INPUT);Serial.begin(9600);}void loop(){ sensorReading =...

VB10

Arduino

problem with sending and retrieve data by serial port

20 Sep 2013 by arnoldxx

hello matesim now making a source code of visual basic and also arduino..and communicate with each other by serial porti have successfully make 2 arduino code.. one is for sending data to vb.. and one is for retrieve data from vbbut the problem is when i try to combine itand run the...

C++

Arduino

One tcpclient connected to multiple servers

5 May 2017 by Arvind Zamakia

i think you can used SignalR [^]

Arduino

Turning 360 degrees a 4WD chassis without any encoder

6 Aug 2018 by askis

Manage the rotation degrees of your 4WD chassis

Arduino

communication between gsm300 and arduino

19 Mar 2013 by ayush44

hi, i want to communicate between gsm300 and arduino so i wand the receiving code for arduino for msg and call both.thanks

Arduino

Link-Time Optimization and Debugging of Object-Oriented Programs on AVR MCUs

6 Jan 2022 by Bernhard Nebel

Link-time optimization and debugging OO programs do not work very well together, at least on AVR MCUs.

SingleWireSerial - Arduino Library that Supports Single-Wire Half-Duplex Serial Communication

12 Jan 2022 by Bernhard Nebel

New Arduino library: SingleWireSerial which supports single-wire, half-duplex serial communication

Arduino

Debugging an Arduino project with GDB on Classic ATtiny and Small ATmega MCUs

12 Mar 2022 by Bernhard Nebel

A tutorial for people who finally want to debug their Arduino projects that run on AVR MCUs using the GNU project debugger GDB

Zkemsdk SDK unlock door

19 Oct 2020 by BillWoodruff

first do some research on CodeProject: [^], and Google: [^] And, of course, look for documentation on the "boom" hardware from the manufacturer.

Arduino

Reading data from arduino to Visual Studio Console

21 Jul 2014 by bling

If you want text to appear inside the Visual Studio Output window, Diagnostics::Debug::WriteLine does the trick. Otherwise, use Console:WriteLine (which you seem to be using).Looking at your code, you've got two problems.1. You aren't reading anything from the serial port.2. You're...

C++

Arduino

i want to make an HID?

30 Jul 2014 by bling

Two ideas ...1. create a serial mouse. Most micro-controllers can be made to use RS232. If Windows will accept a serial mouse connected to a USB/serial adapter, then an Arduino should also work.http://arduino.cc/en/Reference/MouseKeyboard[^]2. Use the same Atmel processor as the...

Arduino

Windows

mouse

Netduino Communication with Arduino Due

6 Aug 2014 by bling

> Netduino communicates with the Arduino DueTwo solutions:1. Communicate through host PC ... Netduino Ethernet Host PC Arduino Due.2. Direct serial ... Netduino three wires (RxD, TxD, Gnd) Arduino Due. Connect RxD on Netduino to TxD of Due; connect Txd of Netduino...

Arduino

.NET

start stopwatch after recieving signal from arduino hardware

24 Mar 2015 by bling

Yes.In windows, the serial port is buffered so there will be a delay before the data is passed to your application. It is also possible to designate an event character on the port. When the serial port receives a byte matching the event character - it stops waiting and returns any...

Arduino

How to solve this problem ? I get this message whenever I compile it in arduino compiler ? expected initializer before '-' token

13 Jul 2022 by bonezegei

#include int PulseSensorPurplePin = A0; //not =0 since you are reading Analog Value the value 0 for input pin is at Digital pin 0 "A0" is used instead int Signal; int Threshold = 550; //variable should be initialize this way i...

C++

Arduino

Why is he reporting error: expected unqualified-id before '.' token ds1307.getdate (datatime)

13 Jul 2022 by bonezegei

This was an old question but this might be the solution to that Maybe ...... int DataTime[7]; DS1307 rtc; //this should be declare like here char times[32]; //the array containing the string of time should also be...

Arduino

Embedding Google Maps into a Windows Form Application

11 Jan 2019 by Boris Kudryavtsev

Hello,I need help on writing a Windows Form Application in C++, which does the following:1. Use Google Maps (satellite view) to find 2 Latitude Longitude coordinates entered by the user and zoom in on the section of the map located between them. 2. Click in a series of consecutive...

C++

Arduino

Google-Maps

Beginner's Guide to using the Bluetooth HC-05 Module with an Arduino Uno

30 Jun 2018 by Brad1141

How to send data from a TMP36 to a Bluetooth terminal using the HC-05 module

Arduino

Bluetooth

Your Electronics Reference

18 Feb 2015 by Brisingr Aerowing

A list of electronics-related links.

Arduino

Raspberry-Pi

electronics

DIY: Building a Dryer End-of-Cycle Notifier with the MediaTek LinkIt™ ONE

28 Aug 2015 by Carey Payette

This article will cover the development of a simple device that will text message the owner when the dryer cycle has ended.

Arduino

IoT

SMS

MediaTek LinkIt™ Smart 7688 Duo Review – The Making of a Refrigerator Monitor

19 Apr 2016 by Carey Payette

LinkIt Smart 7688 Duo - a good board for anyone needing to develop quick IoT prototypes that also wish to continue into the manufacturing and delivery phases of their new product.

Getting Started With Arduino

9 Nov 2014 by charankumar516

Absolute Beginner's Guide to Arduino

Arduino + Visual Basic

23 Mar 2013 by CHill60

Honestly - do some research firstTry looking here[^]

Arduino

Rest webservice consume in VB .NET

4 May 2016 by CHill60

You need to do some research. Start here - Google[^]

Arduino

CmdMessenger

2 Apr 2015 by ChRi$m0rG@N

An article about an omni directional Arduino Yun robot, and an alternative .Net implementation of CmdMessenger

CloudCooker - IoT Temperature Controller

11 Feb 2020 by Chris Gannon

An Azure-driven service for Arduino based PID controllers designed for control and monitoring of grills and other cooking devices

Falling Blocks on an Arduino Nano with 4x 8x8 dot Matrix

19 Aug 2020 by Christ Kennedy

Here's how I made a game of Falling Blocks with my Arduino Nano, a clothes hanger and some duct tape

C++

Arduino

DevOps

Arduino - Exercise Reps Counter with Analog Voltage Divider Button Controller

25 Sep 2020 by Christ Kennedy

An Arduino project that keeps track of your best Workout times and rep-counts

Arduino

hardware

DevOps

Matrix Voltage Divider Button Calculator for Microcontrollers

4 Dec 2020 by Christ Kennedy

Interactive interface helps generate resistance ratios for button matrices of various sizes

Arduino

Simone Says

11 Mar 2021 by Christ Kennedy

The classic electronic game brought to you by Arduino Micro Pro

C++

Arduino

Arduino Home Distillery

18 Dec 2021 by Christ Kennedy

Distil hand-sanitizer and other social lubricants using an Arduino

Arduino

Arduino Kitchen Timer & Thermometer

22 Aug 2021 by Christ Kennedy

How to keep your KD from burning in the pot

C++

Arduino

Dev

Arduino - KVM Remote

5 Feb 2022 by Christ Kennedy

Build a remote control for a cumbersome wire tangled KVM that fits better hidden under your desk

Arduino

Dev

Get my sensor to update its shadow onto AWS

8 Feb 2023 by Corey 5

I have repo code that I am working on as part of an internship that they have me trying to get to work with a sensor. When I load the code and upload it it doesn't seem to want to update the shadow onto AWS. The timestamp appears but the sensor...

Arduino

Help with Serial COMM in C

27 Nov 2012 by CPallini

Why don't you use Visual C++ (you may even use C#) Express Edition?You may use the following code sample for configuring correctly the COM device:"Configuring a Communications Resource (Windows)"[^] and the simply issue CHAR c='1'; // change to CHAR c=1; if appropriateDWORD...

Arduino

Windows

serial-port

how to trigger vb by arduino

18 Jun 2013 by CPallini

You are sending (Arduino side) string values and checking (on VB side) for integer values. Instead you should either:send integer values (e.g. Serial.Write(1)) and check for integer values.orsend string values and check for string values (e.g. if str = "0" ).

VB10

Arduino

Upload .ino files to Arduino mega from C# .NET web application

5 Sep 2014 by CPallini

Have a look at this Code Project article: "Arduino, C#, and Serial Interface"[^].[update]If you really need to reach the Arduino boar d via network then let's start from this page: Networking Options for Arduino-Based Systems[^].[/update]

C#3.5

Arduino

ASP.NET

How to read txt file IN LINE from SD card?

15 Sep 2014 by CPallini

From File class documentation[^]:read()Read a byte from the file.Hence, in order to read line by line you have to detect the end-of-line character (could be, for instance '\n'). Note you can do that either on Arduino side or on the PC one.

C++

Arduino

How can I read from COM port in Windows using C?

20 Sep 2014 by CPallini

Check out the documentation: "Communications Resources" at MSDN[^]. "Using Communications Resources"[^] provides code samples.

How drive led panel board using arduino

17 Oct 2014 by CPallini

(Assuming you are able to handle the bluetooth mobile-Arduino communication). You must check out the LED panel documentation, because you need to:Properly wire the led panel to your Arduino boardDevelop the Arduino communication routine according to the protocol required by the LED panel

Arduino

plot multiple graph using arduino

11 Jun 2015 by CPallini

It all depends on your 'real time' requirements, that is on the speed analog data is collected by the arduino device (an transmitted to your PC, data transmission could be the actual bottleneck). I would use the the language offering the more high level features (and richer library) the...

C++

Arduino

processing

how send gmail using sim 900 min

15 Jul 2015 by CPallini

You'd probably have to post your question on arduino or, better, SIM900 specific forums in order to get help. The SIM900 is really a strange beast.

Arduino

Sending message from sim to website

23 Jul 2015 by CPallini

Then make HTTP custom request. See "SIM900 GPRS/GSM Shield"[^].

is it possible to create a program for arduino?

30 Jul 2015 by CPallini

Yes, I guess.Moreover I guess Google could help: "arduino tutorials"[^].

How do I connect 2 arduinos via two NRF24L01

31 Jul 2015 by CPallini

As far as I know you have to use a specific library in order to obtain meaningful data from such devices. Have a llok at this page "nRF24L01"[^].

Arduino

wireless

socket program get hangs C#

23 Nov 2015 by CPallini

It hangs because receive is a blocking call: if there is no data to receive then it waits. This is the reason why it is usually invoked in a separate thread.[update]Have a look at "Asynchronous Client Socket Example" at MSDN[^].[/update]

Arduino

bytes

sockets

serial communication problem between Arduino and pc

20 Jan 2016 by CPallini

Your Arduino code sends a byte at time (see Arduino - Write[^]), so your PC code should read a single byte and output it (it could optionally read multiple bytes, buffer and then output all of them), so the proper call to ReadFile (I hardly believe you need the OVERLAPPED struct in such a simple...

C++

Arduino

How convert hex to ascii in arduino

19 Feb 2016 by CPallini

Your arduino board is receiveing somthing like:"is message was sent to you by 10-Strike Network Monitor for the "probably encode as UTF-16. Since it is just a piece of the message it is difficult to understand the byte order (big or little endian).Empirically, you may build your string...

Arduino

Sir I am using sim 900 gsm for making a cheap iot device.whether gsm sheild library and program work for gsm /gprs modem

27 Jul 2016 by CPallini

The SIM900 is the just modem chip, you usually find it on modules (e.g. the Arduino SIM900 shield). Your firmware will send AT commands to the modem. You may find the documentation as well tutorials available online.

Arduino

How do I split a char array with arduino

2 Dec 2016 by CPallini

See here: serial - How do I split an incoming string? - Arduino Stack Exchange[^].

Arduino

GPS

How to match only one arduino and C#

1 Mar 2017 by CPallini

It is not clear what are you trying to do. Why do you list all the serial ports available, claiming they are open, without actually checking their state?Then you open last one, read existing characters and discarding them.Finally you try to read 3 lines from a rich text box, and get the...

Arduino

How to clear serial data in arduino using C#?

8 Mar 2017 by CPallini

It is not clear what do you really want to do. Anyway, please note: In your C# code, if you enter, for instance, "1" in your TextBox then four bytes are sent to the serial line: three 0s and a single 1 (the 0s won't be handled by your Arduino code).In your Arduino code you didn't check if...

C#6.0

Arduino

How can we detect the blinking LED in the control panel using sensor

20 Mar 2017 by CPallini

You may find many examples on the web, see, for instance: DIY Arduino Pulse Sensor[^].

Arduino

How can I control a motor with arduino ?

22 Jun 2017 by CPallini

Quote: How can i control two motors through arduino ?? By reading and understanding the controllers' documentation.

Arduino

Visual-Studio

How to read a XML file in ARDUINO uno R3 for linear position motor control?

5 Jul 2017 by CPallini

Why possible it is not recommendable, in my opinion, to make a XML parser for Arduino. I suppose you should go the way opposite: that is find (or invent) a protocol which the Arduino side could easily understand and rewrite your C# program in order to send commands using such a protocol.

XML

Arduino

Visual-Studio