A simple sensor to measure conductivity changes in water and other materials!
by Jen Fox and Hacking STEM
Library to use I2C PCF8575 IC with Arduino and ESP8266. This IC can control until 16 digital devices like button or LED with only two pins.
Expand your board's storage with an I2C-enabled EEPROM chip.
by Arduino “having11” Guy
Step by step on how to program a ATtiny85 microcontroller with Arduino Uno development board.
Project tutorial by Arjun Ganesan
Make your hardware push data to a Google spreadsheet.
by Gustavo Gonnet
Regulated smart constant current charger for 9V NiMH rechargeable batteries.
Project tutorial by Alex Stepanov
Arduino's great, but how in the world do you do two (or more) things at once on separate intervals? You need protothreading!
Project tutorial by Drew Alden
Clock LCD display adjustable.
Project tutorial by Tittiamo
Program your Arduino with an Android device over Bluetooth HC05.
Logic Analyzer, for Arduino, other AVR and STM32 with a very nice working processing interface, you could run it also on any Android device.
Project tutorial by Vincenzo G.
Simple Arduino Uno - ESP8266 software serial integration.
Project tutorial by circuito.io team
Using a phone as a makeshift GSM module.
Project tutorial by Dante Roumega
If you can't find a voltmeter at home or anywhere else, then this hack is for you!
Project showcase by Team Next Tech Lab
Task scheduling is a transformative way to write maintainable code for Arduino and other AVRs. No more spaghetti code. C++ tutorial.
by Kevin Gagnon
Based on Blockly and BlocklyDuino, here's a multilingual enhanced version with supervision, upload, multi-level blocks, etc.
Project tutorial by LibrEduc
A single Arduino Uno/Mega can carry up to 14 RS-232 boards. Each board is distinguished by ID, which is set via a DIP switch.
Project showcase by phpoc_man
An Arduino powered floppy disk controller and reader/writer for making and writing disk images from and to old AmigaDOS floppy disks.
Project tutorial by RobSmithDev
Take your Arduino Codes to the next level with easy auto completion and documentation in Visual Studio, it's very simple & fast.
by Ahmed Hamdy
Learn how to submit your Arduino-based project. It may even get featured on the Arduino social channels!
Learn programming ESP8266 with Arduino Boards. Installing ESP8266 board to Arduino Boards manager and uploading sample program to ESP-01.
by Harsh Mangukiya
In this tutorial, I will show you how to install the dark theme for your Arduino IDE for the reason of overexposure to the screen light.
Project tutorial by the lonely programmer
The cheapest micro soldering station in the world, using a cheap USB soldering iron.
Project tutorial by Paulo Bruckmann
We will teach you that it is possible to write only one Serial.print line to display several messages.
by 3 developers
Standalone Arduino 6-channel triggered oscilloscope with optional freeze frame.
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