One port to role them all.
by Tal O
A simple method to notify a problem is to use email, It’s very usefully and simple to share, so I created a library to do it.
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.
Nano 33 Sense BLE is loaded with environment monitoring sensors whose data can stream over using Bluetooth or WiFi communication protocols.
by Matha Goram
A simple sensor to measure conductivity changes in water and other materials!
by Jen Fox and Hacking STEM
Expand your board's storage with an I2C-enabled EEPROM chip.
by Arduino “having11” Guy
Writing only Arduino code, it is easy to set up control over experiments and display results on your PC's panel application.
Calibrating Atlas Scientific's EZO pH sensor using Arduino Uno.
by Atlas Scientific
Calibrating Atlas Scientifc's EZO D.O sensor using Arduino Uno.
An ultimate tutorial for beginners on how to connect and use an ESP8266 via Arduino and program it to blink an LED using the Blynk app.
by Inventor Niv
Today we are going to learn about touch switch based on TTP223.
A simple project, involving transferring value of a sensor, which is connected from one Arduino to another, and getting a required result.
by Chandran N
This project will show you how to transmit variables to control a servo motor.
Three different way of connecting a push button with an Arduino microcontroller.
Here I want to tell you how to make incremental encoder from stepper motor.
In this tutorial, I am going to talk about the PCF8574 8-bit GPIO port extender.
How to go from theory to a practical working prototype.
by Marc De Loor
Did you ever get into a situation where you had to wire up two, three or more I2C sensors to your Arduino just to realize the limitation?
In this project, I am going to make a LAN cable tester with just a few basic electronics components. It cost me just a bit over $3.
How about we connect an Arduino to our mobile browser, run Node-RED and Johnny-Five on the browser.
by Ron Dagdag
This is my 4th tutorial on how to drive a RELAY (not a relay module) with an Arduino.
You can use the reset button of the Arduino Uno shield like a push button. The data stored at SRAM and will keep after reset.
Educational toy project to show how to write a simple object oriented state machine with your own class hierarchy.
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