Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — ...

Setup Arduino IDE Install ESP8266 board package via Board Manager Select correct board: Arduino Uno dan NodeMCU 1.0 Upload Code Upload arduino_sender.ino ke Arduino board Upload nodemcu_receiver.ino ...

This is for communicating to an Arduino via serial port. I can use this via RaspberryPi or my laptop. I wanted to store this code so everyone can find this easily (And so I can find this easily).

Posted in Arduino Hacks Tagged arduino, data, library, packets, serial ← Run Kindle 3 Firmware On Kindle 2 Hardware Modular Synthesizer Is Rack-mounted And Reconfigurable → ...

Well tech tinkerer Joe Desbonnet has whipped up what he dubs "poor man's NFC" using an Arduino, some magnet wire, and any compass-equipped Android smartphone (which is almost all of them).