Electronoobs created few weeks ago a nice tutorial on YouTube how to use ESP8266 with arduino to control home appliances or read sensor values from anywhere. His code was too big to be upload on arduino UNO or NANO (ATmege328P). It was necessary to use arduino MEGA. "Full version" of Electro... view more

• Arduino
• ESP8266
• Electronoobs
• save RAM
• use PROGMEM
• F() macro
• init() or begin()
• I2C LCD initialization

Well, have you ever bought a boost converter / step up converter from China for so cheap (0,27€ (Aliexpress)), that you thought it can not be working? And when it came your thought was confirmed. But nothing is how it looks like. On the PCB are just few components, reverse engineer it would not... view more

• Boost converter
• Step up