GitHub

Serial.print as HEX should ALWAYS print 2 chars per byte; it omits leading zeroes

What steps will reproduce the problem? 1.If byte or integer variables are printed with serial.print or serial.println with the HEX output format option leading zeroes are not printed: byte reading5 = ...
EDN

Read Temperatures using I2C, TC04 sensors and Arduino

This articles describes how you can use I2C (TWI) communication, Arduino and temperature sensors to measure 3 different temperatures. It can be very helpful when you want to measure the outside, ...
GitHub

Serial.print() in WiFi event handler can hang ESP32-S2 (repro case included)

I'm using my own ESP32-S2 board, but probably any ESP32-S2-based board with USB would reproduce this. (I can pick up a generic dev board and try there if desired.) It's probably important to be using ...