i2c - Noise on I²C when bit-banging but not with built-in I²C (ATmega328PB) - Electrical Engineering Stack Exchange
A Simple Guide To Bit Banged I2C On The 6502 | Hackaday
8bit i2c - non standard slave device with no r/w bit - Networking, Protocols, and Devices - Arduino Forum
microcontroller - What is bit banging - Electrical Engineering Stack Exchange
Bit Banging I2C on Mid-Range MCUs with the XC8 C Compiler
Bit Banging With Raspberry Pi for I2C Control With Perl : 5 Steps - Instructables
Bit-Banging I2C with ResetBus() Functionality | MCU on Eclipse
GitHub - tobajer/i2cbitbang: The bit-banging version of i2c for STM32F4 with possibility to create many i2c ports (limited by GPIO number). It supports clock stretching and different speeds according to standards.
GitHub - juhovh/esp-i2c: Another bit banging I2C library for ESP8266