ESP-IDFを使って、I2Cをサクッと実装しようと思ったら、理解があいまいで想像以上に時間がかかって、泣きそうになったので、ここでまとめておく。 I2CのArduino FrameworkとESP-IDFの違い I2CのESP-IDFのVer.4系とVer.5系の違い 構造体のC++とC言語での初期化の違い ...

The I2C (Inter-Integrated Circuit) bus is a synchronous serial communication protocol that allows multiple electronic components (sensors, displays, memories, etc.) to be connected within the same ...

This library is written to use the NXP PCF85263 RTC. The functionality implemented is just basic date time retrieval. The device can run in a stop-watch mode. The range goes up to 999 999 hours, which ...

The purpose of this project is to develop a sniffer for the I2C BUS that can capture at 400 KHZ. For 100 Khz, it is possible to use bit-banding (IRQ or Polling) with an 8/32 bit processor, for example ...

A lot of great ICs use I2C to communicate, but debugging a non-working I2C setup can be opaque, especially if you’re just getting started with the protocol/bus. An I2C bus scanner can be a helpful ...

If you’ve ever been laying out a network I2C devices inside a project box or throughout your robot’s body, you’ll probably know that I2C is not without its pitfalls. But for many of those pitfalls, ...