Yesterday, the ESP32 branch released a new update and began to support the hardware I2C method.
https://github.com/micropython/micropython/commit/a29334761dc7b8eaf9f78611e3cd9033928b110cfrom machine i
Recommend several TI chips
TMS320LF24xx: TPS7333QD, 5V to 3.3V, maximum 500mA.
TMS320VC33: TPS73HD318PWP, 5V to 3.3V and 1.8V, maximum 750mA.
TMS320VC54xx: TPS73HD318PWP, 5V to 3.3V and 1.8V, maximum
Designing a ZigBee application for use with an energy harvesting source presents many challenges. One of the most difficult harvesters to work with is a self-powered switch, as very little energy is g