esp8266 – esp32

A series of low cost 32 bit CPUs with built-in WiFi hardware and software. They are available as cheaply as under $2 for a module to $25 for a Dual Core esp32 Development board. They have a variety of built-in functions such as WiFi, I2C, SPI, I2S, Bluetooth on the esp32, and various I/O pins with PWM, Analog, and Digital functions, they also include various built-in timers.

I will be using Arduino Software, Micro-Python, and eForth on these CPUs.