The esp32 is a small 32 bit realtime microcontroller with 160mhz of processing power, several megs of flash and last but not least, bluetooth and wifi that’s available for about $6 a pop and can be programmed using both the Arduino language and MicroPython. Today we’ll be going through the setup procedures including how to flash firmware, getting your code onto it and the available peripherals and ecosystem. What esp32 should I buy?