“After having difficulties with the Adafruit Feather ESP32 and static discharge sensitivity, I needed to find a suitable alternative for my previous, current and future ESP32 based projects.
After testing a variety of ESP32 boards (none of which exhibited the static discharge sensitivity), I ultimately selected the “Heltech WiFi Kit 32” board (available on line). The board features a micro usb port for programming and charging, a JST 1.25 mm 2 pin connector (note this connector is smaller than most JST connectors I’ve used) and charger for a lithium battery , wifi, bluetooth, and an on board 128 by 64 OLED display, all for around $17.00 USD.
My first project for this board was to port a wifi network scanner I had developed for previous projects (the source code for the port is included as an Arduino .ino file). Most of the display samples I located for this board utilized a software implementation for I2C communication with the OLED. The included source code uses the hardware I2C for communication with the OLED.
I’ll be porting more of my Feather applications to this board.”