We’ve looked at the WROOM-DA module before. It’s an ESP32 with two antennas, and [Andreas Spiess] says it is the ugliest ESP32 he’s ever seen. But beauty is only skin deep, after all.

The “ESP32 development board” that you usually get from eBay is a small and convenient generic breakout board with ESP-WROOM-32 module installed, exposed I/O pin headers, and a few additional ...