ESP32 The ESP32 chip is older and consumes more power than the nRF52 chip, but is equipped with both WiFi and Bluetooth. Supported ESP32 devices include:
ESP32 MCU supports both wifi and BT. Higher power consumption though.
In general, as this network is supposed to provide alternative comms when regular networks break down: how reliant on battery / solar powered devices is the network?
The width of the main power traces should be no less than 25 mil. The width of VDD3P3 power traces should be no less than 20 mil. The recommended width of other power traces is 10 mil.
power traces
If the PCB antenna cannot be placed outside the board, please ensure a clearance of at least 15 mm around the antenna area (no copper, routing, or components on it), and place the feed point of the antenna closest to the board
how to cutout under antenna
Useful comparison table.
Poor sate of logging lib in ESP32 Arduino platform.