ESP32-H2 FireBeetle?
Occam 2025-11-15 22:42:11 12 Views0 Replies Has DFROBOT considered creating an ESP32-H2-based FireBeetle?
Compared to the C6, it has about half the sleep current, active current, and RF transmit current.
With an otherwise low-current board design, the H2 deep sleeps at about 9 uA
For battery-operated Zigbee and Bluetooth sensors, that's a huge improvement
It wouldn't need the GDI connector or battery charger (I charge standby LiPo batteries using a separate device and swap when needed on my sensors), and a simple voltage divider to measure battery voltage with an I/O-controlled low-side switch to enable/disable the divider's connection to ground would result in an inexpensive, power-efficient Zigbee sensor board
The latest Espressif Arduino library has very good support for Zigbee
A nice additions would be a QWIIC connector and a Vbatt→5V boost regulator with enable/disable to power 5V sensors and some 5V-tolerant digital and analog inputs for the NC pins on your boards.
I think this would make the perfect sensor board host

