For the module to work with arduino:
- REST pull up 10k
- CH_PD pull up 10k
- GPIO2 pull up 10k
- GPIO15 pull down 10k
To enter programming mode:
- Pull GPIO0 down
- Pull REST down
- Release REST
- Release GPIO0
At 1 Hz updates on a WPA2 network it draws about 150 mA. Ran for an hour on a LIR2450 battery.
Last update:
November 8, 2020