Use D8 for DS18B20 prevents boot

rvdbreemen / OTGW-firmware

A ESP8266 devkit firmware for the Nodoshop version of the Opentherm Gateway (OTGW)

MIT License

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Use D8 for DS18B20 prevents boot #123

Closed fhennies closed 2 years ago

fhennies commented 2 years ago

I just discovered that using D8 (GPIO 15) toconenct a DS18B20 with the recommended pull-up prevents boot. I haven't investigated much further, but it seems that GPIO 15 is involved in bootmode selection at start-up. Maybe the wiki could be updated with this information: https://github.com/rvdbreemen/OTGW-firmware/wiki/Using-DS18B20-sensor-with-ESP-firmware

rvdbreemen commented 2 years ago

@fhennies thanks for reporting the issue. I removed D8 from the documentation.