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by carel.combrink
Wed Nov 01, 2023 6:34 pm
Forum: Hardware
Topic: espressif/onewire_bus: esp_err_t 0x105 (ESP_ERR_NOT_FOUND)
Replies: 0
Views: 1282

espressif/onewire_bus: esp_err_t 0x105 (ESP_ERR_NOT_FOUND)

Hi,

This feels like a hardware issue, although it can be software.

I created a very simple board using veroboard and a ESP32-DEV-CH340-C board.

My basic setup is:

Three DS18B20 temperature sensors connected to GPIO_NUM_4.
Two opto isolated relays
A 18650 Bat Holder + Charger for UPS (5V in ...

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