mqtt encoder

MQTT encoder built on XIAO ESP32-C6.
Sends CW | CCW | SELECT message.
Sends battery status.

- Seeed Studio XIAO ESP32-C6
- externat wifi antenne
- KY-040 rotary encoder (needs 2×100nF and 2×100k)
- li-ion 18650
- BMS 1S protection with DW01A
- LED + 100R resistor
- voltage divider 2×100k + 100nF
- toggle switch SS-12F15

usage and software: https://tyfoza.blogspot.com/2026/06/prehravac-filmu-do-expozice.html