mdb slave esp32s3
nodestark
ESP32-based MDB cashless device for vending machines, supporting EVA DTS DEX/DDCMP telemetry and payments over the MDB protocol via Bluetooth and MQTT
Main components
Download full BOM| Part Number | Description |
|---|---|
| ESP32-S3FH4R2 | |
| SIM7080G | |
| LM2594HVM-3.3 | 3.3V, 0.5A SIMPLE SWITCHER® Step-Down Voltage Regulator, Maximum VIN 60V, SOIC-8 |
| TLP785 | DC Optocoupler, Vce 80V, CTR 50-200%, DIP4 |