RoomThermostat
henkjannl
Opentherm room thermostat that can be controlled through Telegram, but also locally
Components (41)
| Reference | Value | Description |
|---|---|---|
| Q1 | MMBT2907A | PNP transistor, base/collector/emitter |
| U1 | ESP32-S3-WROOM-1-N8R2 | 2.4 GHz WiFi (802.11 b/g/n) and Bluetooth ® 5 (LE) module Built around ESP32S3 series of SoCs, Xtensa ® dualcore 32bit LX7 microprocessor Flash up to 16 MB, PSRAM up to 8 MB 36 GPIOs, rich set of peripherals Onboard PCB antenna |
| U2 | UZ1086L-33-TN3-R | 72dB@(120Hz) 1.5A Fixed 3.3V Positive electrode 7.5V TO-252-2(DPAK) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS |
| U3,U4 | EL357N-G | 80V 3.75kV 50mA 100mV@1mA,20mA 1 6V 1.2V DC SOP-4-2.54mm Transistor, Photovoltaic Output Optoisolators ROHS,DC Optocoupler, Vce 35V, CTR 50%, SO-4 |
| U5 | ILI9341_no_touch | ILI9341 controller, SPI TFT LCD Display, 9-pin breakout PCB, 4-pin SD card interface, 5V/3.3V |
| C1,C4 | 1u |