RoomThermostat
henkjannl
Opentherm room thermostat that can be controlled through Telegram, but also locally
Components (14)
| Reference | Value | Description |
|---|---|---|
| Q1 | MMBT5401 | PNP transistor, base/collector/emitter |
| U1 | NPN | Bipolar transistor symbol for simulation only, substrate tied to the emitter |
| D1-D4 | D | Diode for simulation or PCB |
| D5 | 4V7 | Zener diode |
| D6 | 15V | Zener diode |
| D7 | 4V3 | Zener diode |
| I1 | IPULSE | Current source, pulse |
| I2 | 9m | Current source, DC |
| R1 | 180 | Resistor |
| R2 | 100 | Resistor |
| R3 | 330 | Resistor |
| R4 | 1k5 | Resistor |
| Rwires1 | 10 | Resistor |
| V1 | VPULSE | Voltage source, pulse |