RoomThermostat
henkjannl
Opentherm room thermostat that can be controlled through Telegram, but also locally
Components (12)
| Reference | Value | Description |
|---|---|---|
| Q1 | BC858 | PNP transistor, base/collector/emitter |
| U1,U2 | EL357N(C)(TA)-G | |
| D1-D4 | 1N4448W | 100V 1.25V@100mA 4ns 150mA SOD-123 Switching Diodes ROHS |
| D5 | 4V7 | MM1Z4V7 |
| D6 | 15V | Zener diode |
| D7 | 4V3 | Zener diode |
| J1 | 0.023 | Generic screw terminal, single row, 01x02, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J2 | Microcontroller | Generic screw terminal, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/) |
| R1 | 220 | 1% 1 8W Thick Film Resistors 150V 100ppm -55 155 220 0805 Chip Resistor - Surface Mount ROHS |
| R2 | 100 | 1% 1 4W Thick Film Resistors 200V 100ppm -55 155 100 1206 Chip Resistor - Surface Mount ROHS |
| R3,R4 | 330 | 1% 1 10W Thick Film Resistors 75V 100ppm -55 155 330 0603 Chip Resistor - Surface Mount ROHS |
| R5 | 1k5 | 1% 1 16W Thick Film Resistors 50V 100ppm -55 155 1 5k 0402 Chip Resistor - Surface Mount ROHS |