thermostat
cswank
Components (13)
| Reference | Value | Description |
|---|---|---|
| Q1,Q2 | MMBT3904 | Cool SSR low-side driver,Heat SSR low-side driver |
| U2 | DS18B20 | Programmable Resolution 1-Wire Digital Thermometer TO-92 |
| J1 | Raspberry_Pi_2_3 | expansion header for Raspberry Pi 2 & 3 |
| J3 | Furnace 24VAC | 24VAC thermostat wires R/W/Y/G/C |
| K1,K2 | AQH2213 | Cool SSR (R->Y),Heat SSR (R->W) |
| R1 | 4.7K | Resistor |
| R2-R4 | 10K | Resistor |
| R5-R7 | 1K | Resistor |
| R8,R9 | 180 | SSR LED series resistor (cool),SSR LED series resistor (heat) |
| R11,R12 | 2.2k | SSR base resistor (cool),SSR base resistor (heat) |
| SW1 | Minus | Push button switch, generic, two pins |
| SW2 | Fn | Push button switch, generic, two pins |
| SW3 | Plus | Push button switch, generic, two pins |