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bjonnh
| Reference | Value | Description |
|---|---|---|
| U1 | H11L1 | Schmitt Trigger Output Optocoupler, High Speed, DIP-6, 1.6mA turn on threshold |
| U2 | 74HC4051 | 8-channel analog multiplexer/demultiplexer, DIP-16/SOIC-16/TSSOP-16 |
| C1 | 100n | Unpolarized capacitor |
| D1 | 1N4148WS | 75V 0.15A Fast switching Diode, SOD-323 |
| DR1,DT1 | LED | Light emitting diode |
| R1 | 33 | Resistor |
| R2 | 10 | Resistor |
| R3,R6 | 2.2K | Resistor |
| R4 | 220 | Resistor |
| R5 | 470 | Resistor |
| R7,R8 | 4.7k | |
| R9-R20 | 1M | |
| RV1-RV8 | 10K | Potentiometer |
| SW1 | SW_Omron_B3FS | Omron B3FS 6x6mm single pole normally-open tactile switch |
| TP1-TP12 | TOUCHPADA |