The PCB holds the Adafruit ItsyBitsy M4 Express, connectors and level shifters. The MDAC attenuator, input selector, both encoder panels and power digital power supply all connect to this PCB.
The main python code is here: main.py
| Reference | Quantity | Value | Footprint |
|---|---|---|---|
| U1 | 1 | m0-express | Adafruit ItsyBitsy M4 Express |
| U2, U3 | 2 | SN74AHCT125D | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm |
| LED_3V1, LED_5V1 | 2 | LED | LED SMD 1206 |
| RLED1, RLED2 | 2 | R | Resistor SMD 1206 |
| C1, C2 | 2 | C | Capactior SMD 1206 |
| ENCODER-PANEL-1 | 1 | ENCODER-PANEL-1 | Molex_KK-254_AE-6410-05A_1x05_P2.54mm_Vertical |
| ENCODER-PANEL-2 | 1 | ENCODER-PANEL-2 | Molex_KK-254_AE-6410-05A_1x05_P2.54mm_Vertical |
| IR1 | 1 | Conn_01x03 | Molex_KK-254_AE-6410-03A_1x03_P2.54mm_Vertical |
| J5 | 1 | MDAC-INPUT-SELECTOR | Molex_KK-254_AE-6410-06A_1x06_P2.54mm_Vertical |
| 3.3V1 | 1 | 3.3V | Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical |
| 5V1 | 1 | 5V | Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical |
| VBAT1 | 1 | V-BAT | Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical |