Hardware Recommendations and Wiring Guide (Hardware Version 1)
The following components are used to create the PGSparkLite pedal:
| Description | Quantity | Example Supplier (UK) | Notes |
|---|---|---|---|
| Enclosure (Black) | 1 | rswww | Material is important. The enclosure you choose should be plastic to allow for WiFi and Bluetooth communications without interference. |
| Self Adhesive Rubber Feet x 4 | 1 | ebay | Available from lots of other suppliers too. |
| LED (Red) | 3 | rswww | Minimum order of 5. Colour is entirely up to you... |
| 330R Resistor | 3 | rswww | Minimum order of 10. |
| 2 x SPST | 3 | ebay | Available from lots of other suppliers but must be SPST. |
| OLED 128x64 SSD1306 Display (White) | 1 | ebay | Available from lots of other suppliers too. |
| Bezel Surround | 1 | ebay | Optional. Gives a good finish to your pedal. |
| Raspberry Pi Zero W | 1 | The Pi Hut | If you're feeling brave go for the 'no header' option and hard wire... |
| 16GB SD Card | 1 | The Pi Hut | Available from other suppliers but why not grab a SD card at the same time as the Pi? |
| 5.5mm Barrel Jack Chassis Mount | 1 | ebay | Optional. You could choose to use a panel mount thru connector or internal battery pack. |
| USB to Barrel Jack Cable | 1 | ebay | Optional. You could choose to use a panel mount thru connector or internal battery pack. |
| Pack of Dupont Jumper Wires (Male to Female) | 1 | ebay | Most will need their male ends lopped off but can also be used as extension cables for debugging / re-routing |
| Pin Number | GPIO Number | Description |
|---|---|---|
| 1 | N/A | OLED Power In (VDD) |
| 2 | N/A | 5V Power Input |
| 3 | 2 (SDA) | OLED SDA |
| 5 | 3 (SCL) | OLED SCK |
| 8 | 14 (TXD) | Mod LED Anode |
| 9 | N/A | 5V Power Ground |
| 14 | N/A | OLED GND (Ground) |
| 29 | 5 | Drive Footswitch |
| 31 | 6 | Delay Footswitch |
| 32 | 12 (PWM0) | Delay LED Anode |
| 33 | 13 (PWM1) | Mod Footswitch |
| 34 | N/A | LEDs Ground |
| 36 | 16 | Up Footswitch |
| 37 | 26 | Drive LED Anode |
| 38 | 20 (PCM_DIN) | Down Footswitch |
| 39 | N/A | Footswitches Ground |
| 40 | 21 (PCM_DOUT) | Select Footswitch |
Just a note with regards the OLED display; Some come with the GND and VDD inputs reversed so ensure that your wiring matches your display rather than my diagram.
