/pmod_midi

PMOD Adapter for the CME Core BLE MIDI module

GNU General Public License v3.0GPL-3.0

pmod_midi

PMOD Adapter for the CME Widi Core BLE MIDI module

License: GPL v3 Upload to - AISLER

Kicad files for a PCB adapter board/shield to allow the CME Widi Core module to be connected to development boards which use the Digilent PMOD connector.

PMOD_MIDI Photograph

PMOD Pin Core Pin Notes
1 1 (TX) Connects directly to Widi Core TX pin for MIDI over UART
2 11 (RX) Connects directly to Widi Core RX pin for MIDI over UART
3 6 (ON) Connects to Widi Core ON pin via pull down resistor. Active high to enable the Widi Core module.
4 12 (RS) Connects to Widi Core RS pin. Active low reset.
7 16 (S1) Connects to Widi Core S1 pin. Bluetooth connection status (0 = Not connected, 1 = Connected).
8 15 (S2) Connects to Widi Core C2 pin. Bluetooth role (0 = peripheral, 1 = central)
9 13 (SF) Connects to Widi Core SF pin. Baud rate (0 = 31.25 Kb/s, 1 = 100 Kb/s). Requires reset cycle to execute change.
10 14 (BT) If 1, shorts Widi Core BT pin to ground - simulating button press.

The board also has a push button which shorts Widi Core pin 14 (BT) to ground (for factory reset and bluetooth role change), and an RGB LED, powered by Widi Core pins 2 (LB), 3(LG), 4 (LR) and 5(V3), for status information (see CME Widi Core datasheet, page 9). An optional 0.5 inch pitch header can provide access to the Widi Core pins 9 (TMS) and 10 (TCK)

The BOM includes sockets to allow the CME Widi Core (or the Core N/XN with suitable headers) to be inserted and removed. Alternatively the Core N/XN can be hard soldered for example using 0.1 inch pitch header pins.