
U187 · M5Stack

Unit MIDI is a channel control and audio synthesis unit based on the MIDI interface. It allows you to set the left/right MIDI port's pass-through mode using the toggle switch on the front of the product. In Bypass mode, the left/right ports are directly connected, while in Separate mode, the left/right ports are separated. Both left/right MIDI ports support standard 5-pin DIN interfaces and 3.5mm headphone jacks. The TXD on the Grove port is connected to the left MIDI port signal, and the… (M5Stack U187)
| Part number | U187 |
|---|---|
| Manufacturer | M5Stack |
| Category | Audio › Amplifiers & Audio Modules |
| Pins | 4 |
Midi Unit with DIN Connector (SAM2695) pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | SIG1 | bidirectional | PORT.B: GPIO/analog; PORT.C: UART - see the unit's pin map |
| 2 | SIG2 | bidirectional | PORT.B: GPIO/analog; PORT.C: UART - see the unit's pin map |
| 3 | 5V | power | |
| 4 | GND | ground |
Schematic symbol and footprint
Schematic symbol
Footprint: Grove HY2.0 4-pin through-hole, 2.0 mm pitch — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.
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