
T85-with driver and poe
cnlohr/ethertiny
A firmware-only half-duplex 10Base-T implementation for AVRs

Listens to MIDI messages on one pin and triggers drums on the others
MIDIMonkey is an open-source printed circuit board by aleh, from the aleh/MIDIMonkey repository on GitHub, published under the MIT licence. It is a 2-layer board with 8 parts on 22 nets, routed with 41 tracks and 2 vias.
It is built around the ATTINY85-15M. Its parts include 3 resistors, 3 connectors and 2 ICs. It belongs with the audio and music boards and the AVR (ATmega, ATtiny) boards of this library.
Listens to MIDI messages on one pin and triggers drums on the other pins (4 or 5 pins for ATtiny85).
I needed this when making analogue drums loosely following this schematics from Delptronics. I did not want to make a hardware sequencer, so opted to making a simple MIDI input instead.
The code is for ATtiny85, but should work on any Arduino. (For ATtiny85 you can use "Digispark (8mhz - no USB)" board in the Arduino IDE.)
This one is for ATtiny85 but should be easy to apply to any Arduino.

| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | 1K | Resistors_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P2.54mm_Vertical | R2 |
| 1 | 200 | Resistors_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P2.54mm_Vertical | R1 |
| 1 | 5K1 | Resistors_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P2.54mm_Vertical | R3 |
| 1 | 6N138 | Housings_DIP:DIP-8_W7.62mm | U1 |
| 1 | ATtiny85 | Housings_DIP:DIP-8_W7.62mm | U2 |
| 1 | ISP | Aleh:PROTO_2x5 | J3 |
| 1 | MIDI IN | Aleh:PROTO_MIDI | J1 |
| 1 | OUTPUTS | Aleh:PROTO_8 | J2 |
8 parts, built around the ATTINY85-15M. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the aleh/MIDIMonkey repository on GitHub, at the commit this page was made from: the board is kicad/MIDIMonkey.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

cnlohr/ethertiny
A firmware-only half-duplex 10Base-T implementation for AVRs




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