2 layers57.3 × 19 mm
2 layers28.5 × 108.5 mm
Maplet
peacheym/maplet1An ESP32 based eurorack module for libmapper connectivity
- Size
- 28.5 × 108.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 26
- Nets
- 43
- Pads
- 89
- Tracks, vias
- 171, 0
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 29 Feb 2024
- Updated
- 17 Oct 2024
Overview
Maplet is an open-source printed circuit board by peacheym, from the peacheym/maplet repository on GitHub. It is a 2-layer board of 28.5 × 108.5 mm with 26 parts on 43 nets, routed with 171 tracks and 0 vias.
Its parts include 9 connectors, 7 diodes, 4 resistors, 3 capacitors and 1 IC. It belongs with the audio and music boards of this library.
README
README.mdMaplet
An ESP32 based eurorack module for libmapper connectivity.
Why mappings in Eurorack?
Eurorack systems are excellent at making "generative music", where the system plays itself using sequencers, LFOs, clocks, and other modules. That said, there is lacking a method for "performative interaction" with Eurorack (asides from simply adjusting knobs directly on the system).
Hardware
Maplet's front panel features a simple initial design.
System Overview
The module uses an UnexpectedMaker TinyPico board based on the ESP32 chip as well as a MCP4728 digital-to-analog converter (DAC) as the main components.
Parts
26| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | AudioJack3 | benjiaomodular:AudioJack_3.5mm | J1, J2, J3, J4 |
| 4 | LED | LED_THT:LED_D3.0mm | D2, D3, D5, D6 |
| 4 | R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical | R1, R2, R3, R4 |
| 2 | , | ||
| 2 | 1N4007 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D4, D7 |
| 2 | Conn_01x06_Female | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | J5, J6 |
| 2 | Conn_01x10_Male | Connector_PinSocket_2.54mm:PinSocket_1x10_P2.54mm_Vertical | J7, J8 |
| 1 | C0.1uF | Capacitor_THT:C_Rect_L4.0mm_W2.5mm_P2.50mm | C1 |
| 1 | C100nF | Capacitor_THT:C_Rect_L4.0mm_W2.5mm_P2.50mm | C2 |
| 1 | C1uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C3 |
| 1 | Conn_02x05_Counter_Clockwise | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J9 |
| 1 | LM7805_TO220 | Package_TO_SOT_THT:TO-220-3_Vertical | U1 |
| 1 | NeoPixel_THT | LED_THT:LED_D5.0mm-4_RGB_Staggered_Pins | D1 |
Questions
How big is the Maplet PCB?
It measures 28.5 × 108.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Maplet use?
26 parts. 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.
Where can I download the Maplet KiCad files?
From the peacheym/maplet repository on GitHub, at the commit this page was made from: the board is hardware/PCB/pcb.kicad_pcb and its schematic hardware/FrontPanel/FrontPanel.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Maplet design in my own project?
Its repository states no licence, so its author keeps all rights: ask peacheym before reusing the design.
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