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minitrash

6HP teensy 3.1 / wm8731 codec thingie.

My image

  • still deliberating a proper name. pjrc audio adapter compatible eurorack module.
- stereo i/o  : 10 VPP; 44.1k / 16 bit (when using pjrc audio lib)
- 2 x ADC; buffered, range: +/- 5V
- 4 x pots
- 2 x digital inputs; treshold is ~ 2.5V; up to 12V/15V
- 2 x illum. tact switches
- microSD card socket
- ext. SPI flash (w25 / soic 8) or SPI SRAM (23LC1024)
- depth: ~ 40mm

  • find the BOM here / preliminary build guide: here

  • two simple examples (recorder, delay using external 1Mbit SRAM) can be found here

  • pinout is identical to pjrc audio adapter; being a module, the thing also has:

- 4x pots     < >   pins A10, A11, A7, A6
- 2x CV in    < >   pins A1, A2
- 2x clk in   < >   pins 0, 3
- 2x switches < >   pins 1, 4
- 2x LEDs     < >   pins 2, 5