• MarkII

knob_quad_01 on gdrive

Knob Multiplexer

based on 74HC4051:  https://www.sparkfun.com/products/13906

74HC4051 Multiplexer

Example pinout: http://sankios.imediabank.com/74hc4051

Multiplexing example:    https://www.pjrc.com/teensy/td_midi.html

External ADCs

search params: https://www.digikey.com/products/en/integrated-circuits-ics/data-acquisition-analog-to-digital-converters-adc/700?FV=1c0011%2C1c00c5%2C1c0002%2C1c0006%2C264000a%2C264000b%2C2640013%2C2640014%2C2640016%2C2640017%2C2640024%2C2640004%2C2640005%2C2640006%2C2640055%2C2640056%2C2640059%2C3cc0075%2C3cc009f%2C3cc00a5%2C3cc00b5%2C3cc0024%2C3cc004e%2C3d4002a%2C3d4002b%2C3d4002d%2C3d4002e%2C56c0098%2C56c00ab%2C56c00b1%2C56c00b7%2C56c00c6%2C56c00c8%2C56c00f5%2C56c0024%2C56c017b%2C56c017d%2C56c017e%2C56c0027%2C56c0028%2C56c002c%2C56c002f%2C56c0033%2C56c0037%2Ca6c0066%2Ca6c0067%2Ca6c007e%2Ca6c0081%2Ca6c001e%2Ca6c001f%2Ca6c0020%2Ca6c0024%2Ca6c0004%2Ca6c0005%2Ca6c003a%2Ca6c0006%2Ca6c003c%2Ca6c003f%2Ca6c0040%2Ca6c0042%2Ca6c0045%2Ca6c0046%2Ca6c0047%2Ca6c0048%2Ca6c0049%2Ca6c004a%2Ca6c0009%2C1f140000%2Cffe002bc%2C40326f%2C4032eb%2C403305%2C403306%2C403326%2C403349%2C403354%2C403383%2C4033e9%2C40062e%2C400e12%2C400eff%2C401972%2C40197c%2C40197e%2C401981%2C401ff5&mnonly=0&ColumnSort=1000011&page=1&stock=0&pbfree=0&rohs=0&cad=0&datasheet=0&nstock=0&photo=0&nonrohs=0&newproducts=0&k=adc&quantity=&ptm=0&fid=0&pageSize=25&pkeyword=adc

MAX11626 through MAX11633,

http://datasheets.maximintegrated.com/en/ds/MAX11626-MAX11633.pdf

MCP3208, 12-bit 8-channel ADC

http://www.microchip.com/wwwproducts/en/en010534 Microchip MCP3208 12-bit ADC

MCP3208 Datasheet http://ww1.microchip.com/downloads/en/DeviceDoc/21298e.pdf

Nucleo MCP3208

    https://developer.mbed.org/users/ryood/code/Nucleo_MCP3208_Test/

https://developer.mbed.org/users/Kemp/code/mcp3208/  Library for MC3208

Axoloti MCP3208

http://community.axoloti.com/t/gpio-i-o-example-adc-mcp3208-spi/304

Other

https://pastebin.com/E0dPe2zb