Teensy Audio OctoWS2811 Board

2 layer board of 3.98x3.02 inches (101.12x76.68 mm).
Shared on February 29th, 2016 16:03.

Overview:

Breakout for the Teesny 3.2 and Teensy Audio Board.

Features:

• MIDI-OUT and Opto-isolated MIDI-IN
• Line Level Shifter for +5V output
• CAT6 connector for use with OctoWS2811 Library
• dedicated port and usb power for single neopixel strand (space for 0.1" Molex 22-23-2031 locking header)
• two encoders
• two pots
• LED on PWM pin
• filtered DAC out on tip of 3.5mm jack, header for cap shorting pin for non-symmetric output
• audio board line-in/line-out
• analog in on A10/A11 to use ADC0/ADC1 for simultaneous sampling
• accessory port for pins 29, 30, 33 (space for 0.1" Molex 22-23-2041 locking header)
• too much unpopulated board space
• smiley face

Components:

• Midi Jacks – CUI SDS-50J
• Midi Opto-Isolator – Sharp PC900 (e.g. PC900V0NSZXF)
• Line Level Shifter – TI SN74HCT245N
• CAT6 Connector – Amphenol RJHSE-5080-02
• Encoders w/ switch – Bourns PEC-11L or PEC-11R (e.g. PEC11R-4220F-S0024) – many others should work.
• Potentiometers – Bourns PTV09A series (e.g. PTV09A-4020F-B103) or Alps RK09L series (e.g. RK09L1140A2U)
• 3.5mm connectors – Kycon STX-3100-5CB or equivalent.
• Teensy SMD breakouts – Molex 15-91-2140
• Headers – any 0.1" headers…I use the locking Molex KK series indicated above!

Notes:

• Must remove Audio Board surface mount cap connected to pin 15/A1 for OctoWS2811 library to function.
• SD Card on Audio Board will not work.
• Make sure to align breakout SMD pads on bottom of Teensy.
• Bottom/Top copper should probably be swapped.

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