Pinout

Pin Map
ANALOG IN
PINS
5V
ELECTRODE
SOLDER
PADS
E11 to E0
UNALLOCATED
DIGITAL PINS
MIDI
AUDIO
SIGNAL
OUT
DIGITAL PINS
FOR MP3
DECODER
MIDI
Remove solder
bridges to disable
MP3 functionality
and use.
DIGITAL PINS
FOR TOUCH IC
I²C bus
MPR121 set
to address
5C
3.3V
NOT
CONNECTED
STARTUP < 100mA
SOFTSTART < 400mA
GND
GND
GND
POWER MAX LOADS
PIN 2 SDA = SDA
RESET
LINE
PIN 3 SCL = SCL
AUDIO UNALLOCATED
DIGITAL PINS
DIGITAL PINS
for TOUCH
ELECTRODE
SOLDER PADS
ANALOG
PINS
3.3V 5V GROUND NOT
CONNECTED
The Touch
Board runs on
5V and has a
boost circuit to
power up from
LiPo batteries.
The Touch
Board has a
3.3V regulator
to power 3.3V
logic circuits.
0< Value<5V
0< Reading<1023
4.9mV per unit
These are great
for grounding
shielded cable
when used with
the electrode
solder pads.
This is to
accommodate
standard 8 pin
headers.
These map to
the larger touch
electrodes and
are useful for
permanent
project
installations.
The Touch
Board uses a
dedicated touch
chip for touch
and proximity
sensing.
Use these for
your project’s
additional
features.
The Touch
Board has a
special chip for
MP3 decoding
and MIDI
function.
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