This unique design has the eyes at the same pupil-distance as a human (~63mm) but is designed so that the nose section can be broken apart with pliers/cutters and then wired together with a 9-pin JST SH cable up to 100mm long so the eyes can be re-positioned or freely attached.
We wanted to make audio-effects easier so in addition to a class D audio amp, there's also a stereo headphone jack that is connected to the two DACs on the chip. Use it when you want an externally sound amplifier box for big effects. For small portable effects, the built-in amp can drive 8 ohm speakers up to 1 Watt.
On each side are JST-PH plugs for connecting external devices. The 3-pin JSTs connect to analog/timer pins on the SAMD51, so you can use them for sensors or GPIO devices. The 4-pin JST connector connects to the I2C port and you can fit Grove connectors in it for additional hardware support. For the PDM mic port, you can use this cable to wire to a PDM mic.
There's also plenty of sensors built in - light sensor, 3 tactile buttons, and a capacitive touch pad on the nose.
Speaking of that nose, the silkscreen is by the skillful Miss Monster, check out those fangs!
This is by far the cutest, creepiest and most incredible development board we've made so far! Gaze upon these features:
ATSAMD51G19 Cortex M4 microcontroller running at 120MHz with 512KB Flash, 192KB RAM
8 MB QSPI flash for storing graphics and sound effects
Two 240x240 IPS TFT displays each on their own SPI bus
Beautiful silkscreen with a boop-able nose that is a capacitive touch pad
Lipoly battery charge circuit for portable use
Stereo headphone jack out, for sound effects via an amplifier
Mono speaker driver for smaller 8 ohm 1W speakers
One 4 pin STEMMA JST connector for I2C connection (also Grove compatible)
Two 3 pin STEMMA JST connectors with digital/analog/PWM for servos, sensors, etc
One 4 pin JST SH port for connecting an optional PDM microphone
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