You can use the Feather Tripler to connect the Feather, Motor FeatherWing, and I2S amplifier together. This makes it nice and modular and simplifies the connections to the motor, speaker, batteries, and NeoPixels.
Power
You'll use a 4x AA battery pack for motor power and a separate LiPo battery for the Feather.
Feather Tripler
Solder two sets of socket headers on the Tripler as shown.
Solder header pins underneath the Feather and connect it to the Tripler.
Motor FeatherWing
Assemble the Motor FeatherWing, connect it to the AA battery pack, and then connect it to the FeatherWing Tripler.
Connect the motor wires to the M1 motor output. Polarity doesn't matter, you'll be able to reverse direction in code either way, since it's a dual H-bridge driver.
NeoPixel Strand
Connect the NeoPixel strand to the Feather (via the Tripler) with these connections:
- Feather 3V to NeoPixel V+
- Feather GND to NeoPixel GND
- Feather D6 to NeoPixel Din
I2S Audio Amp
Using the prototyping area of the Tripler, connect the I2S audio amplifier to the following pins:
- amp LRC to Feather MI
- amp BCLK to Feather TX
- amp DIN to Feather RX
- amp GND to Feather GND
- amp Vin to Feather BAT
Then connect the speaker wires to the amp output (polarity doesn't matter here).
Connections and Embedding Electronics
Plug the LiPo battery to the Feather via the JST extender switch, then place the electronics inside the prop as shown.
Test the fit with the lid in place, then secure everything with hot glue or double stick adhesive foam tape.
You can turn on the Feather power when ready for use.
Close the lid and you're ready to hold a high-tech seance!
Page last edited March 08, 2024
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