A dime sized (18mm diameter) Wi-Fi/Bluetooth wireless IMU. Runs MicroPython
What is it?
The world's smallest open-source Wireless IMU. It has an ICM-20948 MPU (9-axis: accelerometer, gyroscope, magnetometer), and an MS561101BA03-50 precision altimeter/temperature sensor.
The…
The world's smallest open-source Wireless IMU. It has an ICM-20948 MPU (9-axis: accelerometer, gyroscope, magnetometer), and an MS561101BA03-50 precision altimeter/temperature sensor.
The coin uses the ESP32-PICO-D4 chip (4MiB) and has all peripherals attached via SPI (hSPI).
Requires a USB to UART adapter that can provide pass-through 5V to coin VIN pin and at least 500mA to 3V3 pin.
Pin Out:
RGB LED, Red pin: 26
RGB LED, Green pin: 4
RGB LED, Blue pin: 5
hSPI SCK pin: 14
hSPI MOSI pin: 13
hSPI MISO pin: 12
MPU Chip Select pin: 15
Altimeter Chip Select pin: 27
Why did you make it?
I made these for use in personal projects where I need a very small motion processing unit.
What makes it special?
It's incredibly small, light weight, and open source!
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Chris |
June 16, 2020
Gold in a mindbogglingly small package
As per the Femto standard, knocked it out of the park with a hell of a design. There's no way so much power and connectivity should fit in the size of a thumbnail, yet here we are. Can't wait to see what comes next!
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