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The Commander is a multipurpose handheld button and LED board with accelerometer and microSD slot with CircuitPython support preloaded! It can be used as ...
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The Commander is a multipurpose handheld button and LED board with accelerometer and microSD slot with CircuitPython support preloaded! It can be used as a USB keyboard, keystroke replay, gesture control device, serial communication and more!
It's designed to be held in either hand and can be programmed using CircuitPython to react to input from buttons and/or the accelerometer.
The designer Chris Burton created it as he wanted a handheld board he could use to "type" lines of keystrokes from a script read from the SD card - just one of the many potential uses. Chris' example isn't finished software, so if you want to do the same you can create your own by building on the examples in the linked documentation.
Features
- 4 Tactile Buttons
- 9 LEDs (Red and Amber for each button, and Blue in the centre)
- ADXL345 Accelerometer
- MicroSD socket
- Preloaded with UF2 (USB Mass Storage Bootloader) and CircuitPython
- USB Connector for power and data
- Unpopulated Serial UART (3.3v) header
- Reset Button
- PCB is fully soldered/assembled, just add a USB cable
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- Bootloader
- Small starter software on a microcontroller that lets new code be uploaded before the main program runs. Knowing how to enter bootloader mode matters when you need to program the board or recover it after a faulty sketch.
- CircuitPython
- A beginner-friendly version of Python designed to run directly on microcontroller boards. If a product supports CircuitPython, you can often program it by copying code files onto the board rather than setting up a more complex toolchain.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- PCB
- A printed circuit board is a rigid board with copper tracks that connect electronic parts without loose wires. For this kit, the PCBs also form the airplane shape, so they are both the circuit base and part of the finished model.
- UART
- UART is a simple serial connection that sends data over separate transmit and receive wires, often labelled TX and RX. It matters because this module is designed to replace a wired UART cable with a wireless link while keeping the same serial data format.
- USB mass storage
- USB mass storage is the standard USB device class used by many flash drives and external storage devices. If a board supports it, your project may be able to read and write files on compatible USB storage, provided the software library also supports the device.
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