The Rotary Trinkey is a compact USB device with a Trinket M0 microcontroller, a NeoPixel LED, and a rotary encoder. Inspired by TodBot’s project, it plugs directly into a USB A port and allows for customizable, programmable input and output. The board features a rotary encoder with a push switch, a NeoPixel, and a capacitive touch input. Rotary Trinkey supports CircuitPython or Arduino and offers serial, MIDI, or HID connectivity. Ideal for simple projects like volume knobs or scroll wheels, it’s easy to customize, though the rotary encoder and knob are sold separately. Affordable, durable, and fun, it's perfect for both beginners and experienced developers. Features: ATSAMD21E18 32-bit Cortex M0+ Processor: 48 MHz with 256KB Flash and 32KB RAM for efficient performance. Native USB Support: Compatible with all operating systems, enabling use as a USB serial console, MIDI device, Keyboard/Mouse HID, or even a small disk drive for Python scripts. Arduino & CircuitPython Compatible: Easy integration with both platforms for flexibility in programming. Single RGB NeoPixel LED: Customizable under-lighting for vibrant, colorful effects. Capacitive Touchpad: For added input functionality. Rotary Encoder Footprint: Standard 5-pin footprint compatible with any "PEC11" or "PEC12" rotary encoder. Compact & Keychain-Friendly: Small and portable, making it easy to carry around and use on the go. Package Includes: 1 x Adafruit Rotary Trinkey - USB NeoPixel Rotary Encoder
Specifications
| ATSAMD21E18 Processor | 48 MHz, 256KB Flash, 32KB RAM. |
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| USB Support | Works as serial, MIDI, HID, or disk drive. |
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| RGB NeoPixel LED | Customizable lighting. |
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| Item Type: | Accessory |
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| Flash Memory: | 256KB |
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| Max. Operating Current (A) | 2.1 |
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| Voltage Rating (V): | 3.3 |
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| Length (mm): | 32.4 |
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| Shipping Weight | 0.012 kg |
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| Shipping Dimensions | 4 × 4 × 2 cm |
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