클릭 가능 트랙볼 모듈 -RGBW LED 지원
(Trackball Breakout)
개요
- 본 제품은 RGBW LED를 가진 클릭 가능한 트랙볼 모듈입니다.
- 네비게이션 스위치를 라즈베리나 아두이노에 추가하고자 할때 적당한 제품입니다.
- x/y축 방향 트래킹 및 클릭, 트랙볼 밑에는 RGBW(red/green/blue/white)가 있어서 비주얼한 피드백을 줄 수 있습니다.
- USB HID를 지원하는 아두이노와 사용시에 작은 마우스로도 사용이 가능합니다.
특징
- Mini trackball with click button
- RGBW LEDs beneath trackball for illumination
- Moulded plastic trackball casing
- Mounting holes
- Nuvoton N76E003AQ20 MCU
- I2C interface (address 0x0A/0x0B (cut trace))
- 3.3V or 5V compatible
- Reverse polarity protection
- Compatible with all models of Raspberry Pi, and Arduino
- Python library
- We've designed this breakout board so that you can solder on the piece of right angle female header and pop it straight onto the bottom left 5 pins on your Raspberry Pi's GPIO header (pins 1, 3, 5, 6, 9).
- It's compatible with our fancy Breakout Garden HAT (and pHAT), where using breakouts is as easy just popping it into one of the six slots and starting to grow your project, create, and code.
문서
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Engineering
There's a remarkable amount of engineering packed into this diminutive breakout.
The trackball module itself has a tiny cylinder magnet at each corner that spins and is read by one of four Hall-effect sensors.
There's a tiny dome switch right under the trackball for detecting clicks, and four LEDs (red, green, blue, white) around the trackball to illuminate it.
We've designed and injection-moulded a plastic trackball casing to hold the module in place and protect it, and this can be popped off to clean the trackball or roller, or to replace the module if necessary.
There's an on-board Nuvoton N76E003AQ20 MCU to read output from the trackball and dome switch, to control the LEDs, and to implement I2C.
Software
We've put together a Python library for Trackball Breakout that makes it simple to read directional values, click events, and set the LED colour. Theres a handful of examples of how to read the direction and click, make the LEDs rainbow, and use it as a mouse in Raspbian.
Notes
Dimensions: 25x22x9.5mm