更新python pip管理套件
sudo pip3 install --upgrade setuptools
安裝CircuitPython轉譯器，provide the layer that translates the CircuitPython hardware API to whatever library the Linux board provides.
sudo pip3 install adafruit-blinka
安裝sensor library
pip3 install adafruit-circuitpython-tsl2561
電源接3.3v，若要外接記得共同接地。
參考資料：
1. Installing CircuitPython on Raspberry Pi, https://learn.adafruit.com/circuitpython-on-raspberrypi-linux/installing-circuitpython-on-raspberry-pi
2. adafruit/Adafruit_CircuitPython_TSL2561 github