https://shop.pimoroni.com/products/four-letter-phat

Four Letter pHAT has one simple purpose: to let you display four letter words! It will also let you display numbers, characters, etc.

Modified to work on the Pi-puck robot platform, using the YRL Expansion Board.

Hardware modification is also required to make the pHAT work on the Pi-puck, to change the I2C address of the controller to 0x71.

This can be achieved by soldering a diode and 39kΩ resistor between AD (2) and A0 (23) pins of the controller chip. See the HT16K33 datasheet for more information.

Clone this repository, cd to the library directory, and run:

sudo python3 setup.py install

(or sudo python setup.py install whichever your primary Python environment may be)

In all cases you will have to enable the i2c bus.

• Guides and tutorials - https://learn.pimoroni.com/four-letter-phat
• Function reference - http://docs.pimoroni.com/fourletterphat/
• GPIO Pinout - https://pinout.xyz/pinout/four_letter_phat
• Get help - http://forums.pimoroni.com/c/support