MicroPython lib for HT1632C led matrix from Sure Electronics

This library was written to control the Sure Electronics 32x16 bicolor led matrix from MicroPython. It has only been tested with an ESP8266 and the 32x16 bicolor matrix, using it on the 24x16 or 32x8 versions probably won't work as is. If you can help providing support for them, please be welcome :)

## Wiring

This is the default pin layout to control the matrix:

ESP8266	HT1632C	Color	GPIO
D5	DATA	Blue	14
D6	CS	Green	12
D7	WR	Yellow	13
D8	CLK	Orange	15

This can be easily overriden using the *_pin params in the constructor:

HT1632C(clk_pin=15, cs_pin=12, data_pin=14, wr_pin=13, intensity=PWM_10_16)

Special thanks

This library is heavily inspired from these C and C++ libraries:

• https://github.com/redgick/Redgick_GFX
• https://github.com/gauravmm/HT1632-for-Arduino
• https://github.com/wildstray/ht1632c

Kudos to their authors!