Support for RPi4 4GB v1.5 (#492)
Support for RPi4 4GB v1.5 (#492)

Co-authored-by: Philip Howard <e888d2bd6f13f82caa51a37c03d034c76f661ba3@pimoroni.com>
jgarff/rpi_ws281x,jgarff/rpi_ws281x,jgarff/rpi_ws281x