Move the data/command GPIO from Arduino header 16 (D10), which collides
with Arduino SPI SS, to Arduino header 15 (D9).
Add commented example for specifying a reset GPIO on Arduino header 14
(D8).
Signed-off-by: Henrik Brix Andersen <henrik@brixandersen.dk>
This change allows to use SSD1306 based displays to be used on the
SPI bus as well.
Adding SPI shield.
Tested on SSD1306 and SSD1309 based displays using I2C.
Tested on SSD1309 based display using SPI.
Signed-off-by: Marco Peter <marco@peter-net.ch>
Erwan Gouriou