Comment on Is SPI just "slow"?
jeinzi@discuss.tchncs.de 23 hours ago
I noticed that you use digitalWrite multiple times for each transmitted pixel. That function is pretty slow - you should instead manipulate the microcontrollers registers directly for maximum performance. If you are using an Arduino, this article will help: roboticsbackend.com/arduino-fast-digitalwrite/
bvoigtlaender@feddit.org 14 hours ago
Thank you for the article it is really interesting. Always assumed it would already do just that but it does make sense considering the amount of Controller it has to support. Will be changing that anywhere it gets called often.