I wanted to make an efficient splash screen that can start really early in pizero boot, on an OLED screen.
This will generate the C code to do this, as well as micropython code, and arduino code, for other targets.
It can also generate code for micropython & arduino.
Once you have built your header, check out examples to see how to use it. There are lots of ways to display images on OLED displays, and most devices have a way to do it n C or micropython, so you should be able to combine these ideas to work on any device, however you prefer.
On a pi, if you run i2cdetect it should look like this (with 3c being my OLED.) If not, you may need to adjust the code or ensure you are all setup right.
i2cdetect -y 1
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- 3c -- -- --
40: -- 41 -- -- -- -- -- -- -- 49 -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
Make sure to add this to your /boot/firmware/config.txt:
# dtparam=i2c_arm=on,i2c_arm_baudrate=50000
# dtparam=i2c_arm=on,i2c_arm_baudrate=100000
# dtparam=i2c_arm=on,i2c_arm_baudrate=400000
dtparam=i2c_arm=on,i2c_arm_baudrate=1000000
- make this work with more images-settings like at image2cpp
- output single frame images (png/jpg/etc) as well as gif
- output more types of code?