ietsnut / Secret Santa gift
For Secret Santa I drew classmate Corina Vettore, and decided to make an avatar generator as she likes avatar creators. I’ve had my eyes on the TTGO T5 from LilyGO, a microcontroller based on an ESP32 with a built-in 2.13 inch E-paper E-ink display.
I followed this video by ShotokuTech to set it up and get the codebase. Then I created 6 250×122 illustrations for all three body parts:
After converting them into byte arrays, I could get 3 random elements and concatenate them all into a single byte array.
int b = (int) random(0, 6); int m = (int) random(0, 6); int t = (int) random(0, 6); uint8_t set; memcpy(set, tops[t], sizeof(tops[t])); memcpy(set+sizeof(tops[t]), middles[m], sizeof(middles[m])); memcpy(set+sizeof(tops[t])+sizeof(middles[m]), bottoms[b], sizeof(bottoms[b]));
Here is a video of the working prototype:
Because it is an E-paper E-ink display, the last drawn bitmap image will stay forever once the power is off: