LED MATRIX CASE - Max7219 x 4 - bluePill

thingiverse

Case for four led matrixes and a bluepill. Enjoy. Also added a generic matrix only case, which could be waterproof if rubberized. Inspired by https://www.instructables.com/id/LED-Matrix-Game-of-Life-16x16/. Regarding the above code: I used PA7 - dataIn, PA5 Clk, and PA4 Load. Once I aligned the matrices, I copied the function that splits the screen into four parts. Then I pasted it at the end, renamed the function to displayLogo, defined a new byte at the start of the sketch called logo [16][16], created a logo out of 16 lines of 16 ones and zeros, and replaced all calls to 't1' in the displayLogo function with 'logo'. Now I can call displayLogo() in setup or when a new generation occurs. And if it stalls on zero movement: This code takes a snapshot of t1 every 20 steps and compares it to the snapshot from 20 generations ago called last. If they're the same, memcmp returns a zero into n, which then triggers a new generation. int n = 1; int checkcount = 20; checkCount++; if (checkCount >= CHECK_COUNT) { n = memcmp(t1,last,sizeof(last)); if (n == 0) { randomize(t1); clearDisplays(); checkCount = 0; updateDisplay(t1); noOfGeneration == 0; } checkCount = 0; last = t1; } Duuuunnaaah!!! Next job: using the m5stick self-playing pong code with the max7219, then asteroids, then defender of sorts.