Introduction - If you have any usage issues, please Google them yourself
32* 64 shook his stick, use 51MCU, 8KROM, can store 8* 1024/32 = 256 16* 16 characters, minus the program control, can store about 200 characters. External interrupt control swing direction, by a certain delay to balance the scan time and swing time. External trigger signal from the hardware interrupt switch back and forth off the mercury.