This app is a 8051 Tutorial based on C language. It is suitable for hobbyist or engineering students. Features. 8051 architecture review. 8051 asm mnemonics. 8051 C lanugage. 12 projects including LED, buzzer, key switch, external interrupt, 7-segment display, 8x8 led matrix, timer Baud calculator. Features in Pro. More than 10 extra 8051 projects.