Speed Meter Circuit consists of four parts. These Supply solid floor Sensor sensor, microcontroller and microcontroller solid hexadecimal numbers we obtained from the 7-segment display technology with time code converter solid. Program Keil µVision3 AT89C51 microcontroller. Supply DC 12V... Electronics Projects, LED Display Speed Meter Circuit with AT89C51 "8051 example, avr project, keil example, microcontroller projects, " Date 2019/08/02