Programming and Application of the AT89C2051 micro-controller
Interfacing of an LCD module
Application of reed switches and opto-couplers for sensing
The Micro-controller based Speedometer cum Odometer is a digital speedometer-cum-odometer can be installed with a motorbike. The circuit uses an AT89C2051 micro-controller, a 16x2 LCD display, 4N35 optocoupler, 24C02 EEPROM and some easily available components.
The features of this digital Speedometer cum Odometer are:
1. Digital readout
2. Speed displayed in km/hour
3. Distance traveled displayed in kilometres
4. Readings saved in non-volatile memory (EEPROM)
5. Reliability due to use of the microcontroller
6. No mechanical wear and tear
7. Home-brewed speed transducer/sensor
8. Self reset to zero after completion of 99,999.9 km
9. Easy to build and fix onto the bike
*Kindly refer to the PDF for a detailed description of the hardware and software*
