Search This Blog

Loading...

Find Literature here

Final year degree project for engineers DAC0800 based project circuit diagram and interfacing with pic mirocontroller Decoding Routine (Includes NRZI Encoding, BitStuffing Removal / Addition).USB Transmission Performing Custom Actions Requested
development of Car Tachometer speedometer based microcontroller PIC16F628
Programmable Logic Controllers (PLC) is an electronic system that operates digital and designed for industry and machinery.PLC
To plot the characteristic curve of a photo resistor by varying levels of illumination.
Microcontroller 8051 information

Friday, August 12, 2011

Car Tachometer speedometer based microcontroller PIC16F628

development of Car Tachometer speedometer based microcontroller PIC16F628

This is microcontroller project for measurement of speed of a car (Car speedometer, or digital tachometer)in which microcontroller PIC16F628 at 4 MHz is used and is designed to run on Twingo.A speedometer is a dashboard instrument that indicates how fast a car is moving.
The twingos have an inductive sensor that delivers a sine of 1.5V to 4V to 800tr/min and 4000rpm.
This sensor is mounted on the motor output before the gear box. It measures the pulse of the 58 teeth of the gear motor.A speedometer gauge on a car, showing the speed of the vehicle in kilometres per
hour.
So a small analog module is developed that reformat the sine waves for a nice square waves. This module mounts under the hood and is supplied with 5V.
Car Tachometer speedometer based micro controntroller PIC16f628


characteristic of digital speedometer or digital Tachometer using microcontroller PIC 16f628:-


- 14 LEDs are used which shows the speed in the range of 400 to 5600 rev / min.
- four digit 7-segment LED display: resolution 50tr/min up 9999tr/min.
- Display of max for 1 second.
- Control of light intensity PWM (20% night mode, 100% on the day) led by pilot wire pilot.

Part in the main program interrupt 300 times per second via the PIC TIMER1.
Why 300 times?
There are six displays (4 + 2 * 7segments bars 7 LEDs) that must refresh 50 times per second. So this give us 50Hz * 6 => 300 SRI / s.
Otherwise the measurement tacho is made 8 times per second. The gear has 58 teeth, giving 58 * 1000/60 = 966Hz to 1000 rpm. The pulses are counted by the TIMER0.
It remains to make a calculation of the rotation speed and display it on the 7-segment LED and 14 in the form of meter.

Downloads

Normally, digital speedometers are found only in luxury cars and high-end motorbikes.car electronic speedometer,we describe here how to build a digital speedometer-cumodometer for your motorbike.does car speedometer work,This project has been designed to display Speedometer along with Odometer using microcontroller. automotive gps speedometer,speed test,Electronics Projects, Mechanical Projects, MicroController Projects download speedometer,reliance speedometer,
adsl speed, speedometer tmnet,speedmeter,2wire speedometer broadband,Speedometer Microcontroller Speedometer Onboard Digital Vehicle Speedometer Wheeler Mileage Testing Machine Vehicle Tha Regular Speedometer Land Vehicle Speed Limit Microcontroller-Based Speedometer Seminar Topics Motor Vehicle Odometer Technology Discussion Seminar Class Password Enabled Speed Limit Digital Speedometer Here is a project which is based on an electronics hobbyist kit This is a microprocessor controlled Digital Speedometer


3 comments:

  1. hi there, im lei from the philippines, and i found this site regarding onboard digital speedometers, i will try to build this project to see if it will fit my bike, now the question...how can i be able to calibrate it..or does the hex files have a program that will calibrate itself...perhaps an ASM file many thanks...

    heres my email glenberdan@rocketmail.com

    ReplyDelete
  2. @ LEI:-
    Send me all relvent information of your project to me via my e-mail (rghkk@hotmail.com).
    I will check and tell you how you can calibrate the speedometer and can process further.
    My other technical blog on microcontroller projects is (www.microcontroller51.blogspot.com), where i am helping many studnets and hobbiers to develop their projects.
    You can find one or two projects related to speedomter and / or frequency measurement using microcontroller, i hope those will also help you.

    ReplyDelete
  3. heloo...can you send me the assembly code of this project(Car Tachometer speedometer based microcontroller PIC16F628)...pls...my email add is carmenjoypalsario@yahoo.com..i need that for my thesis...tnx...

    ReplyDelete

PWM 8051 SCR or triac controller Microcontroller 8051 PWM
Producing PWM output for seperate channels to control the phase angle of SCR or triace for power control of any AC load like Heater Motor Fan, this project can be used as heater power controller.
Graphical LCD Interface with Microcontroller 8051 LOAD BANK 8051
Interface a large Load bank of solid stat relays with microcontroller 8051 and switch ON OFF through computer via serial interface RS232
large current relay interface with microcontroller 50 Relays interface
Interface of 50 relays with microcontroller for serial control through PC shift register are used for io port expansion.
Elevator or lift controller with microcontroller Elevator
Elevator or lift controller using microcontroller 8051 for three floors.
 GSM security System
GSM based security system for home and office, a SMS alert will be done on any problem at security.
A interface of GSM modem with microcontroller 8051. GSM Modem
A interface of GSM modem with microcontroller 8051.
SMS base system for industrial automation and control SMS industrial control
SMS based automatic machines control for automation, the microcontroller 8051 is used for serial interface and sms sending through mobile
ADC0804 interfacing with microcontroller 8051 ADC0804 Interfacing with 8051
Atmel microcontroller AT89s51 is used for interfacing the ADC0804 for measuring analog voltages.
APIS irrigation system circuit diagram APIS
Automatic Plant irrigation System for watering the field the system is based on microcontroller
LED seven segment display for car parking Car Parking Project
LED seven segment display for automatic car parking system project based on microcontroller 8051.
Interface of adc0808 with microcontroller at89c51
 ADC0809 or ADC0808
Interface of adc0808/ADC0809 with microcontroller at89c51 . 8 channel 8 bits ADCS interfaces with microcontroller
Stepper motor Interface with microcontroller Stepper Motor
The Interface of stepper Motor with microcontroller 8051, LED optocoupler based isolation for spikes and high voltages protection circuits
Pressure sensor,flow transducer,force sensor,weight sensor Pressure Transducers
Construction of dufferent types of pressure sensors or pressure transducers and the interfacing of pressure sensors with microcontroller.
Tachometer or speedometer sensor construction Tachometer Sensor
Microcontroller based Tachometer construction, coding, circuit diagram and implementation.
VB6 serial RS232 programming example VB6 Serial RS232 Program
Serial communication between microcontrollers and computer using VB6. An example program with source code for serial communication using VB6.
Hyperterminal setup and communication settings SETUP Hyperterminal for RS-232
A guide for setup of Hyperterminal program for different setting used for serial communication between PC and microcontroller.
LCD interface with microcontroller LCD Interface with microcontroller 8051
Example program and circuit diagram for the interface of LCD with microcontroller 8051.
programmable frequency controller and frequency monitor programmable frequency Meter
This project is for measuring frequency of a digital signal. The project offer programmable selections and have many interesting features