How to make an electronic speedometer

How to make an electronic speedometer

Speedometer is a device that is used to measure the speed of any transport or other moving means. The error of the electron speedometer is much lower mechanical. When the standard meter breaks, you can purchase a new device or make it at home. To do this, you need to program controllers and a little understand in electronic circuits.

1
To begin with, we independently develop or download a finished detailed electronic circuit for building a speedometer on the Internet. The second option is the most convenient, since it is not necessary to look for information in a variety of literature to correctly compose a diagram of the device. Tools that will be needed: compiler and parts, speed sensor and tester, board and soldering iron.


2
We acquire the necessary parts for the manufacture of an electronic device. For example: transistors, phytodiodes, display, capacitors, resonator, relay, voltage stabilizer, etc. Buy all items can be in a specialized electronics store or on a radio machine.

3
We collect an electronic circuit of the speedometer. After completion of the soldering, check the quality of the connection of the solder items using the tester.

4
We purchase a speed sensor and install this controller on the vehicle wheel itself or to fasten the gearbox. But first should calculate the number of pulses for 1 km, that is, measure the length of the circle of the automotive wheel - one pulse is equal to one turn. And on the basis of the data, calculate the device parameter.

5
Special compiler perform a microcontroller firmware. And we immediately test the operation of the electronic speedometer. Connect the device directly to the automotive tool.

6
We carry out the installation of the device and check the performance of the speedometer in practice.

When the electronic speedometer is detected during the operation, it is necessary to reprogram the microcontroller or change the electronic circuit.

Comments leave a comment
Dmitriy 05/06/2015 at 11:51

Article in the style of "Thank you, Cap"!
Do you know what's worse than just in humans? - Diecetanism.
Why write about what you do not understand? Nothing really in business and other people's developments. "If something does not work, then you need to reprogram the controller or change the electronic circuit" - Thank you, Cap!

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