I want 2 build a tachometer with LCD display. Need circuit!

[swiftakias]

I need to build a tachometer with an a lcd display or a 7 segment led display . If anyone knows i need a circuit diagram and components list to build it .PLEASE HELP!!!! :cry: :roll:

 

[DemonRising]

what is the max rpm that you want to monitor? also, what what are you using for a signal reference?

 

[kentken]

Lcds are easer to interface to, but, 7 Seg LEDs are larger and brighter.

For 7 Seg LEDs I use a MC4511, the chip recieves a bcd code, it latches it into memory, and displays. So there is no need to send it over and over to the display.

I have a counter that uses them, and they work great.

What controler are you going to use?
Interfaces?

 

[L3wis]

sounds like some1 hasn't started their school project yet :?

 

[pasanlaksiri]

I need to build a tachometer with an a lcd display or a 7 segment led display . If anyone knows i need a circuit diagram and components list to build it .PLEASE HELP!!!! :cry: :roll:

This one is grate for u

Jose Pino’s Projects » Tachometer/RPM with PIC

 

[3v0]

Lcds are easer to interface to, but, 7 Seg LEDs are larger and brighter.

For 7 Seg LEDs I use a MC4511
Interfaces?

Do you have a source for these. The major suppliers are no longer stocking many of the 7 seg parts.

 

[pasanlaksiri]

Do you have a source for these. The major suppliers are no longer stocking many of the 7 seg parts.

Nope. but come on man Those SSDs very easy to find. And that design is also supportable to CA and CC SSDs

Its working nicely

**broken link removed**

 

[3v0]

Nope. but come on man Those SSDs very easy to find. And that design is also supportable to CA and CC SSDs

The part can not be found at Digikey, Mouser, or Newark. A lot of the LED 7 segment parts are going out of production.

 

[pasanlaksiri]

The part can not be found at Digikey, Mouser, or Newark. A lot of the LED 7 segment parts are going out of production.

LED 7 segment parts are going out of production

Hmm r u really sure about that bro?

Because as i know there is no any other replacement for SSDs.

 

[3v0]

Hmm r u really sure about that bro?

Because as i know there is no any other replacement for SSDs.

LCD's, they are ubiquitous.

 

[pasanlaksiri]

LCD's, they are ubiquitous.

Nope ur WRONG. LCDs r not that much visible in bright day lights.

U ever cant Compair LCD with LED Disps

 

[nileshkhatti]

which microcontroller you r used plese send your source code so i am modified it into LCD display

 

[ice_muzic]

hi..we have the same problem..i used pic16f877a..thanks

 

[3v0]

First figure out how to run a display. This has been explained here and on the web numerous time.

The figure out how to use the PIC to count pulses or the time between them. This is also a common thing to do.

When you can do that the rest is easy.

 

[be80be]

Nope ur WRONG. LCDs r not that much visible in bright day lights.

You can see this lcd on any day it has a 4watt back light**broken link removed**