14 Threads found on edaboard.com: Tachometer Pic
Constant display of 3000 RPM seems to indicate 50 Hz hum but no tachometer signal at the counter input. Looks like a hardware problem.
Microcontrollers :: 05-01-2014 05:02 :: FvM :: Replies: 9 :: Views: 465
So I constructed this tachometer project (it can measure RPM using 3 methods but I just chose one of them which is by IR LED and Photodiode) and I'm really sure that I did it right according to the circuits schematic I got from an electronics magazine, but when I connect the power supply its just dead and nothing works at all, please look at both c
Professional Hardware and Electronics Design :: 02-14-2013 06:45 :: eng.mak88 :: Replies: 2 :: Views: 432
I've done some readings on how tachometers (as in automobile tachometers used to measure engine RPM) works. Apparently modern tachometers drive the needle from the signal received from its signal wire; which is a series of square wave pulses. If I'm not mistaken the frequency determines what RPM the engine is running. So as a holiday project (...)
Microcontrollers :: 12-07-2012 10:45 :: shsn :: Replies: 3 :: Views: 997
Hi I am new to microcontrollers and am trying to build a tachometer using the pic 16f690 with a reed switch and LCD display. I am having some difficulties trying to calculate the RPM of a shaft using one magnet and one reed switch. Any suggestion of how to write a program in assembly code to calculate the RPMs? I want the readouts to be valid be
Microcontrollers :: 04-04-2012 16:27 :: bignaka1 :: Replies: 5 :: Views: 1171
The following thread discusses implementation of a pic based tachometer using various sensors in great detail:
some questions motor speed monitoring
I would suggest reviewing the thread and posting any further questions you may have concerning the implementation of your tachometer.
Electronic Elementary Questions :: 02-07-2012 07:49 :: bigdogguru :: Replies: 2 :: Views: 1038
Here is a fairly in-depth discussion on the design of a tachometer with source code and schematics:
some questions motor speed monitoring
You find may example tachometer projects listed in this discussion thread as well.
Microcontrollers :: 10-25-2011 11:29 :: bigdogguru :: Replies: 5 :: Views: 1511
could you help me please to understand the assembly code of this LCD tachometer with pic 16F628
for example I don't undersand the use of blades and how it works ?
Hobby Circuits and Small Projects Problems :: 01-01-2011 04:36 :: serenity :: Replies: 5 :: Views: 2237
I have chosen to work on a small project - a DC motor controller - with the objective of building a tachometer with a pic MCU. But I have never designed with a DC motor before, and so I have no idea what the current (milliamps) and voltage that they can handle (max and normal operation). Can someone help?
I have attached a picture of the (...)
Hobby Circuits and Small Projects Problems :: 06-11-2010 12:31 :: louarnold :: Replies: 0 :: Views: 1218
Hi every body ! i have a project with 8051 . I want to design a tachometer . Many people use pic or avr but with me , i'm a newbie so i start learning MC with 89s52 and use assembly for programing . Program button and lcd is so so ! But i have trouble with counter in 8051 . Please show me how to count pulses in 1s -> pulses in 60s
Microcontrollers :: 02-20-2010 02:09 :: arun_9998 :: Replies: 1 :: Views: 2391
IM DOING A PROJECT WITH pic 16F84, IM TRYING TO MAKE A DIGITAL tachometer WITH A 2X16 LCD AND THAT CAN GIVE ME RPM AND RPS BY ACTIVATING IT WITH A DIPSWITCH AND USING AN OPTO BUT I HAVE NO IDEA HOW TO DO IT. COULD ANYONE HELP ME PLEASE
Hobby Circuits and Small Projects Problems :: 02-19-2010 01:21 :: autocrat :: Replies: 0 :: Views: 2624
I Looking for help on conditioning the signal comming from the positive side of a coil on a harley motorcycle.I want to use it with a 4n25 opto for a rpm gauge with a pic processor.Thanks in advance.
Analog Circuit Design :: 10-13-2007 15:03 :: gtx15 :: Replies: 0 :: Views: 976
This is my first post to this forum, so bear with me. I'm working on writing assembly code for a R/C microturbine tachometer. I'm very new to this so, I really could use some help. I'm using the pic 16F84A micro controller chip, compling the language with MPLAb IDE v 7.30 and assembling the data with Mplasm. I'm having a problem displayi
Microcontrollers :: 05-16-2006 21:09 :: desmop :: Replies: 1 :: Views: 1157
I'm also thinking about making a tachometer, but with a different approach. I would stick a ferromagnetic, kinda circle, to the rotating shaft, with one 'cut' into it. on one side of the circle put a small magnet, and on the other side a Hall sensor. The hall sensor would give u a nice pulse you can measure with a pic microcontroller for exampl
Hobby Circuits and Small Projects Problems :: 06-04-2005 13:06 :: chupos :: Replies: 11 :: Views: 9842
8) pic tachometer project
Hobby Circuits and Small Projects Problems :: 05-11-2003 09:43 :: HN :: Replies: 3 :: Views: 8803