DIY hand held Hall Effect tach with Arduino

[RM-MN]

I have made a few different projects using the Arduino or ESP series. I look at the list of example programs (called sketches) and compare what they do to what I want, then copy and paste sections to get close to what I want, then code from there.

 

[ajoeiam]

I have used the Arduino for many projects, CNC Control of a long-arm quilting machine, many lighting controls for shutting off the lights etc in the shop, Temp control for radiant heaters that were manual control originally, Contol system for use in converting a central AC system to a heat-pump.

The most complex control was for my Processing furnace for aluminum, It is running on a Arduino MEGA2560, with t-couple sensors in the poo and flue, it controls 2 waste oil burners with variable firing rate,750kbtu to 20kbtu with propane start and stabilization, the waste oil is preheated to 160F for winter operation. This furnace will melt 150-200 lb per hour, total process time including melting and ingot pouring is 2.5 hours.
My processing busineess is getting to the point I'm going to need to sell it, Im 72 and it is taking all my energy to run it so I don't get to do muche fun machining etc. I sell betweed 2.5 and 3 tons per year of ingots. I will need to rebuild the control system to include 2' X 3 inch screen and keypad for adjusting set-points etc and viewing operational conditions as well as the ability to manual override if necessary, the old system required the laptop to monitor or change any settings.

My other project is a totally programmable lead screw control for my 12 x 36 atlas lathe with metric and imperial feeds as well as slow cutting rate for clean cuts.

I'm willing to share code etc, as well as other questions. I don't want to steal this thread so IF there is a desire for further discussion I will open a new thread.

Please - - - - new thread!

(What's your source for all those aluminum heads?)

 

[Richard Hed]

@Richard Hed , have you got the Arduino IDE (i think that means independent development environment, but the name doesn't matter) loaded onto your laptop, along with a USB cable to plug into the Arduino? The IDE is downloaded from the Arduino.cc site.


EDIT- I am pretty much a novice but can fumble thru a project. Each problem solved is a learning experience.

ARGH! I am presently in Moses Lake, the arduino is in Nevada. I'll be back on the 15th Jan. But your info is great. Thanx

 

[Randoo]

I built a timer using an Arduino. One of those things that I could buy easily but where's the fun in that. Spent quite a bit of time writing the program as I'm a relative newbie. Got it working with start, pause, stop/reset buttons and display. Every 5 minutes it writes the elapsed time to eeprom so I can remove power and still have a close total time. I use it keep track of long projects that take days or weeks. Then I heard that Chatgpt can write programs. I started with a few components and had Chatgpt add items until I had a complete program. Took a fraction of the time. Loaded it into Arduino IDE but when I verified it there were mistakes. Worked through them and got it to work. I think I would have saved time by starting with Chatgpt and working through the bugs as it gave a decent start. This was 2 years ago and Chatgpt probably has learned to do better.

 

[timo_gross]

ARGH! I am presently in Moses Lake, the arduino is in Nevada. I'll be back on the 15th Jan. But your info is great. Thanx

Buy new one they are cheap and you will "need" it anyway.

 

[Richard Hed]

Buy new one they are cheap and you will "need" it anyway.

LOL. It won't get here before I leave back to Nevada.

 

[RM-MN]

And MANY thanx for the photo. It looks exactly like what I have. Many of the items, I could recognize the parts on the little boards but many I could not.

Be aware that many items in the kits are probably ones that could not pass quality control. I have found a few that are definitely defective. For instance, a DHT22 temperature/humidity sensor that shows the approximate temperature but off by a few degrees from other thermometers that is supposed to read to -40 but when the temperature goes below freezing point of water, shows the temp to be -5487. One of the joysticks is extremely non linear. A proximity sensor that works just fine....sometimes.

The kits do introduce you to a lot of hardware that you probably did not know about and once you find out what it is and supposed to do, you can experiment with it and then if needed, buy a new one that does pass quality control.