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Arduino Digital Car RPM Part 1
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- Опубликовано: 17 авг 2014
- This is my first Arduino project. An Arduino powered digital RPM and speedometer. I still haven't completed this 100%, but I thought of sharing what I have done with you guys.
Please note that some of the codes of this project I have taken from internet. So credits for them go to those developers.
You can get my codes here:
github.com/vaj...
RPM codes:
jonduino.weebly...
kokoraskostas.b...
Special thanks to Jon here for helping me out with some information.
• Arduino Shift Light Co...
This was far better than others on RUclips
Well done. Don't ever apologise for your English again!!!!! you explained very well and helped me out. Thanks.
Excellent, Thank you for sharing your project. I am also building a digital speedo with 7 segment display and MAX 7219
That's good to hear. Let me know how it goes. :)
why you need a rotary encoder? have i to put it too?
great. planning to do the same here. thanks for sharing
Great work! I'm also looking to use an adruino tachometer but for a motorbike.. So thanks for sharing your idea ;)
You can use the same setup with slight modifications to the code...
Can you explain what that transistor does? Collector is grounded, base is the RPM signal and emitter is on the arduino pin D2. Can I hook up the RPM signal directly to arduino pin D2? If not, what does this transistor do?
And is this signal just higher voltage when RPM rises, or does it change frequency?
Keep up the good work. All the best.. (y)
this is my dad🐼🕶
why do you need a rotary encoder? is it only for simulation?
You have a bad read RPM at 3:16
1795 RPM , 844 RPM, 710 RPM, 1296 RPM and your engine is accel not down rpm.
+Camilo A. Camacho I would imagine its electrical noise in the signal line. None of his connections where solid or permanent. Hopefully when he does or did the permanent install it went away. It could possibly be in the code but who knows.
I love Arduino car projects that don't rely on OBD2. Makes the project universal and can work on pre 95 cars or cars with aftermarket computers as well.
Well ,u could just connect the arduino to the ignition coil and calculate rpm from there.....works for cars which don't have ECUs....
can you explain what you want to say.
Nice project.
What is mean pin 1 (number of chips) in code?
Where dose it connect to segment display?
Hello machan, here LedControl(12, 10, 11, 1); 1 means number of LED controller chips. Because you can chain more than one display chip. Refer to image below to see connections.
plus.google.com/photos/photo/108130537688137528298/6041812431887116850?icm=false
Well bro,
I haven't to access upper link.Whatever, it's mean pin 1 no need to connect the max 7219 display.
Check the link now.
plus.google.com/photos/photo/108130537688137528298/6041812431887116850?icm=false
That link worked. Thank you for your help.
Is there a way to increase the refresh rate, or are you limited by the car's hardware?
Which refresh rate are you referring to? LED display? If so yes you can control the value display rate within your program flow. But I do not think you can change the refresh rate of actual LED digits.
Im referring to how often the data is refreshed from the ECU. I think it is limited to the OBDII refresh speed.
I'm not using OBD2 connection in this one. Instead I use ignition connection to count pulses.
Sorry for my bad English :)
SHALL I HAVE THE CODE FOR THIS ONE
Link is in the description.
Your English ain't bad tho
awesome, I need something like that for my Knight Rider car. Can you share a code for something like this. You can see my KITT car just google FotoRider to see my car, thanks in advance ;-)
Hi, the link is in the description. Let me know how it goes... :D
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