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Digital multimeter for your car
DIY LED Tachomter (RPM gauge)
instead try connecting those terminals to battery and add a seperate key for the tach.. that would be simple!
that would we make your entire circut less reliable. the voltage drop would not be absorbed easily in 555. LM2917 regulates a potential of 9v and your source is 12v. so always LM2917 is prferable.
DIY LED RPM gauge
Digital speedometer, tachometer & engine temperature display
is it possible to adjust led intensity as the rpm increases, as I want this for my motor cycles light graphics to to be at max brightness at full speed and off under 1k.
how did you put the 47k trimpot? i think the trimpot will burn if the voltage is too high
you can just jack up the rear portion of your car since your car is an RWD, jack up your rear wheels until fully hanging up then startup the engine and step on the throttle like you do on highways and watch the speedometer until it reaches 160 :D
the stepper motor you used, is it DC volts output? or AC Volts?
i reallly intested to this project， but unfortunally im not good in electrical job， may i buy complete project with you ？by paypal or else？kindly to email me if possible to buy from you：firstname.lastname@example.org will be wait for your reply thank you very much
May I ask what car did you use? Im planning to make this circuit for my car also
Oh i forgot to read the title sorry haha
hello Hebo. how you can get the the scales on the photo paper , do you use a printer?
Using a stepper motor as automtive speed sensor
Aurora 9x18 RGB LED art
How to build a Daft Punk Table Replica
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