Les Fackrell
- Nov 26, 2016
- 1
- Joined
- Nov 26, 2016
- Messages
- 1
I am in the market for a replacement multimeter and I have noticed that some have a frequency counter. This made me wonder if a simple circuit using a light dependent resistor, some shiny sticky tape and a battery would make a signal that the meter could Count? If the reflective tape were stuck on the spindle and a light shone on it, the LDR would change its resistance depending on the reflected light. Would this make a signal that the meter would pick up?
You will probably guess that I am a complete novice in electronics. (I am aware that you can buy a tachometer cheap as chips on Ebay but I just wondered)
Les
You will probably guess that I am a complete novice in electronics. (I am aware that you can buy a tachometer cheap as chips on Ebay but I just wondered)
Les