technopengl
Member
Good evening,
I wish to make realize to my school kids (14 years old) an anemometer...
Three solutions:
1. With an "opto switch", this solution seems to me the best, but it seems difficult to realize by school kids, the assembly must be very precise...
2. With a mini alternator, but when there is a little wind, the anemometer does not turn...
3. With an ILS, as on the anemometer of a "Oregon" wather station ...
I make tests with one 08M and one 28X1 by using the command "count" (Count 1,1000, w0 )
-> ILS on the input, with a 10k connected on the +
The tests are not good...
" w0 " indicates me wrong numbers of pulses, I was able to observe the result by making turn slowly, I got along well the "tic-tic" of the ILS and the number of "tics" do not correspond to the debug value.
I conclude a problem from it of bounces!
My questions:
1. Has anybody another solution?
2. Did anybody try this last solution with a debounce network?
The idea to place a résisitor (560 ohms) and a capacitor (0,47µf) in parallels with the ILS slows down considerably the response time....
Thank you
techopengl
I wish to make realize to my school kids (14 years old) an anemometer...
Three solutions:
1. With an "opto switch", this solution seems to me the best, but it seems difficult to realize by school kids, the assembly must be very precise...
2. With a mini alternator, but when there is a little wind, the anemometer does not turn...
3. With an ILS, as on the anemometer of a "Oregon" wather station ...
I make tests with one 08M and one 28X1 by using the command "count" (Count 1,1000, w0 )
-> ILS on the input, with a 10k connected on the +
The tests are not good...
" w0 " indicates me wrong numbers of pulses, I was able to observe the result by making turn slowly, I got along well the "tic-tic" of the ILS and the number of "tics" do not correspond to the debug value.
I conclude a problem from it of bounces!
My questions:
1. Has anybody another solution?
2. Did anybody try this last solution with a debounce network?
The idea to place a résisitor (560 ohms) and a capacitor (0,47µf) in parallels with the ILS slows down considerably the response time....
Thank you
techopengl