Using Analog Comparator to read a PWM analog signal?
Steel
Posts: 313
I have an RF Module that outputs the RSSI (Recieved signal Strength indicator) in a PWM signal.
The wave can be from 0% to 100% duty cycle.
I would like to use the 8-Bit ADC converter example to have my SX read the analog value from that PWM signal.
I have attached the circuit that I want to run.
With a PWM comparator using a PWM signal, is there potential for noise or mis-readings from a PWM signal?
Please help.
Shaun
The wave can be from 0% to 100% duty cycle.
I would like to use the 8-Bit ADC converter example to have my SX read the analog value from that PWM signal.
I have attached the circuit that I want to run.
With a PWM comparator using a PWM signal, is there potential for noise or mis-readings from a PWM signal?
Please help.
Shaun
pdf
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Comments
PWM is already a digital signal. Why would you want to convert it to analog, then read it with an ADC ?
Just measure the on-time and off-time. Or am I missing something ???
Bean.
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Sorry about wasting bandwidth.
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