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Imo the easiest way is to use a convertor module:
I have used these kind of device in the past to send data to a database on a network.
Here what I used: EZ Web Lynx - Home
code was really straight forward.
of course there are alternatives:
**broken link removed**
@keith1200rs: thx for the answer,
I will give a try with the filter and see what happen.
@FvM: yes the op amp is an njm062
here a link https://www.futurlec.com/Sanyo/NJM062.shtml
but the photodiode is the right way. It is used in reverse, It normally block
voltage, giving no current and if...
I have a circuit that has to receive a low-duty pulse, emitted from a IR LED 1-2 meters away. The wave does not use a carrier or any form of modulation so the receiver is also pretty simple.
The receiver use an IR photodiode of a matching wavelength. Here the schematic:
(or...
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