Automation, sensing and robotics • Re: How to get reading from LDR Matrix

To read an array of analogue devices use analogue multiplexers to connect the row and column of each device in turn to an ADC.
You could use one transistor to switch a reference voltage to the rows (or columns) and a multiple input ADC to read the columns (or rows)
8 and 16 channel ADCs are readily available so you just have to switch the reference to the other side of the device

Maybe...
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Statistics: Posted by PiGraham — Fri Nov 22, 2024 11:05 am

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