I made an Arduino serial optical isolator using optocouplers. When trying to read data from serial monitor using parallax, I get error saying data < ascii 10 or > ascii > 200. Could it be because of an inverted Rx/Tx signal?
Where do you see this error ?
Is your opto-coupler inverting? It's possible to wire an opto-coupler either way... Schematic & P/N?
There is an extra > in that line.
data < ascii 10 or ascii > 200
Makes some sense.
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When i try to read data with the extension in excel.
Yes, the circuit is inverting, but i don’t know if that is causing the issue.
My bad, the error is displayed when i try to read from serial monitor in excel with a parallax(PLX-DAQ)extension.