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9 Volt adaptor Sure?
Omega99 has good info !
I built the jaycar kit and I was tearing my hair out as to why the read LED was not flashing? The voltages checks were around the max232 chip measured @ 4.52 V.
I swapped the power adaptor with another 9 V and low and behold, the bugger started to work.
Final votage checks around the max232 were a steady 5V.
Now I can read the cards
Cheers
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