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--- gca41-en [2020/01/13 11:28] – typo smitt48
+++ gca41-en [2023/08/16 10:28] (current) – [Compatibility with 3,3V systems] rjversluis
@@ Line 28: / Line 28: @@
 It will not pass this information through until it is asked for, so we need a bidirectional communication \\
 to get the value of the tag, and, if available, pass it through to CAN-GC4 and/or GCA_PI01.\\
-CAN-GC4 was not made for that, not possible even, and for LNet there was no solution anyway.\\
+CAN-GC4 was not made for that, not possible even, and for LocoNet there was no solution anyway.\\
 The development of such a little interface was pretty easy since there are Arduino nano boards to fix that.\\
 This GCA41 board is just a shield for an Arduino Nano, creating an interface between RC522 sensor and CAN-GC4 or GCA_PI01.\\
 Communication between Nano and RC522 is done by SPI, which guarantees suitable speed .\\
-For use of RFID with LNet, please refer to {{GCA51-en|GCA51}}.\\
+For use of RFID with LocoNet, please refer to [[GCA51-en|GCA51]].\\
 \\
+===== Compatibility with 3,3V systems =====
+Up until now, only some WIO units are using 3,3V power.\\
+This board will not work with 3.3 V systems directly, only when RC522 receiver is made\\
+for it, and the GCA41 needs modification.\\
+Please ask [[peter.giling@rocrail.net| Peter ]] for advice..\\
@@ Line 58: / Line 63: @@
 To make it simple for programming the Nano.\\
 The zip file above also contains a //rfid2_ser.ino.eightanaloginputs.hex// file.\\
-Download, install and execute the program Xloader here {{:http://www.hobbytronics.co.uk/arduino-xloader}}\\
-Then use it to program the hex. file via USB, no Arduino program needed.\\
-\\
 ====Libraries====