Differences

This shows you the differences between two versions of the page.

--- megacode [2014/12/28 22:05] – [ACT-34B] kingkevin
+++ megacode [2014/12/28 22:12] – [MDR] kingkevin
@@ Line 181: / Line 181: @@
 All codes are read out over I²C when the board is powered up.
 They can be recorded/transferred on the PC using a logic analyzer.
+==== MDR-U ====
+The MDR-U is basically the same as the MDR.
+The board is different, but the peripheral and connections around the micro-controller.
+It uses more surface mount components.
+It is powered through the mains (CAUTION: neutral is used as 0V).
+Same as for the MDR, I de-soldered the PIC16C54A micro-controller and replaced it with a pin compatible PIC16F1847 (SOIC version).
+The firmware is the same as the MDR.