Differences

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--- megacode [2014/12/28 22:05] – [ACT-34B] kingkevin
+++ megacode [2014/12/30 14:46] – at 31c3 talk kingkevin
@@ Line 1: / Line 1: @@
 The [[http://www.linearcorp.com/|Linear]] [[http://www.linearcorp.com/radio_control.php|remote control]] solution from the [[http://www.linearcorp.com/radio_control.php#megacode|MegaCode series]] was used in the facility complex I was living for a short while, and I wanted to know how secure it is. Thus I reverse engineered it.
+At [[https://events.ccc.de/congress/2014/Fahrplan/events/6462.html|31c3]] I gave a [[https://media.ccc.de/browse/congress/2014/31c3_-_6462_-_en_-_saal_2_-_201412292245_-_megacode_to_facility_gates_-_kevin_redon.html#video|short talk]] about how to clone and record codes.
 In [[https://www.cuvoodoo.info/?post_type=podcast&p=69|episode #004]] I presented how the transmitting part works, and how to clone the radio remote controls. In [[https://www.cuvoodoo.info/?post_type=podcast&p=41|episode #005]] I presented how the receiving part works, so to record codes and analyze them.
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 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.
+The original way the codes are recorded by the device in the EEPROM is described in the [[https://git.cuvoodoo.info/kingkevin/megacode/blob/master/README.md|README]]
+==== 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.