mjruotolo Posted March 29, 2013 Report Share Posted March 29, 2013 Title says it all. How does it work. I have an avh 5500 and want to make my own bypass Quote Link to post Share on other sites
mdbuilder Posted March 29, 2013 Report Share Posted March 29, 2013 It is basically a NO or normally open switch, power comes on, it waits a bit, the switch closes then re-opens. That is the regular micro bypass, the AVH 8400 requires a double pulse so same thing - power on, wait a bit, switch closes, switch opens, switch closes, switch opens. Not sure if the 5500 needs the single or double pulse. Also, I have a 4400 which needed a single pulse bypass but then I installed the separate nav module and it needed a double pulse bypass with the navigation installed. Quote Link to post Share on other sites
mjruotolo Posted March 29, 2013 Author Report Share Posted March 29, 2013 Does this happen continually the sequence? I wang to make my own. Quote Link to post Share on other sites
mjruotolo Posted March 29, 2013 Author Report Share Posted March 29, 2013 Ok so it looks like I am able to simulate the bypass with my arduino. Now I just need to finder a cheaper way to make it Quote Link to post Share on other sites
biggjerry Posted April 23, 2013 Report Share Posted April 23, 2013 i Have a avh-5500bhs and am interested in making my own bypass as well. Can i just pulse 12 volts or negitive wire to the parking brake wire ? how exactly does it work ? Quote Link to post Share on other sites
mjruotolo Posted April 25, 2013 Author Report Share Posted April 25, 2013 i Have a avh-5500bhs and am interested in making my own bypass as well. Can i just pulse 12 volts or negitive wire to the parking brake wire ? how exactly does it work ? Currently I am using a arduino and a transistor. I am powering the arduino from the amp turn on wire from the head unit. I just wrote a simple code to pulse to ground the ground wire. Really easy Quote Link to post Share on other sites
mjruotolo Posted December 23, 2013 Author Report Share Posted December 23, 2013 Here is the long awaited update. Here are some photos of my bypass. Cost me about 5 bucks to make. Its an arduino pro mini. Its knock off arduino i got off ebay. Once I have the code profected I post the code. I will be testing it tomorrow on my avh-x2600bt Quote Link to post Share on other sites
technologiq Posted December 23, 2013 Report Share Posted December 23, 2013 I had a 'regular' bypass that I had used for a Sony XAV-602BT that was just a relay. Initially when I got a AVH-8500BHS I used my old bypass and put a switch on it so I could flip it the second time. Ended up installing a Microbypass last week. It's such a small convenient package I couldn't justify building my own. Quote Link to post Share on other sites
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