Guest |471| Posted May 11, 2011 Report Share Posted May 11, 2011 OK I need to add a switch for dual maps in my EVO 9, I am currently using a V44 plug in board, will then drop it up for the tuner to set up. Having done a bit of reading it looks as though a Digital input could be used but DI1-6 are used ? I have been given the XS Loom (expansion connector) assume this is needed ? how is the switch best set up, ie to ground ? Thanks for any help. Quote Link to comment Share on other sites More sharing options...
rayhall Posted May 11, 2011 Report Share Posted May 11, 2011 Volt 6 is available on the expansion connector. This can be used as a switch input for your dual maps. The Volt input will need a pullup resistor added. This is a 1k 1/4w resistor connected to the 5 volt output on the expansion connector and the Volt 6 wire. You would connect the Volt 6 wire to a switch that is connected to ground on the other side. In the software select Volt 6 as a GP Input. Then setup a Virtual Aux output as the switch input. If you send me your map, I will set this up for you. Ray. Quote Link to comment Share on other sites More sharing options...
Guest |709| Posted June 16, 2011 Report Share Posted June 16, 2011 What about if you want to add a switch and you do not have this expansion connector ? I have his factory switch with 4 settings that normally controls headlight height. Simple switch that simply connects 1 wire to 4 seperate wires (4 settings) and 2 wires for illumination. I would love to use this switch to switch between 2 maps, and 1 setting to active Launch control. From what i read is that you can add resistors to each setting wire and make different voltages for each setting and program the system to recognise them and appoint them ? Ray, could you give me a short walkthrough on how to do this ? Quote Link to comment Share on other sites More sharing options...
Guest |709| Posted June 22, 2011 Report Share Posted June 22, 2011 Anybody ? Quote Link to comment Share on other sites More sharing options...
rayhall Posted June 22, 2011 Report Share Posted June 22, 2011 This will give you two voltages on Volt 6 input. First position will be 5 volts and position two will give around 2.5 volts. Quote Link to comment Share on other sites More sharing options...
Guest |709| Posted June 23, 2011 Report Share Posted June 23, 2011 Thanks Ray ! And i could add for a 3rd and 4rd different voltage aswell (in this example) right ? Then i would have to program Vi-pec to look for these specific voltage and assign them to specific mappings ? Quote Link to comment Share on other sites More sharing options...
rayhall Posted June 24, 2011 Report Share Posted June 24, 2011 Yes by adding combinations of resistor you can get four different voltages. The 10k resistor should always be used. Change the resistor connected to ground get the different voltages. Ray. Quote Link to comment Share on other sites More sharing options...
Guest |709| Posted June 24, 2011 Report Share Posted June 24, 2011 Should there be a minimal voltage difference between 'settings' in order for the system to recognize them ? For instance, is 1 volt difference enough (setting 1= 2.5 V 2=3.5 V 3=4.5 V). Any tips on calculating the correct resistors ? ( I triend V=IxR) but somehow i cannot work it out in your example with the resistor connected to ground). Quote Link to comment Share on other sites More sharing options...
rayhall Posted June 24, 2011 Report Share Posted June 24, 2011 The two resistors with one connected to ground is called a voltage divider. This website has a calculator to give you the volts. http://www.raltron.com/cust/tools/voltage_divider.asp Yes 1 volt is more then enough difference. Ray. Quote Link to comment Share on other sites More sharing options...
Guest |709| Posted June 25, 2011 Report Share Posted June 25, 2011 Thanks a million Ray ! Your support is second to none :idea: Quote Link to comment Share on other sites More sharing options...
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