| T O P I C R E V I E W |
| 77clubman |
Posted - Jan 11 2016 : 6:53:10 PM
Hey guys,
Restoring a 1977 mini clubman panelvan and am upgrading the lights to led and want to run the front parker lights as DRL as the new headlight inserts have a parker globe inside them but i need a circuit to dim/turn one off when i use the corresponding turn signal on that side.
Any help would be greatly appreciated. I can solder and stuff but as for actually what parts i require i have no idea. I like to dabble in lots of things and electronics is just one that i am really new too.
Regards
Craig |
| 6 L A T E S T R E P L I E S (Newest First) |
| Aaron Cake |
Posted - Jan 24 2016 : 10:19:48 AM
Looks fairly simple. There are many ways this can be done.
Descrete gates for example.
But, you will get the lowest component count if you do it in software. The ATTINY84 is a 14 pin DIP offering 12 I/O lines, which could easily handle this.
If you go that route, I've already done the hard work:
http://www.aaroncake.net/76cosmo/taillights
That circuit is basically what you would want. Just use an 84 instead of an 85 and build 4 opto coupler sections (there is probably even a multi-opto coupler IC). Instead of MOSFETs, just use cheap signal transistors (ie. 2N3904, 2N22222) to switch your headlight relays. |
| 77clubman |
Posted - Jan 21 2016 : 5:49:18 PM
@aaroncake i assume this is what you were meaning
Download Attachment:  truth.gif
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| Aaron Cake |
Posted - Jan 21 2016 : 11:39:02 AM
I might be misunderstanding what you want.
Can you maybe make a simple truth table?
All is possible with Arduino.  Whether one is required, that is the question. |
| 77clubman |
Posted - Jan 20 2016 : 04:59:14 AM
@aaroncake i was thinking that but the drl will flash as the power feeding the relay coil pulses.do you think its possible to use arduino to do this? If so i have some research to do. |
| Aaron Cake |
Posted - Jan 19 2016 : 10:07:38 AM
If I am parsing the question correctly, you want to have a light illuminated by default but then turned off when the turn signal is activated?
Probably the easiest way would be to power this light using the normally closed contacts of a relay and then have the relay coil connected in parallel with the signal lamp. |
| fastcars1173 |
Posted - Jan 18 2016 : 4:36:18 PM
This company has a system that is called switchback that goes from white driving lights and switches to amber when the signal is on. They sell the controller separately for $25. http://www.vleds.com/shop-products/v3-triton/controllers/v3-wa-cntrl-2-5.html |
