Good Lord... this tail lite thing is out of control!
Sent from my iPhone
> On Feb 12, 2020, at 6:11 PM, Ponostyle via Fot <fot@autox.team.net> wrote:
>
> Anytime the surf sucks in Maui Iâ??ve been working on control systems for
> the electrical stuff in the 1978 GMC moho Iâ??m updating. One component is a
> wireless brake/turn/tail/backup light using an ESP32. The turn signals are
> sequential. Seeing sequential turn signals in a little Lucas taillight would
> freak people out. If you werenâ??t going to do all the wacky wireless stuff
> it would be easy to combine features with an Arduino and a few MOSFETS, or
> better yet a mosfet board that includes opto couplers. The code is pretty
> simple, though my current version is written for using MQQT via
> wirelessâ??for any geeks out there.
>
>> On Feb 12, 2020, at 10:09 AM, Randall via Fot <fot@autox.team.net> wrote:
>>
>> I have my street TR3 wired that way; so the corner lamps do triple duty as
>> tail, stop and turn.
>>
>> You can buy a solid state device to do the conversion (commonly sold to
>> connect a "3 wire" trailer to a car that has separate turn and stop lights).
>> However, I did mine with relays. Initial conversion was done with only two
>> relays, but then when I started converting to LED lamps, I re-did it with 3
>> relays. Here's a brief schematic
>> https://i.imgur.com/WWBJhUE.jpg
>>
>> FWIW, this was done with no permanent modifications to the car or the
>> original wiring harness. The relays are mounted under the dash, out of
>> sight, on the back of one of the bolts that holds the brake pedal pocket
>> together. A new sub-harness runs from there up to the area where the
>> control head wires join the main harness, plus one wire to the brake light
>> switch. (Which in my case is still under the dash, as I converted to a
>> mechanically operated switch instead of the original hydraulic one.)
>>
>> The relays are just cheap automotive relays; couple buck each on flea-bay.
>> (ISTR I bought 10 of them, with sockets, for $20 with shipping. But I've
>> decided I don't like the sockets, so I just use quick connects to wire to
>> the relays.)
>>
>> -- Randall
>> 56 TR3 TS13571L once and future daily driver
>> 71 Stag LE1473 - awaiting engine rebuild
>> 71-2-3 Stag - awaiting gearbox rebuild
>>
>>> -----Original Message-----
>>> From: Fot [mailto:fot-bounces@autox.team.net] On Behalf Of
>>> Jack Wheeler via Fot
>>
>>> Has anyone with a street TR-2 or early TR-3 rewired the brake
>>> light so the outer lamp fixtures (tail lights) come on when
>>> the brake pedal is depressed?
>>
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>
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