Re: [Fot] Technical Question

["Barr, Scott via Fot" <fot@autox.team.net>]

I understood 31% of the words in Bill's post.  Isn't The MOSFETS a Moroccan 
street gang?


-----Original Message-----
From: Fot <fot-bounces@autox.team.net> On Behalf Of John H. Hasty via Fot
Sent: Wednesday, February 12, 2020 5:15 PM
To: Ponostyle <ponobill@gmail.com>
Cc: Fot <fot@autox.team.net>
Subject: Re: [Fot] Technical Question

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://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fi.i
>> mgur.com%2FWWBJhUE.jpg&amp;data=02%7C01%7Csbarr%40mccarty-law.com%7Ca
>> 02ecb1255364e7b637e08d7b0116973%7C5027ac9b577b4efca8a99ee22eb53484%7C
>> 0%7C0%7C637171461142229208&amp;sdata=ApW6F73vWaN9SYlQjCjiN6SZ8lmg%2Fq
>> TfwPhBzwzHhhY%3D&amp;reserved=0
>> 
>> 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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