Datatek
Well-Known Member
- Posts
- 44,888
- Location
- Near Poitiers SW France
Totally reliable and no electronic jiggery pokery to give you grief
P38A tapping into BECM signals with an arduino
- Thread starter TallPaulB
- Start date
This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
tomcat59alan
Well-Known Member
- Posts
- 18,611
- Location
- wirral and triquivijate
I would have said ,according to the last part of his post he was being pedestrian Tony.Now you're being pedantic.
- Posts
- 58,170
- Location
- Preston Lancs.
I would have said ,according to the last part of his post he was being pedestrian Tony.
Nothing worse than a pedantic pedestrian.
- Posts
- 12,634
- Location
- Sud ouest France !
On a mobility scooter!!Nothing worse than a pedantic pedestrian.
No offense to anyone who has one
- Posts
- 58,170
- Location
- Preston Lancs.
On a mobility scooter!!
No offense to anyone who has one
I have one of them, lad bought it me. Buggered without it going up and down to my garage to be fair.
- Posts
- 12,634
- Location
- Sud ouest France !
Is it a V8 or diesel wammers?I have one of them, lad bought it me. Buggered without it going up and down to my garage to be fair.
- Posts
- 58,170
- Location
- Preston Lancs.
Is it a V8 or diesel wammers?
Lectricery.
- Posts
- 12,634
- Location
- Sud ouest France !
- Posts
- 58,170
- Location
- Preston Lancs.
See if our bloke can tap into its becm??
You might get folding mirrors out of it
Can manage the mirrors. Can't see that a phone call at 3 AM that you had left the lights on would go down to well either if you forgot to switch them off at 10 o'clock. I tend to be able to detect if the lights are on or not. 25 mile range and 8 MPH terminal speed, it's a doozer.
kds
Well-Known Member
- Posts
- 2,262
- Location
- old,ugly, tired in Lincoln.
Wow 25 mile range, thats a bloody long bit of cable its got on it.Can manage the mirrors. Can't see that a phone call at 3 AM that you had left the lights on would go down to well either if you forgot to switch them off at 10 o'clock. I tend to be able to detect if the lights are on or not. 25 mile range and 8 MPH terminal speed, it's a doozer.
- Posts
- 58,170
- Location
- Preston Lancs.
kds
Well-Known Member
- Posts
- 2,262
- Location
- old,ugly, tired in Lincoln.
So do you tow a genny behind it then to top up the batteries, I`m just checking out the options for when I get mine.Fortunately it uses batteries and not a mains lead.
biketeacherdave
Well-Known Member
- Posts
- 4,885
- Location
- south east london
Why........just why ?
- Posts
- 19,297
- Location
- Buckinghamshire, UK. ('95 DT)
Because he's too ****ed to walk to the garage.
[EDIT: doesn't like ****ed so we'll say inebriated.]
TallPaulB
Active Member
- Posts
- 146
- Location
- Manchester, UK
So.... I went with just checking if the ignition is on to trigger fold / unfold (there's also a button you can press)
https://photos.app.goo.gl/qshLHKa2wYzqBdB1A
They're Discovery 2 mirrors. If you saw off the bottom half of the ally bracket it slides nicely into the plastic bit from the P38, then it's just a case of wiring it all up. I used an Arduino and a couple of relays for that.
https://photos.app.goo.gl/qshLHKa2wYzqBdB1A
They're Discovery 2 mirrors. If you saw off the bottom half of the ally bracket it slides nicely into the plastic bit from the P38, then it's just a case of wiring it all up. I used an Arduino and a couple of relays for that.
Pete The Biker
Active Member
- Posts
- 536
- Location
- Leicestershire
Good work. And don't let anyone put you off your investigations - if you don't explore you don't learn. Andy by exploring you have proved that electric folding mirrors can work - so onwards and upwards!
Pete
- Posts
- 3,878
- Location
- Near Heathrow.
Should have done pictures to show which bit you "sawed off" !!
TallPaulB
Active Member
- Posts
- 146
- Location
- Manchester, UK
It's pretty straightforward, the disco 2 bracket tapers from the outside to the inside (nearest the car is thickest). You just need to cut the whole thing down so it's one thickness, start with your blade flush to the bottom of the bracket at the outside edge and cut downwards so you're cutting the taper off.
If anyone's got a broken wing mirror off a discovery II they want to send me I can do it again and take pictures
- Posts
- 3,878
- Location
- Near Heathrow.
Was also wondering why you used Arduino rather than £15 disco Ecu ?
TallPaulB
Active Member
- Posts
- 146
- Location
- Manchester, UK
The Arduino board I got for £3? Hmm...
Seriously though I did buy an ECU and switch from a disco but a) the switch isn't debounced, so it's a pain to consistently press it for just the right amount of time. b) it doesn't trigger with ignition on / off (as far as I know) and c) the connectors are a pain to source so you either have to make your own connectors or do some fiddly soldering on the switch and the ecu.
Also the Arduino has 5 or so GPIOs spare, and WiFi in case I want to do anything else with it.
This is the board I used:
https://m.ebay.co.uk/itm/UK-NodeMcu...490456?hash=item3d71565d58:g:VsMAAOSwkY9bfibJ
