Search found 86 matches

by Yvan
Tue Mar 22, 2011 7:28 am
Forum: New Project Suggestions
Topic: Electronic Controlled Automatic Choke Control
Replies: 36
Views: 72633

No, nothing specific. I guess that someone with more knowledge than me (I already wrote that I copied most of the circuits and code from the different locations on the Internet) could easily spot a weak point. Perhaps not.

Anyway, I hope that someone will find what I posted usefull.
by Yvan
Fri Mar 18, 2011 8:32 pm
Forum: New Project Suggestions
Topic: Electronic Controlled Automatic Choke Control
Replies: 36
Views: 72633

Comments and suggestions are appreciated.
by Yvan
Fri Mar 18, 2011 8:32 pm
Forum: New Project Suggestions
Topic: Electronic Controlled Automatic Choke Control
Replies: 36
Views: 72633

My programing skills are about the same as my electronic design skills: I copied most of it from the circuits I found on the Internet, and adapted it for my needs. Comments are probably misspelled. And It could be done much easier, cleaner, better... But it works for me (again so far only on the ben...
by Yvan
Fri Mar 18, 2011 8:27 pm
Forum: New Project Suggestions
Topic: Electronic Controlled Automatic Choke Control
Replies: 36
Views: 72633

Hi Brent, you replied to this thread both time while I was writing (and since English is not my native language it takes some time). :-) I know that I can use some other chip, but than I must design new board. This one is designed for stepper motor, and it worked well on the bench, but big dissapoin...
by Yvan
Fri Mar 18, 2011 8:12 pm
Forum: New Project Suggestions
Topic: Electronic Controlled Automatic Choke Control
Replies: 36
Views: 72633

I took this (four pin) one apart, and and two pins are power for DC motor, other two are for the switch that can be used to sense when the switch is looses contact with whatever it is with contact with when it retracts (or when it comes back in contact when turning the other way). Six pin ones seems...
by Yvan
Fri Mar 18, 2011 3:50 pm
Forum: New Project Suggestions
Topic: Electronic Controlled Automatic Choke Control
Replies: 36
Views: 72633

You just need some timing software.. if High-Current continuously for >x sec then stop type stuff.l Yes I am going that way, but I need to solve few questions: - how long do I let current to be high without burning L293B IC - when I stop the motor I can not control idle - for how long do I stop the...
by Yvan
Fri Mar 18, 2011 6:02 am
Forum: New Project Suggestions
Topic: Electronic Controlled Automatic Choke Control
Replies: 36
Views: 72633

Add a low value current-sense resistor inline with the motor, amplify the signal with an op-amp and feed it into an analog input on the arduino. Measure the voltage while moving, if it reads too high, you know you have hit the motors limit (or have a mech problem), so stop moving. I already did thi...
by Yvan
Thu Mar 17, 2011 9:11 pm
Forum: New Project Suggestions
Topic: Electronic Controlled Automatic Choke Control
Replies: 36
Views: 72633

If someone is interested, I designed and build arduino schield for idle control and DRL (daytime running lights). I tried to control idle position of the carburetor throttle plate with little step motor that is used in FI systems for idle control but as a valve controlling how much air is bypassing ...
by Yvan
Mon Dec 06, 2010 4:28 pm
Forum: Assembly
Topic: tacho pick up
Replies: 1
Views: 8472

TACH OUT on the MJLJ module V3. Probably the same for V4.
by Yvan
Fri Aug 27, 2010 5:01 am
Forum: New Project Suggestions
Topic: Electronic Controlled Automatic Choke Control
Replies: 36
Views: 72633

So then peeps give me your ideas on:- Shall I incorporate a pot to adjust the temperature at which to turn on/off the idle system for quick easy changes (ie winter/summer)??? Aswell as a serial/usb connector to intially set it up and fine tune. Yes. or shall i give it an rpm input so it can stabili...
by Yvan
Sun Apr 25, 2010 11:53 am
Forum: Assembly
Topic: Connector spades
Replies: 8
Views: 17408

It was long time ago, but IIRC you can get these (along with the wires) from a PC power supply - connector for the motherboard. I have mjlj V3, not sure how it is with V4.
by Yvan
Thu Feb 25, 2010 9:32 pm
Forum: Operation
Topic: MJL v3 problem
Replies: 22
Views: 14330

Perhaps your 9V battery is bad? If you have analog multimeter, set it to ~500mA and briefly touch battery terminals. It should jump fast to the max, and that shows that battery is good. Or just try with the car battery. In Serbian: Šta bi, spalio si paljenje? :shock: :D Probaj lepo sa akumulatorom, ...
by Yvan
Mon Oct 26, 2009 6:03 am
Forum: Q&A
Topic: Cooling fan control
Replies: 20
Views: 37342

This is interesting, but isn't 70 deg Celsius a bit low for auxiliary fan to kick in? Can you get 80 or 90 deg Celsius versions?
by Yvan
Thu Oct 22, 2009 6:04 pm
Forum: New Project Suggestions
Topic: Mac software
Replies: 7
Views: 16508

Spockie-Tech wrote:Has anyone tried running the Tuning software inside a Virtual Machine ?
I did, and it works perfectly. Debian linux, and VMware. I have serial port, so no info about USB-Serial adapters.
by Yvan
Fri Jul 31, 2009 7:54 pm
Forum: Future Upgrades
Topic: V3.3.0 firmware / configuration software - for V3 hardware
Replies: 90
Views: 213269

I can confirm that user configurable outputs problem is gone. :D Now it works as it should, switches on above set temperature, and off below.

I can finally use this feature to switch on/off my auxiliary fan for a/c, so that I do not have to do this by hand. 8)

Thank you Brent!