SECU-3 Lite ignition control unit

Discussing SECU-3 hardware
User avatar
STC
Posts: 13843
Joined: 30 Apr 2013, 23:41
Your CAR: AZLK 2140
SECU version: DIY SECU-3
Location: North Korea
Has thanked: 2160 times
Been thanked: 4335 times
Contact:

SECU-3 Lite ignition control unit

Post by STC »

Discussing SECU-3 Lite ignition control unit. It is cheap, simple and ignition-only ECU with embedded MAP sensor and coil drivers (BIP373).
SECU-3 Lite units are available for ordering. Only 60$.
We can send SECU-3 Lite to USA, Russia and other countries. To place on order, please write to order@secu-3.org.
http://secu-3.org/blok-mpsz-secu-3-lite/?lang=en
Page with other items available for order http://secu-3.org/order/?lang=en

Image
Image
Image

NOTE that some cheaters try to fabricate SECU-3 units or pass slightly modified versions as own developments thus violating my author rights! Be careful!
Author of the SECU-3™ project http://SECU-3.org. An open source engine control unit / Ignition control system, (C) 2007.
Клуб проекта в Facebook https://www.facebook.com/groups/secu3club
Клуб проекта ВКонтакте https://vk.com/secu3club (вступаем!)
User avatar
STC
Posts: 13843
Joined: 30 Apr 2013, 23:41
Your CAR: AZLK 2140
SECU version: DIY SECU-3
Location: North Korea
Has thanked: 2160 times
Been thanked: 4335 times
Contact:

Re: SECU-3 Lite ignition control unit

Post by STC »

This article can be useful http://secu-3.org/secu-3-comparison/?lang=en
Comparison of SECU-3 units
Author of the SECU-3™ project http://SECU-3.org. An open source engine control unit / Ignition control system, (C) 2007.
Клуб проекта в Facebook https://www.facebook.com/groups/secu3club
Клуб проекта ВКонтакте https://vk.com/secu3club (вступаем!)
User avatar
STC
Posts: 13843
Joined: 30 Apr 2013, 23:41
Your CAR: AZLK 2140
SECU version: DIY SECU-3
Location: North Korea
Has thanked: 2160 times
Been thanked: 4335 times
Contact:

Re: SECU-3 Lite ignition control unit

Post by STC »

Configuring SECU-3 Lite board:
Image
Author of the SECU-3™ project http://SECU-3.org. An open source engine control unit / Ignition control system, (C) 2007.
Клуб проекта в Facebook https://www.facebook.com/groups/secu3club
Клуб проекта ВКонтакте https://vk.com/secu3club (вступаем!)
User avatar
STC
Posts: 13843
Joined: 30 Apr 2013, 23:41
Your CAR: AZLK 2140
SECU version: DIY SECU-3
Location: North Korea
Has thanked: 2160 times
Been thanked: 4335 times
Contact:

Re: SECU-3 Lite ignition control unit

Post by STC »

Author of the SECU-3™ project http://SECU-3.org. An open source engine control unit / Ignition control system, (C) 2007.
Клуб проекта в Facebook https://www.facebook.com/groups/secu3club
Клуб проекта ВКонтакте https://vk.com/secu3club (вступаем!)
User avatar
STC
Posts: 13843
Joined: 30 Apr 2013, 23:41
Your CAR: AZLK 2140
SECU version: DIY SECU-3
Location: North Korea
Has thanked: 2160 times
Been thanked: 4335 times
Contact:

Re: SECU-3 Lite ignition control unit

Post by STC »

Bluetooth board for SECU-3 Lite unit with DIY polygon. Some optional components for connecting of a tachometer are also here.
Image
Image
http://secu-3.org/secu-3-lite-bluetooth-module/?lang=en
Author of the SECU-3™ project http://SECU-3.org. An open source engine control unit / Ignition control system, (C) 2007.
Клуб проекта в Facebook https://www.facebook.com/groups/secu3club
Клуб проекта ВКонтакте https://vk.com/secu3club (вступаем!)
User avatar
STC
Posts: 13843
Joined: 30 Apr 2013, 23:41
Your CAR: AZLK 2140
SECU version: DIY SECU-3
Location: North Korea
Has thanked: 2160 times
Been thanked: 4335 times
Contact:

Re: SECU-3 Lite ignition control unit

Post by STC »

Bare PCB for SECU-3 Lite.
Image
Author of the SECU-3™ project http://SECU-3.org. An open source engine control unit / Ignition control system, (C) 2007.
Клуб проекта в Facebook https://www.facebook.com/groups/secu3club
Клуб проекта ВКонтакте https://vk.com/secu3club (вступаем!)
Strecek
Posts: 1
Joined: 30 Nov 2017, 20:33
Has thanked: 1 time

Re: SECU-3 Lite ignition control unit

Post by Strecek »

Hello, I would like to use SECU-3 Lite unit to run Tatra V8 engine with eight pole VR sensor in distributor. (distributor with cancelled centrifugal and pneumatic advance regulator).
Please do you think its possible ? As I tried to check firmware and I found only Hall sensor version of distributor.
I would like to use dwell control as well.

Thank you
Strecek
User avatar
STC
Posts: 13843
Joined: 30 Apr 2013, 23:41
Your CAR: AZLK 2140
SECU version: DIY SECU-3
Location: North Korea
Has thanked: 2160 times
Been thanked: 4335 times
Contact:

Re: SECU-3 Lite ignition control unit

Post by STC »

Strecek wrote:Hello, I would like to use SECU-3 Lite unit to run Tatra V8 engine with eight pole VR sensor in distributor. (distributor with cancelled centrifugal and pneumatic advance regulator).
Please do you think its possible ? As I tried to check firmware and I found only Hall sensor version of distributor.
I would like to use dwell control as well.

Thank you
Strecek
Yes, it possible. You should connect your VR sensor to CKPSx inputs and use firmware for Hall (and use high voltage distributor). Also, you may need to solder 100k instead of default 470k (resistor R32). It may be necessary if your sensor is too sensitive.
Attachments
secu-3-lite-R32-1.jpg
Author of the SECU-3™ project http://SECU-3.org. An open source engine control unit / Ignition control system, (C) 2007.
Клуб проекта в Facebook https://www.facebook.com/groups/secu3club
Клуб проекта ВКонтакте https://vk.com/secu3club (вступаем!)
tmarkala
Posts: 5
Joined: 08 Dec 2017, 02:20
Your CAR: Nissan HP10 Primera
SECU version: DIY SECU-3
Has thanked: 2 times

Re: SECU-3 Lite ignition control unit

Post by tmarkala »

Hello!

I'm looking to convert Nissan SR20DE engine to carburetors.
Do you have any experience with Nissan CAS optical sensor which is located in distributor?
Could SECU-3 use its position signal?

Various trigger wheels can be used. For example:
https://www.diyautotune.com/product/50- ... or-ka24de/


Thanks
Tomislav
User avatar
STC
Posts: 13843
Joined: 30 Apr 2013, 23:41
Your CAR: AZLK 2140
SECU version: DIY SECU-3
Location: North Korea
Has thanked: 2160 times
Been thanked: 4335 times
Contact:

Re: SECU-3 Lite ignition control unit

Post by STC »

It doesn't matter which type of sensor used - VR, Hall, Optical. The configuration of trigger wheel is important. Trigger wheel shown on the picture has 2 sequences of 12-1 teeth and 1 gap for determination of 1-st cylinder for full sequential operation (2 sensors).
SECU-3 firmware should work with mentioned trigger wheel, but note that SECU-3 Lite has only 2 ignition outputs and you can't use full sequential ignition on 4-cylinder engine. You can either use SECU-3 Lite in semi-sequential mode or switch to use SECU-3T if you want full sequential. For semi-sequential operation one sensor is enough (reading of 12-1 sequences).
Attachments
2 x 12-1 plus gap for full sequential operation.
2 x 12-1 plus gap for full sequential operation.
Author of the SECU-3™ project http://SECU-3.org. An open source engine control unit / Ignition control system, (C) 2007.
Клуб проекта в Facebook https://www.facebook.com/groups/secu3club
Клуб проекта ВКонтакте https://vk.com/secu3club (вступаем!)
Post Reply

Return to “Hardware”