Cheap barrel smoke

[ankh]

Currently we have two main options for barres smoke:
- wire directly additional smoke unit to the smoker port (heater CN 11) and BB port (motor to CN10) - this is either very short puff (when BB not in use) or far too long with stock configuration (BB enabled via the switch)
- buy special circuit which is rather expensive and hard to get

I did in the past a mod using Arduino but this may not be for everybody (https://youtu.be/wfzIjgGD-kM).
Here is a cheap and easy solution which requires pretty much no soldering.
All you need to do is to connect additional time delay board (widely available, some links with examples below). The power for that circuit comes either from Wi-fi port CN5 (G+S to switch on/off), also wire the heater as per diagram below.
The program I use is 2.2, then set up start delay called OP (I set it to 0.2s), and running time CC (0.4s) - plenty of tutorials on youtube. Gun flash LED as usual to port LED1. Bridge port CN6 (BB switch).
The diagram below shows board 7.0 but this will work with any 6.0 or higher or similar boards.

How this works: when you press fire buttons, CN10 is powered on sending voltage signal to the board, gun LED flashes. After predefined time (OP) the board powers the smoker motor pushing the puff for short time you set (CC). Don't forget about bridging CN6 port. Keep in mind the smoker heater and the board must be on (G+S on the remote) and the heater works constantly (same as with the dedicated barrel flash circuit)

Barrel smoke relay delay2.jpg (135.52 KiB) Viewed 7359 times

A video:

phpBB [video]

And finally links to the board I got but do your research as prices may have changed since my post:
https://www.amazon.co.uk/dp/B07H5LWR2Q/ ... _lig_dp_it
https://www.aliexpress.com/item/1005001 ... 1802KaIckk
Pay attention to get the board rated DC 5V-36V, MOS not relay one (no large blue component).

I hope this will help.

[ChrisRush]

Been doing quite a lot of this just recently trying to hook your system up for cannon smoke but using the CS (canshu) TK16 mainboard?

Sorry, but I don`t know even if you are still a forum member or have ever had dealings with the CS-TK16 m-board? But I`m reaching out to you, on the offchance! You seem to show the electronics knowledge I think I need!

I have converted all the HL electronics to use this, imo, excellent mainboard, from the HL 7.1 to be able to use my FlySky i6 TX/RX system. EVERTHING works perfectly, except, for the cannon smoke unit? I just can not get the req`d 6v for the fan unit from the supplied control pcb (a CS-MY30 board) The smoker/heater works fine via the pcb and the fan works fine, but only if powered separately (battery etc)

Hooking up the heater and fan unit seems straightforeward using your system, but how or from where do I pick up the trigger for the fan operation on this TK-16 mainboard?

Thanks for any help/info you can give me.

Chis R.