add slave nanjg to original small sun t08 driver

hi, i've small sun t08 and work fine but original driver put only 1.6A in high mode, so ,i'd like to add more juice. i've nanjg 1000ma 1 mode, so i think is perfect for slave to the original master driver, but.. how can wire togheter? i read some other post about master slave between two nanjg driver, but with this one? thanks in advance

Hi and welcome to BLF.

I have a ZY-T08 but it’s original driver was thrown away a long time ago, I replaced it with one of my own.

I’m not good enough with electronics to be able to see exactly how the driver on your photo works, but if high mode puts out a “enable/on signal” from one of the pins on the MCU, then you need to solder a wire between it and the “enable/on signal” on the Nanjg driver. I’m assuming it’s only highest mode you want to activate the slave on. Is that right?

Where the “enable/on signal” is on the Nanjg driver is fairly easy to spot. Post a photo of it if you don’t know and we can point it out for you. After that it’s just a matter of connecting LED- and Ground between original driver and slave.

The hard part is identifying which pin on the original driver is active on highest mode. If it’s not just active/high on a pin, then I’d go for a full driver replacement and use the original as a battery contact plate only. There’s no space issue as there is a lot of space inside the ZY-T08 pill.

same question…which pin is active on highest mode? i don’t know.

what’s the solder point called B+ and L+ on the original board ? with multimeter test both brings same voltage as battery , maybe can i use it for solder “+” wire to another driver bypassing original mcu.

i think that’s better use original driver as contact plate and replace with decent driver without dance strobe mode

I believe that the 4 resistors on the right of the board are for current sensing.

If you want more current, then you can add some more low value resistors in parallel with them.
I remember seeing a couple of threads for resistor modding the stock driver. A Google search should help you out.

If you go that route, make sure to bypass the springs with silicone wire.

Can you check with your multimeter if any pin on your driver is active only on high mode? If so, problem solved and it’s just a matter of soldering a wire to it.

B+ (battery) and L (LED) are probably the same. I say “probably” as this is how almost all of “our” drivers work. For a replacement driver B would be used as + on new driver and LED+.

If you are annoyed with the disco modes, then go for a driver replacement. It’s probably easier.

yess,
the fastest way is to use orginal driver s contact plate,
so i solder b+ to center + of nanjg 2800ma , external contact “-” to external contact “-” and then power the led through nanjg driver.
spring bypass done with awg20 silicon wire some years ago after original switch button fried.