Nanjg 105c always on

YuvalS · 2019-08-01T00:38:13.000Z

Hi all,
I am building an Headlamp and having an issue with the Nanjg 105c driver.
After flashing the FW and connecting the battery the LED is always on even for very simple OCR0B = 0; OCR0A = 0; FW.

The same FW and driver worked great before but I did some soldering and may destroy something.

Any idea what could go wrong?

Thanks
Yuval

YuvalS · 2019-08-01T07:43:28.000Z

My guess is that one 7135 is malfunction and always on.
1. Is it possible?
2. Is there a simple way to check all 7135s on board without soldering it out 1 by 1

Henk4U2 · 2019-08-01T08:11:14.000Z

Hi Yuval, maybe I am mis-understanding you completely. If so, I apologize.
But there is no switch on the driver board. That is in the tail, or elsewhere in the light.

If you connect the battery, some current will flow. Question is: how much.
Is the light always 100% on? Can you regulate the current by clicking?

YuvalS · 2019-08-01T08:34:48.000Z

Henk4U2:

Hi Yuval, maybe I am mis-understanding you completely. If so, I apologize. But there is no switch on the driver board. That is in the tail, or elsewhere in the light. If you connect the battery, some current will flow. Question is: how much. Is the light always 100% on? Can you regulate the current by clicking?

I am connecting momentary switch to pin 2 on pull down mode but it has no affect.

I try to flash a very simple blink FW and also always off FW but no mater what, the LED is always on when I connect a battery.
I don't know if it is 100% or less