DX Cree XML Module
- Thread starter 350xfire
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sucnip
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Which driver? Is there a daughter card or everything on one card?
is it this driver that you are talking about? http://www.dealextreme.com/p/6-18v-3000ma-3-mode-circuit-board-for-xm-lt60-emitters-57779
if so, there is some info on modding it to single mode: http://club.dealextreme.com/forums/Forums.dx/threadid.890954
if it doesn't have a seperate board for the modes, perhaps you can just connect the LED- to the sense resistor. This worked for me on the 18W driver for MC-E LEDs (or multiple leds in series) from DX. There's a thread about that somewhere on the electronics subforum.
if so, there is some info on modding it to single mode: http://club.dealextreme.com/forums/Forums.dx/threadid.890954
if it doesn't have a seperate board for the modes, perhaps you can just connect the LED- to the sense resistor. This worked for me on the 18W driver for MC-E LEDs (or multiple leds in series) from DX. There's a thread about that somewhere on the electronics subforum.
sucnip
Newly Enlightened
@350xfire cut the trace to pin 1 on the 12f629 pic uprocessor. Jumper the cut trace to the pin used for output pwm. This will cause it to be on 100% of the time. Experiment to find the correct pin... Difficult to see without a picture.
there are some user-submitted pictures for the driver. It's using a PIC12F629 (chip with 8 pins) which is a microcontroller that will be doing the PWM. The pin closest to the 'dot' (lower left pin if you can read the text on the chip) is pin 1 and is the supply voltage of the chip. From the pictures, I see that pin 4 (lower right) and 5 (upper right) are connected to wires, but it is unclear to what they connect. I'm assuming 1 of them will be going to the LEDs?
pin 4 is a input-only pin so I doubt this will provide the PWM signal. There are other pins connected as well, but I'm not sure what they are used for since I don't know most of the components. Like sucnip said, experiment to find the right pin. I think you can even try it without cutting the trace to pin 1. just put it in a lower mode and briefly connect the pins to pin 1 (wouldn't do that with pin 4 though). If it's the right pin, it should give a high output.
pin 4 is a input-only pin so I doubt this will provide the PWM signal. There are other pins connected as well, but I'm not sure what they are used for since I don't know most of the components. Like sucnip said, experiment to find the right pin. I think you can even try it without cutting the trace to pin 1. just put it in a lower mode and briefly connect the pins to pin 1 (wouldn't do that with pin 4 though). If it's the right pin, it should give a high output.
sucnip
Newly Enlightened
The pins are numbered counterclockwise starting with the dot- pin 1. This is Vdd or supply voltage. Pin 8, opposite pin 1, is Vss or ground. Do not short pin 1 to 8. May fry the board or your battery.
hi folks, I have tried it with a pic 12E675 and it works connecting pin 1 to pin 5. without cutting anything. i get max output all the time
cheers
DS
