Photon Freedom controlling a Q III?

I would like to have a Photon Freedom (P.F) drive the Q III. By placing the P.F. circuit board in the tail or head of the Q III, and changing the switch to a momentary type. Will the P.F. circuit provide enough umph to run the Q III circuit?

Unfortunately, the chip inside the Freedom won't have anywhere near the current drive for the QIII. It's just a tiny 8 pin microprocessor. Five of the pins are connected together to supply about 60mA to the small LED. The QIII would require hundreds of mA.

Perhaps, an external transistor could be added to handle the extra current.

I'm not sure if microprocessor in the Freedom would run on the less than 3V under load from the QIII's single CR123. It normally gets more than 5V from the Photon's two CR2016s.

A red photon runs on one 3v Coin cell. So I think the microprocessor would still run using a 123.

I say try it. Its the only way to know for sure and you may just stumble upon one GREAT mod! The chip is a little too big for the tail. You may have to trim it or put it in the head.

It is possible with an external mosfet.