Hello everyone.
I had to change the battery in my bicycle computer/speedo, so now I've lost the total milage recorded. I'd like to "spin" it back up to the milage I had, so I need a transistor switch which will produce open and short circuits at the output, controlled by a R/C timer to trigger the transistor on and off.
The speedo is triggered using a reed switch fixed to the fork with a magnet on the wheel which spins past the reed switch.
Anyone know of a suitable circuit which i could use? I've got some BC109's left which I can put into service.
Thanks a lot
Garry
I had to change the battery in my bicycle computer/speedo, so now I've lost the total milage recorded. I'd like to "spin" it back up to the milage I had, so I need a transistor switch which will produce open and short circuits at the output, controlled by a R/C timer to trigger the transistor on and off.
The speedo is triggered using a reed switch fixed to the fork with a magnet on the wheel which spins past the reed switch.
Anyone know of a suitable circuit which i could use? I've got some BC109's left which I can put into service.
Thanks a lot
Garry