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Anyone interested from PCB for digicam's wireless RF remote.
E.T
Quote-o-matic
in Zocalo v2.0
I've been designing PCB modified for more "mobile" use as digicam's wireless remote basing to this RF remote control kit:
[url]http://www.velleman.be/ot/en/product/view/?id=352724[/url]
I stripped standard relays away and replaced them with SIL packaged reed relays (5V 500ohm) to make it smaller and more friendly for 9V battery (regulator can handle 7V - 20V)...
While transistors would have been more than enough for controlling currents "available" from digicam's wired remote port I used reed relays to make sure output remains electrically insulated from receiver.
Also rectification diodes got boot to rear so I managed to shrink size of PCB to 48x40mm which is one fourth of original. (for comparison 9V battery needs length of ~52mm)
I'm going to order these two-side (wiring on both sides) PCBs from company which also makes PCBs for hobbyers and ordering single ones later is pricier so if anyone is interested about this RF remote kit getting more of these shrinked PCBs made would be easy. (now price is 8 euros per PCB... for single one it would be ~18)
PS. Of course this needs wired remote port from camera unless you want to open your camera and make real "hard-mod".
EDIT: also knowing inners of wired remote is useful, some of those have resistors in addition to switches.
[url]http://www.velleman.be/ot/en/product/view/?id=352724[/url]
I stripped standard relays away and replaced them with SIL packaged reed relays (5V 500ohm) to make it smaller and more friendly for 9V battery (regulator can handle 7V - 20V)...
While transistors would have been more than enough for controlling currents "available" from digicam's wired remote port I used reed relays to make sure output remains electrically insulated from receiver.
Also rectification diodes got boot to rear so I managed to shrink size of PCB to 48x40mm which is one fourth of original. (for comparison 9V battery needs length of ~52mm)
I'm going to order these two-side (wiring on both sides) PCBs from company which also makes PCBs for hobbyers and ordering single ones later is pricier so if anyone is interested about this RF remote kit getting more of these shrinked PCBs made would be easy. (now price is 8 euros per PCB... for single one it would be ~18)
PS. Of course this needs wired remote port from camera unless you want to open your camera and make real "hard-mod".
EDIT: also knowing inners of wired remote is useful, some of those have resistors in addition to switches.