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Topic: RF Remote Control (Read 1 time) previous topic - next topic

CrossRoads

Jul 04, 2012, 07:37 am Last Edit: Jul 04, 2012, 07:42 am by CrossRoads Reason: 1
Got inspired to make another remote control, only 5 buttons this time (vs 12 or 16) and to go in a nice case:
http://www.polycase.com/fb-45-series
http://www.polycase.com/uploads/41361315577904.PDF page 5 is the board drawing of what fits.

So here's my version of the card, and the schematic.
Plug in a small LiPo battery,
http://www.tenergy.com/Tenergy-Lithium-Ion-Polymer-3-7V-240mAh-062025-Rechargeable-Battery
and an inexpensive RF transmitter.
http://www.robotshop.com/433mhz-high-sensitivity-transmitter-receiver-pair-rxa30.html
or maybe
http://iteadstudio.com/store/index.php?main_page=product_info&cPath=7&products_id=53

Was thinking USB microB for power from USB port to charge the battery, wil have to see how diffcult it is to pop open & access the connector.
Requested a sample case, will do some playing with cardboard mockup of the card & see how things fit.
Looks like the battery under the buttons and either RF module under the uF would - will come down to height I think.
Drawing says 0.206" is available - which is 5.2mm?
Might have to keep looking!

Hmm  - maybe go to 0.8mm thick PCB (vs 1.6mm), make it sit up off the base some & get 6mm underneath?
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

boredat20

Cool! I would go with the itead wireless module. I have one of the receiver/transmitter pairs from Sparkfun and have had pretty inconsistent results. Although the crystal might be a little big, but it shouldn't be hard to deadbug an smd crystal onto the board I suppose, or maybe you could buy just the nRF24L01 chip and layout your own board.

Interested in seeing how this goes.

CrossRoads

Okay, sample box from polycase arrived today.
Moved the micro-B connector to the side as there's no way plug in a charger cable under the keyring part (means new routing needed too).
Cut out my board, glued it on cardboard. Cut notches where the holes are since I don't have a punch that small.

Seems to me the board could be a little wider another 0.5mm all around.

Also think I need to find switches with more height to extend up into the rubber boot that goes over them.
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

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