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by motionpotion
Tue Feb 03, 2015 10:23 pm
Forum: Troubleshooting
Topic: Audio Quality From Bluetooth
Replies: 2
Views: 804

Audio Quality From Bluetooth

Hi. I have followed a few different guides on how to create an FM transmitter using a Raspberry Pi. This worked fine and then I added bluetooth. I can now connect my iPhone to bluetooth on Raspberry Pi and broadcast the sound over FM to my car radio. The problem is the audio quality is terrible. Som...
by motionpotion
Tue Jan 15, 2013 8:00 pm
Forum: General discussion
Topic: Magnetic Door Unlock
Replies: 6
Views: 2347

Re: Magnetic Door Unlock

Dilligaf wrote:I would probably do a gpio switching a transistor that switches a relay to protect the PI from any voltage surge from the relay coil but I may just be paranoid or talking s***
Is there a recommended way to protect RPi from voltage surge?
by motionpotion
Mon Jan 14, 2013 11:43 pm
Forum: General discussion
Topic: Magnetic Door Unlock
Replies: 6
Views: 2347

Re: Magnetic Door Unlock

Thanks for replying cyrano. I had considered safety but I was more thinking about safety in the area of wiring this up to an already electrified circuit without frying my Pi (and myself). On the other safety aspects I guess I need to use some sort of encryption to transmit the key. On the app side I...
by motionpotion
Mon Jan 14, 2013 10:42 pm
Forum: General discussion
Topic: Magnetic Door Unlock
Replies: 6
Views: 2347

Magnetic Door Unlock

Hi. I want to start a project to allow me to unlock a magnetic door lock using a raspberry pi and iPhone/Android. I can do the app part to send a signal but I am not sure what hardware I would require to control the magnetic door lock. Currently the door is unlocked from the inside by pressing a but...

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