Thanks to Daniel for sending in his great project! Via Instructables.
In this Instructable we are going to make a solar wireless headphones that use bone conduction speakers to play music. This headphones are capable of control the multimedia player basic functions and also have a built in microphone to allow take calls.
The solar panel will provide an extra power boost, is not too much but is enough to give 15 extra minutes of music and recharge the battery while the headphones are off. The lipo battery itself can power the headphones for around 50 minutes. And also you can provide external power via de mini usb connector, when you do this you can continue using the headphones while the battery is recharging. The battery status indicator only will be on while the battery is recharging over USB, in solar recharge mode the led remains off all the time to save energy. The bone conduction allow to listen your music while you still hearing your surroundings, so this headphones are nice when you are outside and you want to continue paying attention to the external world.
This is a work in progress so there is a lot of improvements that can be done!
Lets get started, shall we?
Featured Adafruit Product!
Bone Conductor Transducer with Wires – 8 Ohm 1 Watt: Drown out the voices in your head with a bone conduction transducer! This incredible speaker does not have a moving cone like most speakers you’ve seen, instead, a small metal rod is wrapped with the voice coil. When current is pulsed through the coil, the magnetic field causes a piece of metal to expand and contract – if pressed against a flat surface or cavity it turns it into a speaker! Read more.
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