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Matt Halpen
Works at Google
Attends Queen Elizabeth High School
Lives in Taco
73 followers|194,427 views
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Matt Halpen

Requests  - 
 
8-2 When is that health article on Nelson Mandela due? I haven't started yet so....... Halo probably doesn't help me get stuff done....
2
Hanan Anam's profile photoTahmid Khan's profile photo
11 comments
 
im still asking 
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Matt Halpen

Maker Camp Projects  - 
 
My Wind-Triggered Lantern! Bit late, I know, but trying to catch up on a few projects. Instead of putting the LED on the outside, I put it inside for weather-proofing and it makes it seem a lot brighter. #makercamp  
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Erik Katz's profile photoIbby Ghirann's profile photoLaura Cochrane's profile photoStett Holbrook's profile photo
4 comments
 
Late is great. Thanks for posting.
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Matt Halpen

Discussion  - 
 
I have built the bicycle powered phone charger, and thoroughly tested all connections and voltage coming out at the end of the circuit (about 2.5 volts). My phone does not register as charging though, so my final thought was that it is probably charging, but it does not register on the device because the voltage is too low. What is the voltage required to have a phone such as the HTC Desire C register that it is charging?
1
Matt Halpen's profile photoJesse Robinson (Colecago)'s profile photo
8 comments
 
It's probably not charging at all, voltage not high enough.
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