Just letting you guys know that I bought the MintyBoost v3, and that it charges my Motorola Droid X. I bought 3 kits, one for me, and two for my friends who own a Samsung phone, and a BlackBerry phone. I’ll let you guys know if their devices charge, if they’re not already on the compatibility list, once they get around to assembling theirs. I want to thank Adafruit Industries for providing such a great and useful kit with very easy and clear instructions. Keep making more kits so I can keep buying them. Thanks, A Very Satisfied Customer
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.
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If the device is a Samsung smartphone (such as a Galaxy S series device):
Most original GalaxyS devices will pull 475 mA when charging from a USB port. They will treat "iChargers" as a USB port, not a full-current charger.
They will pull 600 mA when D+ and D- are shorted together. This can be bumped up to 800 mA with a custom Linux kernel
Galaxy S II devices vary – the original I9100 defaults to 450/650 and kernels can customize it. The I777 has fixed 400/650 limits. Don’t know about the T-Mobile or Sprint variants.