R1200RS + R1250RS Forum
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Sat Jun 06, 2020 4:48 pm
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can you buy a USB lead to plug into the Cansmart for phone charging...or should I just use the bmw socket? |
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I would guess that the CanSmart’s USB port is for data and not charging.
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USB is a universal protocol as the name suggests. Every USB socket, by definition, must supply a 5V power source to power devices such as memory sticks that do not have their own power. The original USB 1 protocol was for a max of 100mA, USB 3 is for 150mA as this is all that should be needed for data transfer. A typical USB phone charger is 1000mA and many are 2000mAm with a few rated even higher. |
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It looks to me that the CANsmart device is a USB peripheral, the previous information about the various current capacities of USB versions is generally correct, but unless it’s USB-C, power only flows in one direction on a USB connection, and that’s from the host to the peripheral. So, you can’t charge from it. Generally USB lead configurations(different connections each end) prevent connecting hosts to hosts and peripheral to peripheral, so you probably wouldn’t be able to get a lead anyway. |
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Zitat von Nickmiles24 im Beitrag #6 It's not strictly a USB peripheral. It plugs into the CANbus system but has a USB interface for programming and configuration I believe (if it's anything like my HexEZCan). I use a 12V to dual USB waterproof unit wired into the "spare" output of my HexEZCan. Cheap as chips from Amazon, and no current draw with the bike off, as the HexEZCan controls the power to it. Cheers Paul B. |
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