chumbyhackerboard:power
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chumbyhackerboard:power [2010/09/05 01:21] ladyada |
chumbyhackerboard:power [2011/05/10 21:15] tz |
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| If your battery does not have a temperature output, you can simply solder a 10K resistor between yellow (temp wire) and black (ground). You'll probably not need a temperature sensor but in case you do, use a 10K NTC. | If your battery does not have a temperature output, you can simply solder a 10K resistor between yellow (temp wire) and black (ground). You'll probably not need a temperature sensor but in case you do, use a 10K NTC. | ||
| - | If powering from a lipoly, the chip will boost it to 5V to supply power to one of the USB ports (the top one, on the same side as the power jack) but not to the other two. | + | If powering from a lipoly, the chip will boost it to 5V to supply power to one of the USB ports (the top one, on the same side as the power jack) but not to the other two. There is a fourth USB connection on the header where I2C and other DIO pins are - this one IS also powered by the lipoly boost system. |
| The lipoly is also used for the RTC backup! Any lipoly battery, when charged, will let the RTC run for -years- | The lipoly is also used for the RTC backup! Any lipoly battery, when charged, will let the RTC run for -years- | ||
/home/ladyada/public_html/wiki/data/pages/chumbyhackerboard/power.txt · Last modified: 2016/01/28 18:05 (external edit)
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