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Battery operation

It is important to note that when the Touch Board is only connected to a battery the maximum distance for proximity sensing will diminish. This is because there is no hard connection to an earth reference. You can fix this by connecting one of the ground pins or the ground electrode to an earth point. This will bring the range back up to full. That said you can still accurately register touches and proximity when it is battery powered, completely untethered your laptop or USB power supply. Check out our FAQ on powering the Touch Board with batteries to make sure you order the correct specification LiPo cell.

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