Data Sheet

Parts List
The minimum parts required to make a working xBridge circuit are:
1x Pololu Wixel
1x Adafruit Micro Lipo Charger with Micro USB Jack (PRODUCT ID: 1904) or equivalent.
1x 10k 1% 1/2W metal film resistor.
1x 27k 1% 1/2W metal film resistor
1x HM-1X (HM-10 or HM-11) based BLE module.
1x 3.7V Lithium Polymer (LiPo) battery. The capacity is your choice, but recommend
1200mAh for 5 days or more continuous operation. This should come with a JST connecter
already fitted, which plugs into the JST socket on the charger board.
As a guideline to how long you can expect a particular battery to last, use the formula below.
Note this is theoretical only, do not expect this full figure to be achieved. This
formula is for comparison of battery capacities only, and only applies to xBridge2
circuit and wixel firmware.
Days Life = (Battery Capacity mAh/5)/24
So for a 1200mAh battery, Days Life = (1200/7)/24 = 7.14
Optionally you can include:
20mm Reverse/Forward Micro USB Qi Universal receiver Module (Adafruit Product IDs
2114, or 2116. This plugs into the charger board micro USB jack.
Switch in the Battery Positive lead to turn OFF the bridge.
JST Plug with wire, and Socket. Solder the socket to GND and VIN (Make sure the polarity
is correct, Red battery wire goes to VIN, Black goes to GND), and solder the JST Plug and
Wire to the output pins of the charger board. You can then easily disconnect the wixel from
the battery and charger board when not using the bridge.
Circuit diagrams
Bare HM-10 connected to Wixel and Adafruit charger board.