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wiki:v2:powering_pixy [2018/05/24 22:14]
pixycam [I/O connector]
wiki:v2:powering_pixy [2018/05/24 22:39] (current)
pixycam [I/O connector]
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-==== Power connector ​====+==== Unregulated power ====
-The power connector ​is marked "​JP1"​ on Pixy's PCB. Although we totally expect that 90% of Pixy users to use the first two choices (above), we've included a third choice -- an unregulated power input. ​Because we love it when we feel taken care of, and we've taken care of you, unregulated Pixy power person.+The I/O connector ​has an unregulated power input (Vin, pin 10) You can provide between 6V and 10V to this input and Pixy2's linear regulator will create the 5V power rail 
-It is recommended that you use this option if you plan on using the pan/tilt unit with Pixy and an Arduino (and no USB cable). In this case, **Pixy is sourcing the power** and powering the Arduino through the Arduino cable, and **that'​s perfectly fine**, because Pixy can source up to 1.5A of current, which is plenty for itself, the servos and the Arduino. If you attempt to have the **Arduino source the power** and power Pixy and the pan/tilt through the Arduino cable, either the Arduino'​s power regulator will be overwhelmed,​ or you'll lose a lot of power through the cable, both of which will mean **the servos won't function** (they'​ll probably move to one end of their limits and buzz). 
-OK, here are the pinouts and polarity of the power connector:+Powering Pixy through Vin (pin 10) can result in more current being available for the RC-servos to use with the pan-tilt unit.  Connecting Pixy2 to an Arduino when Pixy2 is being powered through Vin results in **Pixy2 sourcing ​the power for the Arduino**. ​ This is sometimes preferable to the Arduino sourcing power to Pixy2 because the voltage regulator on some Arduinos cannot handle the current requirements of Pixy and the pan-tilt unit (two RC-servos.)  ​
-The power connector is reverse-polarity protected, so nothing bad will happen if you get things backwards. The mating connector is a polarized connector from Molex that comes in two parts: +Some additional notes:
-  - **The housing**, Molex PN 22-01-3027, available from [[http://​www.digikey.com/​product-search/​en?​x=0&​y=0&​KeyWords=22-01-3027|Digikey]] and [[http://​www.mouser.com/​ProductDetail/​Molex/​22-01-3027/?​qs=%2fha2pyFadujVoN8fcIRqZsMlWF6dgIQRsLjTxOPvJ04%3d|Mouser]] +
-  - **The crimp pins**, Molex PN 08-50-0113, you'll need at least 2 of them, also available from [[http://​www.digikey.com/​product-detail/​en/​0008500113/​WM1114CT-ND/​467980|Digikey]] and [[http://​www.mouser.com/​ProductDetail/​Molex/​08-50-0113/?​qs=sGAEpiMZZMs%252bGHln7q6pm%252bS0pk2Wo0Xxry%2f2CCsvuc0%3d|Mouser]]+
-It is safe to connect ​Pixy to a computer via USB while powered ​using this method.+  * Vin (pin 10) of the I/O connector is reverse-polarity protected, so nothing bad will happen if you get things backwards. 
 +  * It is safe to connect ​Pixy2 to a computer via USB while Pixy2 is powered ​through Vin.
wiki/v2/powering_pixy.1527200054.txt.gz · Last modified: 2018/05/24 22:14 by pixycam