Another breadboard power supply designed by wrobot. it can directly takes power from DC wall wart and outputs a selectable 5V or 3.3V regulated voltage.

Compare to other breadboard power supply designs, this one provided  mini-USB port like the Arduino family, you can toggle the switch and select your power source. (USB or dc jack). We also used JST-2pin power jack ,the one as on Arduino family,

With this board, you can send power to both power lane of the breadboard, and each side has a on/off switch.

This breadboard power supply support mini breadboard :
 

 

This breadboard power supply also support standard breadboard :

 

 

 

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