Project 17 How to put MB102 Breadboard Power Supply Module 3.3V/5V

in normaly we use ordinary DC adaptor 5v to turn on the circuit. but I only Have DC 9V charger, so I must buy MB 102 PS Module. easy snap in protoboard. the is have usb connection for 5V to arduino. just buy the cable data for arduino.  or use printer cable.


there is jumper that kan put in mode 5Volts or 3.3 volts   set default at 5v. if any module need 3.3v add bulit internal suc as ams 1117.  beware if any mistake modul can blown up damage if directly sunddenly accidentaly connect with 5v (forget to remove the jumper voltage)

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