A darlington transistor can be used as a solid state switch controlled by a low current PICAXE output and able to switch a higher current load that a PICAXE output could not handle directly.
The BCX38C darlington transistor create module can control many diffrent devices, such as the buzzer shown here.
Bill of Materials
|BCX38C Darlington driver transistor ||TRT002 ||1 ||Buy Now |
|1N4001 Diode ||RES041 ||1 ||Buy Now |
|1k resistor (pack 100) ||RES1K ||1 ||Buy Now |
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