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Various simple electronics projects circuits diagrams for hobbyist and beginners . Simple circuits, mini projects with diagrams and description from many electronics categories.
This USB to Serial RS232 adapter is very useful in many situations we need to connect the a device with RS232 to a computer without RS232 port , but with USB port .
This max232 rs232 to ttl converter circuit can help you many times when you need to connect some circuits to an computer or to interconnect two devices.
This fan controller circuit diagram is build using a 741 operational amplifier, one thermistor and other few components .
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