72 Channels Serial To Parallel Driver Board Using 74HC595 & ULN2803
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72 Channels Serial To Parallel Driver Board Using 74HC595 & ULN2803

72 channels Serial (SPI) to parallel driver board has been designed for various applications. This project can be used as multi Solenoid driver, large size 7 segment display driver, bar graph driver, and LED driver. The project works with 5V logic levels. Output load supply 12V-48V DC...

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Open Badge: The LED Badge
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Open Badge: The LED Badge

Rohit Gupta published a new build, the OpenBadge The major elements on the PCB were: – LED Matrix – A MSP430G2553 microcontroller brain – A ULN2803 Darlington Driver to sink the current – A USB connector to charge the battery – A SBW connector to program the...

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