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The Shift Register Output Expander board is an easy way to increase the number of outputs of a microcontroller, including LED outputs. Current limiting resistor is required. The current per output should not exceed 20mA.
The expander board is based on the 74HC595D Serial-In – Parallel-Out (SIPO) shift register, has a total of 4 chips per board, giving 32 outputs per board. The common terminal for all outputs is GND and if used for LED application, the type of configuration is common cathode.
The Shift Register is compatible with Mobiflight.
Find more information in the product datasheet.