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Amazon.com: RPi 3.3V to 5V 26 I/O Bidirectional Voltage-Level Shifter Module for Raspberry Pi, Logic Level Converter : Electronics
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1 Piece Ic Chip Mcp3008-i/p Mcp3008 8-channel 10-bit A/d Converters Spi Dip16 Original Integrated Circuit For Respberry Pi - Integrated Circuits - AliExpress
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