iHaospace TXS0108E 8 Kanal-Logikpegelwandler 3,3 V 5 V bidirektionaler High- Speed-Shifter Level Shifter 3.3v 5v für Arduino Raspberry Pi IIC I2C SPI: Amazon.de: Computer & Zubehör
I2C Bus/Interface in Raspberry Pi
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Real Time Clock RTC DS3231 I2C Echtzeituhr kompatibel mit Arduino und – AZ-Delivery
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Amazon.com: Raspberry Pi PWM Fan HAT for Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero/W/WH,I2C Bus PCA9685 PWM Driver 8000rpm Speed 0.91" OLED 128x32,Retrieve Temperature Data in Real Time Adjust Speed Automatically : Electronics
Benchmarking Raspberry Pi GPIO Speed | Code and Life
Did You Know That The Raspberry Pi 4 Has More SPI, I2C, UART Ports? | Hackaday