Amazon.com: CQRobot Ocean: MCP23017 IO Expansion Board Compatible with Raspberry Pi/Micro:bit/Arduino/STM32 Motherboard. I2C Interface, Expands 16 I/O Pins, Up to 8 Expansion Boards Can be Used Simultaneously. : Electronics
SparkFun Qwiic HAT for Raspberry Pi -Connect I2C sensors & accessories to a standard 2x20 GPIO header Pi Tin compatible 4 Qwiic connectors Daisy chain sensors & accessories Useful GPIO pins broken
![Amazon.com: Adafruit Blue&White 16x2 LCD+Keypad Kit for Raspberry Pi [ADA1115] : Electronics](https://m.media-amazon.com/images/I/51tafiIJDpL._AC_UF894,1000_QL80_.jpg "Amazon.com: Adafruit Blue&White 16x2 LCD+Keypad Kit for Raspberry Pi [ADA1115] : Electronics")
Amazon.com: Adafruit Blue&White 16x2 LCD+Keypad Kit for Raspberry Pi [ADA1115] : Electronics
Amazon.com: waveshare 4-ch Current/Voltage/Power Monitor HAT for Raspberry Pi with I2C/SMBus Interface : Electronics
Amazon.com: Serial Expansion HAT for Raspberry pi Onboard SC16IS752 2 Channels(2-ch) UART 8 GPIOs I2C Interface Stackable to 16 Modules to 32-ch UART : Electronics
Amazon.com: 4-CH Current/Voltage/Power Monitor HAT for Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero/W, I2C/SMBus Interface Onboard 0.1Ω 1％ Sampling Resistor Measure Bi-Directional Current up to 3.2A Embed 12-bit ADC : Electronics
Amazon.com: 2327 - Raspberry Pi PWM Servo Hat Development Board : Electronics
Amazon.com: Raspberry Pi Zero W - WiFi/Bluetooth 4.1, Bluetooth Low Energy, HAT Compatible 40-pin Header, CSI Camera Connector, USRT, SPI, I2C
Amazon.com: waveshare 4-ch Current/Voltage/Power Monitor HAT for Raspberry Pi with I2C/SMBus Interface : Electronics
Amazon.com: 4-Channel Current/Voltage/Power Monitor HAT Via I2C / SMBus Interface Embedded 12-bit ADC for Raspberry Pi / STM32 @XYGStudy : Electronics
Amazon.com: XICOOLEE MCP23017 I/O Expansion Board Module SG-IO-E017, 16 I/O Pins Supports for Raspberry Pi Series, Onboard 3-Digit DIP Switch, I2C Interface Compatible with 3.3V/5V Working Level : Electronics
Amazon.com: Treedix 2pcs 2x20 GPIO Header Connection Ports PI Hat GPIO Breakout Board GPIO Connector Compatible with Raspberry pi for JST 1mm 4 Channel Easily Read Multiple Sensors with The Same I2C
Amazon.com: Power Over Ethernet HAT (B) for Raspberry Pi 3 Model B+ / Raspberry Pi 4 Model B, PoE HAT Board with 0.91" OLED and Cooling Fan, Support 802.3af PoE Network Power-Sourcing
Amazon.com: AW9523B IO Expansion Board for Raspberry Pi/Micro:bit/Ardu/STM32, I2C Interface, Expands 16 I/O Pins Allows Using 4 Expansion Boards at The Same Time, Expanding up to 64 I/O Ports : Electronics
Amazon.com: XICOOLEE MCP23017 I/O Expansion Board Module SG-IO-E017, 16 I/O Pins Supports for Raspberry Pi Series, Onboard 3-Digit DIP Switch, I2C Interface Compatible with 3.3V/5V Working Level : Electronics
Amazon.com: DVOZVO Raspberry Pi Pico W with Pre-Soldered Pin Headers, Raspberry Pi RP2040 Chip, Wi-Fi Wireless Connectivity,Pico WH with USB Cable : Electronics
Amazon.com: MakerFocus 4pcs OLED Display Module I2C IIC 128X64 0.96 Inch Display Module SSD1315 Yellow Blue Two-Color Display with Pins for Ar duino UNO R3 STM Raspberry Pi 4B/ 3B+/ 3B/ 2B/
Amazon.com: DORHEA 6PCS 0.96'' OLED Display Module 12864 128x64 Pixel LCD White Light SSD1306 Driver Board I2C Serial 0.96 inch IIC Chip 4 Pin Self-Luminous Display Board Compatible with Raspberry Pi : Electronics
Amazon.com: Coolwell Waveshare MCP23017 IO Expansion Board I2C Interface Expands 16 I/O Pins Stack to 8 pcs for Raspberry Pi Raspberry Pi 4B+ 4B 3B+ 3B 2B+ Zero W WH 2 W
Amazon.com: Raspberry Pi Zero WH, WiFi/Bluetooth 4.1, Bluetooth Low Energy, HAT Compatible 40-pin Header, CSI Camera Connector, USRT, SPI, I2C, with headers : Electronics
Amazon.com: Raspberry Pi Zero W - WiFi/Bluetooth 4.1, Bluetooth Low Energy, HAT Compatible 40-pin Header, CSI Camera Connector, USRT, SPI, I2C
