{"title":"Gravity: Arduino Shield for Raspberry Pi B+/2B/3B/3B+/4B","handle":"arduino-shields-for-raspberry-pi-b-2b-3b","url":"/products/arduino-shields-for-raspberry-pi-b-2b-3b","description":"The Gravity Arduino Shield for Raspberry Pi brings Arduino-compatible I/O to your Raspberry Pi B+, 2B, 3B, 3B+, or 4B. Built around the ATmega32u4 (Arduino Leonardo), it sits on top of your Pi and gives you access to all standard Arduino shields and sensors alongside the Pi's own GPIO, I2C, SPI, and UART interfaces.\n\nThis combination lets you leverage the Raspberry Pi's computing power for tasks like image processing, wireless communication, and complex algorithms, while the Arduino handles real-time I/O, motor control, and fast sensor response — the best of both platforms in one stack.\n\nKey Features\n\n\nATmega32u4 Onboard – Arduino Leonardo-compatible microcontroller\n\nFull Arduino Pin Compatibility – Works with standard Arduino shields and Gravity sensors\n\n20 Digital I/O + 6 Analog I/O – Full Arduino pin mapping\n\nRaspberry Pi GPIO Access – 16 GPIO, I2C, SPI, and UART from the Pi\n\nStackable Design – Mounts directly on the Raspberry Pi's 40-pin header\n\n\nSpecifications\n\n\nMicrocontroller – ATmega32u4 (Arduino Leonardo)\n\nSystem Voltage – 5V\n\nArduino Digital I/O – 20\n\nArduino Analog I/O – 6\n\nRaspberry Pi GPIO – 16\n\nRaspberry Pi I2C – 1\n\nRaspberry Pi SPI – 1\n\nRaspberry Pi UART – 1 (TTL)\n\nDimensions – 86 × 61 × 26 mm\n\n\nCompatibility\n\nRaspberry Pi Model B+\nRaspberry Pi 2 Model B\nRaspberry Pi 3 Model B / B+\nRaspberry Pi 4 Model B\n\n\nIdeal For\n\nCombining Arduino real-time I/O with Raspberry Pi computing power\nRobotics projects requiring motor control and vision\nIoT projects using Arduino sensors with Pi networking\nPrototyping with existing Arduino shield libraries\n\n\nPackage Contents\n\n1× Arduino Expansion Shield for Raspberry Pi\n1× 20 cm Micro-USB Cable\n1× CR1220 Button Cell Battery\n\n\nResources\n\nProduct Wiki\nSchematic (PDF)\nAssembly Drawing (PDF)\n","vendor":"DFRobot","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":12095,"title":"Default Title","sku":"DF-DFR0327","price":24.49,"compare_at_price":31.83,"on_sale":true,"in_stock":true,"available_quantity":13,"option1":"Default Title"}]}