This kit is fully compatible with Raspberry Pi 4 (1GB, 2GB,4GB)
Grove Base Hat for Raspberry Pi
Grove - Red LED Button
Grove - Buzzer
Grove - Moisture Sensor
Grove - Temperature & Humidity Sensor (DHT11)
Grove - Light Sensor
Grove - mini PIR motion sensor
Grove - Ultrasonic Ranger
Grove - Relay
Grove - Servo
Grove - 16 x 2 LCD (White on Blue)