Seeed 103030000 Arduino, Orangepip Grove Base Shield V2

Seeed-Arduino-Grove-Base-Shield-V2-Seeed-Studio-103030000-P-The-Arduino-Grove-Base-Shield-from-Seeed-Studio-is-switchable-between-5V-and-3-3V-making-it-compatible-with-the-official-and-a-wide-range-of-unofficial-Arduinos-This-board-is-the-hub-for-a-whole-system-of-sensors-actuators-displays-and-more-Starting-with-simple-LEDs-and-building-to-more-complicated-devices-such-as-accelerometers-Bluetooth-sound-light-temperature-sensors-the-Grove-system-seems-to-have-one-of-everything-you

Price: 4.75 from Rapid Online Rapid Electronics Ltd.