Arduino-Primo-Core-Nordic-n RF52-NFC-BLE-Motion-Environmental-Sensors-Arduino-A000138-The-b-Arduino-Primo-Core-b-is-a-low-power-version-of-the-b-Primo-b-that-can-run-on-the-power-of-a-coin-cell-&-is-ideal-for-use-as-a-wearable-device-as-well-as-being-able-to-be-mounted-on-a-breakout-board-br-br-The-Primo-Core-uses-the-b-Nordic-n RF52-b-which-has-Bluetooth-Smart-BLE-4-0-&-NFC-A-tag-functions-The-board-also-features-integrated-sensors-for-humidity-&-temperature-a