nRF52832 chipst ID card tag ble beacon with accelerometer and RFID
The BLE Beacon Card C7 with ON/OFF button is designed based on the Low Energy Bluetooth 4.0 technology. The shape of Beacon Card C7 looks a bank card but it is waterproof and it has packed a Lithium polymer battery. Firmware iBeacon and Eddystone Optional. Option sensor NFC/RFID as well.