espruino-ble-uart (npm): This is an Espruino Web Tool that implements the Nordic UART Service (NUS) by Nordic Semiconductors for BLE use. This allows BLE devices to communicate using UART via Bluetooth Low Energy. 
Keywords: BLE|UART|Espruino|NUS|nrfuart|Nordic Semiconductor|Bluetooth 4.0|Bluetooth 5.0|Bluetooth Smart|Bluetooth Low Energy