Introducing the Adafruit Bluefruit LE Friend by Kevin Townsend published November 19, 2014, last edited March 08, 2024 posted in Adafruit Products Save New Favorite × Please sign in to include this guide in your list of favorites. You will be redirected back to this guide once you sign in, and can then save this guide as one of your favorites. Download Overview QuickStart Guide HW Setup Operating Modes Terminal Settings UART Test Factory Reset Command Mode Standard AT General Purpose Hardware Beacon BLE Generic BLE Services BLE GAP BLE GATT Debug History Command Examples Field Updates DFU on iOS DFU on Android (4.3+) BLE Sniffer GATT Service Details UART Service Software Resources Device Recovery BLE FAQ Downloads Single page Feedback? Corrections? Featured Products view all Bluefruit LE Friend - Bluetooth Low Energy (BLE 4.0) - nRF51822 $19.95 Add to Cart SEGGER J-Link BASE - JTAG/SWD Debugger $499.95 Add to Cart 10-pin 2x5 Socket-Socket 1.27mm IDC (SWD) Cable - 150mm long $2.95 Add to Cart JTAG (2x10 2.54mm) to SWD (2x5 1.27mm) Cable Adapter Board $4.95 Add to Cart 36 Beginner Project guide Downloads Files EagleCAD PCB files on GitHub Bluetooth LE module Datasheet v3.0: Uses a CP2104 USB-to-Serial converter chip, drivers available here v2.0: Uses an FT231x (FTDI) USB-to-Serial converter chip, drivers are available for all operating systems here Schematics Click to embiggen Schematic and Fab Print for CP2102N Version The part listed on the schematic reads C2104 - the footprint and pinouts are the same as the C2102N v3.0 Schematic (CP2104 Based) v2.0 Schematic (FTDI Based) Page last edited March 08, 2024 Text editor powered by tinymce. BLE FAQ