Waveshare GSMGPRSGNSSBluetooth HAT for Raspberry Pi GSMGPRSGNSSBluetooth HAT for Raspberry Pi, Based on SIM868 Overview 1. This is a handy, low power Raspberry Pi HAT which features multi communication functionalities: GSM, GPRS, GNSS and Bluetooth. 2. It allows your Pi to easily make a telephone call, send messages, connect to wireless Internet, global position, transfer data via Bluetooth, and so on. Features 1. Raspberry Pi connectivity, compatible with Raspberry Pi 2B3B3B+ZeroZero W 2. Support SMS, phone call, GPRS, DTMF, HTTP, FTP, MMS, email, etc. 3. Support GPS, COMPASS, Glonass, LBS base station positioning, omni-positioning 4. Bluetooth 3.0, supports data transferring through Bluetooth 5. Onboard USB TO UART converter CP2102 for UART debugging 6. 6x LEDs for indicating the module working status 7. SIM card slot for 1.8V3V SIM card 8. RTC with backup battery holder 9. Baudrate auto detection (1200bps ~115200bps) 10. Control via AT commands (3GPP TS 27.007, 27.005, and SIMCOM enhanced AT Commands) 11. Support SIM application toolkit: GSM 11.14 Release 99 12. Come with development resources and manual (examples for Raspberry PiArduinoSTM32) GSMGPRS 1. Band - GSM 850EGSM 900DCS 1800PCS 1900 MHz - Quad-band auto search - Compliant to GSM phase 22+ 2. Emitting power - Class 4 (2W @ GSM 850EGSM 900 MHz) - Class 1 (1W @ DCS 1800PCS 1900 MHz) 4. GPRS connectivity - GPRS multi-slot class 12 (default) - GPRS multi-slot class 1~12 (configurable) 5. GPRS data feature - Downlink speed: max 85.6kbps - Uplink speed: max 85.6kbps - Coding schemes: CS-1\CS-2\CS-3\CS-4 - Support PAP (Password Authentication Protocol) for PPP connection - Support PBCCH - Support USSD 6. SMS - Support: MTMOCBTextPDU mode - SMS storage: SIM card 7. Audio - Voice encodedecode mode: Half Rate\Full Rate\Enhanced Full Rate\Adaptive muti rate - Support echo cancellation - Support noise reducti