Gsm gprs gnss bluetooth hat for raspberry pi, based on sim868overview1. 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.Features1. Raspberry pi connectivity, compatible with raspberry pi 2b 3b 3b zero zero w2. Support sms, phone call, gprs, dtmf, http, ftp, mms, email, etc.3. Support gps, compass, glonass, lbs base station positioning, omni-positioning4. Bluetooth 3.0, Supports data transferring through bluetooth5. Onboard usb to uart converter cp2102 for uart debugging6. 6X leds for indicating the module working status7. Sim card slot for 1.8V 3v sim card8. Rtc with backup battery holder9. 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 9912. Come with development resources and manual examples for raspberry pi arduino stm32 gsm gprs1. Band- gsm 850 egsm 900 dcs 1800 pcs 1900 mhz- quad-band auto search- compliant to gsm phase 2 2 2. Emitting power- class 4 2w gsm 850 egsm 900 mhz - class 1 1w dcs 1800 pcs 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...