The A7670E Cat-1/GNSS HAT is an LTE Cat-1 module, which supports wireless communication modes including LTE-TDD, LTE-FDD, GSM, GPRS and EDGE, with up to 10Mbps downlink rate and 5Mbps uplink rate. It supports Windows/Linux operating systems and multiple network protocols. The module size is the same as SIM7000/SIM7070 series, and the AT commands are mostly compatible with SIM7600 series. It is suitable for IoT applications like remote information processing, monitoring devices, POS, industrial routers, remote diagnosis, satellite positioning, and so on. 

• Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards
• Supports protocols including TCP/IP, HTTP(s), MQTT(s), FTP(s), and SSL
• Supports dial-up, telephone call, SMS
• Supports LBS base station positioning, it is able to get the approximate position info via mobile network 
• Supports GPS, BeiDou, GLONASS positioning
• TTS (Text To Speech) feature, texts in Chinese/English can be converted into spoken words
• Onboard USB interface, for testing AT Commands, network communication, and so on
• Onboard audio jack for sound recording, making telephone calls, listening the TTS resulting speech, etc.
• Breakout common used control pins of the A7670E module, make it easy to connect with hosts boards like Arduino/STM32
• SIM card slot, supports 1.8V/3V SIM card
• 2x LED indicators, easy to monitor the operating status
• Comes with development resources and manual (examples for Raspberry Pi/Jetson Nano/Arduino/STM32)