A7670E Cat-1/GNSS HAT is an LTE Cat-1 module that supports wireless communication modes such as LTE-TDD, LTE FDD, GSM, GPRS and EDGE, and supports up to 10Mbps downlink rate and 5Mbps uplink rate. The module supports operating systems such for Windows/Linux and multiple network protocols. The module size is the same as the SIM7000/SIM7070 series. Most AT commands are compatible with the SIM7600 series. It has strong compatibility and is suitable for telematics, monitoring equipment, POS, and industrial routers. , remote diagnosis, satellite positioning and other Internet of Things applications. Based on for 40PIN GPIO interface design, suitable for series motherboards Support network communication protocols such as TCP/IP, HTTP(s), MQTT(s), (s) and Supports dial-up Internet access, phone calls and text messaging functions Supports LBS base station positioning and can obtain approximate location information through mobile networks Support GPS, Beidou (Beidou), GLONASS positioning Supports TTS text-to-speech function, which can convert Chinese or English text into speech output Onboard USB interface can be used to test AT commands, network communications, etc. Onboard audio interface, which can be connected to headphones for recording, making phone calls and TTS voice playback, etc. Lead out the common control pins of the A7670E module for easy access to main control boards such for /ESP32 Onboard SIM card slot, supports 1.8V and 3V SIM cards There are 2 LED indicators on the board for easy viewing of module operating status. Due to different batches, the appearance, color and printed words of the product , which will not affect the use. Material: PCB colour: blue Package Contents: 1 x Expansion Board Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.