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- Support GPRS and wifi two main technology, seamless switch in these two.
- Based on ESP8266 (or 8285) wifi IC.
- Serial UART communication from MCU to A20, or camera data from A2; A20 data transmission via GPRS or wifi to user.
- GPRS and Wifi can power alone, and work alone.
- Support four working mode, GPRS mode, wifi mode, both mode, wifi control GPRS and camera mode. use esp8266/8285 secondary uart port, this need develop your own program.
- Semi-hole technology, through the standard SMT equipment to achieve the rapid production module for customers with high reliability of the connection, especially for automation, large-scale, low-cost modern production methods.
- Outdoor monitoring, agricultural monitoring, industrial monitoring, intelligent home appliances, driving test system, Fingerprint Face Camera Punching machine, video doorbell camera camera lights in many fields.
- Can get pictures at the same time, through WiFi or GPRS seamless switch transmission, become the biggest bright spot of its application.
- WiFi + GPRS Combo;
- Size 22.80 × 19.80mm;
- Operating temperature -30 ℃ to + 80 ℃;
- Operating voltage 3.3V-4.2V;
- Boot voltage> 3.4V;
- Power supply: DC 5V 1A;
- Support GSM / GPRS four frequency bands, including 850, 900, 1800, 1900MHz;
- Support global GSM network;
- Support serial port and network communication;
- Support SMS messages;
- Support camera, picture compression format: JPEG standard;
- Image resolution: VGA (640 * 480), QBGA (320 * 40), QQBGA (160 * 120), can be set through the serial port instruction;
- Support for transmission of pictures, the maximum speed of 16KB / S;
- Support for external 300,000 pixel camera;
- GPRS Class 10;
- Sensitivity <-105;
- Built-in ESP8285/8266 WiFi chip, support WiFi chip secondary development;
- Support GPRS data services, the maximum data rate, download 85.6Kbps, upload 42.8Kbps;
- Support for digital audio and analog audio, support HR, FR, EFR, AMR voice coding;
- Support ROHS, FCC, CE, CTA certification;