[Working voltage]：DC 4.5~18V

[Data interface]：TTL level

[Product size]：25*25mm

[Product weight]：4.3±0.2g

[Introduction]：E840-TTL (EC05-DNE) is a small-sized 4G TTL pin module developed by Ebyte using 4G CAT1 technology for use in the Asia-Pacific region, Australia, New Zealand and other regions. It has the characteristics of small size, high speed, low delay and convenient use. Simple features, simple configuration can realize serial device networking function (two-way transparent transmission between serial device and network server). The 4G pin module adopts 2.0mm pin header, which is easy to debug. Simple configuration can realize the serial port networking process, which is very convenient to integrate into the Internet of Things project. The 4G module supports two links, supports the MQTT protocol, and supports access to the Alibaba Cloud Platform, OneNet Platform, Baidu Cloud Platform, and Huawei Cloud Platform, making it easy to implement IoT applications.