Atom DTU NBIoT is a programmable data transmission unit (DTU) integrated with NB-IoT communication functionality. It features a built-in SIM7020G module, covering most Cat-NB frequency bands, and includes an SMA external antenna interface to enhance communication quality and signal stability. Unlike conventional DTUs that only support data passthrough, the Atom DTU NBIoT series adopts a more open architecture design. The Atom-Lite controller allows users to modify the program according to actual business needs. The device is equipped with multiple interfaces (RS485, I2C, custom interfaces) for user expansion, facilitating quick integration of sensors and actuators. It also comes with a rail mounting structure, making it easy to embed into various industrial control environments. Atom DTU NBIoT is ideal for applications requiring low latency and low throughput, such as remote control, asset tracking, remote monitoring, telemedicine, and shared bikes.
Features
SIM7020G/Global version/Multi-band support
RS485 communication interface (with 12V input, internally integrated DCDC step-down to 5V)
Connect to an MQTT server, subscribe and publish messages. When a new subscription message is received, the callback function is called, passing the topic name and data content. The output will be printed to the USB serial port.
