How to use AT commands for UA sensors

The Radionode USB Sensor transmitter series has simple commands to read or set parameters. The sensor commands are very similar to the AT commands of a telephone modem. UA series devices feature USB Communications Device Class (CDC), allowing them to connect to multiple devices.
Operating systems such as Windows, Linux, MacOS and Android via USB port. The “ATCD” command alone allows users to read the digital values of the sensor. All UA series use the same commands to read sensors.

Linux.mac OS automatically recognizes it as a serial device, so there is no need to install a driver. In the case of Windows, there are versions that do not automatically recognize the port, so if the USB port is not recognized automatically, you can download and install the UA device USB driver file. You can download the UA device USB driver file by clicking the link below.

If the driver is not automatically recognized, please access the download link below and install it.

Manually download Windows UA Drive

LED operation

When you first connect to the USB port, the red LED will come on. If a normal connection is confirmed, the red LED turns off. If the connection is unstable, the red LED does not turn off and remains on. In this case, try connecting to the USB port again. (In a normal connection state, the LED will remain off and standby.)

USB console commands

Traditionally, Windows recognizes it as a COM port, and it is possible to check information about UA products using the COM port. It is possible for users to create various applications using their own commands.

*USB serial COM Port(19200 BPS, 8BIT, 1Stio, N)

AT command test method

After recognizing the driver, you can easily test AT commands using a serial terminal program such as hyper-terminal, minicom, or putty. UA products do not have an ECHO function, so the strings the user enters are not visible in the terminal window while entering commands by hand. When you enter the AT command in capital letters and press Enter, the UA product displays a response message on the screen.