WMDD-209 LoRa Module User Manual Version : 1.0.
Release History Release date Release version 2017/04/24 1.0.1 Main Delta 1.
1. Hardware Figure The following are the hardware picture and its pin definition.
Before using the module, you must have power supply, you can have a power supply by connecting usb like following picture. (Figure 3) After power on, the user can access the module by AT command. In WMDD-209, the user have to use UART1 to send / receive data to / from the node You can refer to the following pic and figure 2 to connect UART for using the console.
2. Configuration setting and related command ABP mode: In ABP mode, the user needs to configure 3 parameters, which are device address, network session key, application session key. The following AT commands are for end user to set the 3 parameters on WMDD-209.
AT+ECHO=1 /*show the characters user input*/ AT+CMODE=0 /*set node to OTAA mode*/ AT+CDEVEUI= /*set device address*/ AT+CAPPEUI= /*set network session key*/ AT+CAPPKEY= /*set application session key*/ AT&W /*save the configuration*/ ATZ /*reboot the node*/ If the gateway is set well too, users can follow the instruction to send packets.
Federal Communication Commission Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
This device is intended only for OEM integrators under the following conditions: 1) The antenna must be installed such that 20 cm is maintained between the antenna and users, and 2) The transmitter module may not be co-located with any other transmitter or antenna, As long as 2 conditions above are met, further transmitter test will not be required.
