<div class="detailmodule_html"><div class="detail-desc-decorate-richtext"><p>Features:<br />1.LoRa technology long-distance wireless transmission (3500 meters in the open field/under S1 wireless rate), supports one-to-one, one-to-many, and many-to-many connections through the transmission.<br />2.Operating frequency range (415.09-449.86MHz, 50 communication channels), maximum 130mW (22dBm) transmit power (8 power levels can be set).<br />3. Built-in MCU, communicate with external devices through serial port, support 1200~115200 serial port baud rate.<br />4. Self-contained firmware, no need to pay attention to the serial protocol, power-on automatic link, 433MHZ/serial communication/UART/TTL level.<br />5. Wide range of applications: can be used for wireless sensors, robot wireless control, industrial remote control, automation data acquisition, POS system, vehicle keyless entry system and other fields.</p> <p>Parameter:<br />Operating Frequency Band: 415.09~449.86MHz<br />Supply Voltage: DC 3.0~3.6V<br />Operating current: (receive) 9mA; (transmit) 125mA<br />Chip: STM32WLE5<br />Transmit power: 130MW (22dBm)<br />Communication distance: 3500m/wireless rate s1<br />Communication interface: UART 3.3V TTL level interface<br />Serial baud rate: 1200~115200bps<br />Wireless rate: 8 kinds S1~S8<br />Antenna form: IPEX/spring antenna<br />Operating Temperature: -25~75&deg;C<br />Operating Humidity: 10~90%<br />Storage Temperature：-40~85℃<br />Product Size: 27.4*15.6*4mm<br />Note: 2 modules to network</p> <p>HC-15 wireless serial communication module is a new generation of LORA wireless digital transmission module. The wireless working frequency band is 433MHz, and up to 50 communication channels can be set. The maximum transmitting power of the module is 130mW (22dBm), and it adopts advanced LoRa technology, the receiving sensitivity is as high as -140dBm under the condition of wireless rate S1, and the communication distance is 3500 meters in the open field.<br />The module adopts stamp hole package, can be patch welding, module size 27.4mm &times; 15.6mm &times; 4mm (including antenna cap, excluding spring antenna), it is very convenient for customers to embedded in the application system. There is a PCB antenna holder ANT1 on the module, users can use the coaxial cable, using the 433MHz band external antenna; module also has an antenna welding hole ANT2, convenient for users to weld the spring antenna. Users can choose one of the antennas according to their requirements (only one of the antennas can be chosen, two antennas cannot be connected at the same time).<br />The module contains LORA SOC, users do not need to program the module separately, all kinds of transmission modes just send and receive serial data, easy to use.</p> <p><br />Package include:<br />Module*1<br />Antenna*1<br /></p></div></div>