WL-DCM2400 User Manual Wavelabs, Inc.,: RM705, 7FL, Jangmiro 42, Bundang-gu Sungnam-City, Gyeonggi-do, Rep of KOREA Tel: +82.31.8017.7628 Fax: +82.31.8017.7629 -1- © 2020 Wavelabs, Inc.
1. Overview WL-DCM2400 provides safe RF wireless communication with Point-to-Point Topology. WL-DCM2400 is an RF wireless communication module operating in the 2.4GHz ISM Band Frequency Hopping method and can apply to equipment using serial interface, and long distance communication is possible at high speed. WL-DCM2400 can be configured according to the required type by AT command. Applications are conveniently configured and can be applied in various fields. 1.
RF Radiation Exposure Statement: This equipment complies with RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. This device complies with Industry Canada license-exempt RSS standard(s).
1.2 Characteristics and functions The main performance features of WL-DCM2400 are as follows. 2.4MHz ISM Band Frequency Hopping Operation(Max. 79ch) Maximum output power of 1W (+30dBm) ※ Output power level can be adjusted according to the standards of each country 1.3 Link rate : Max. 250kbps Can be set by AT command UART / USB interface Call book function RSSI LED indication WL-DCM2400 specification Electrical / General Supported Frequency: Spreading Method: 2.405 ~ 2.
2. Hardware Description This document defines the standard and general characteristics applied to the WL-DCM2400 module. WL-DCM2400 composes several interfaces as follows. Input DC voltage : +7 ~ +12 VDC Power LED indication: Red RSSI LED indication: Blue TX Data LED indication: Red RX Data LED indication: Green RS232 / UART Data Interface Antenna (SMA) USB Port (Serial to USB (Micro 5Pin)) I/O Pins (JST Connector 6Pin (VCC / Config / UART / GND)) Fig 1.
2.1 WL-DCM2400 Drawings Fig 2. Drawings Wavelabs, Inc.,: RM705, 7FL, Jangmiro 42, Bundang-gu Sungnam-City, Gyeonggi-do, Rep of KOREA Tel: +82.31.8017.7628 Fax: +82.31.8017.7629 -6- © 2020 Wavelabs, Inc.
2.2 WL-DCM2400 Connectors & LED indication Fig 3. LED indication PWR (Red) Red LED turns on when WL-DCM2400 input voltage (+7 ~ +12 VDC) is applied. TX LED (Red) TX red LED is ready and TX red LED blinks repeatedly to indicate data transmission status. RX LED (Green) RX green LED is ready and RX green LED blinks repeatedly to indicate data reception status. Indication of received signal strength (Blue) : RSSI As the received signal strength increases, 1 to 3 blue LED lights increase.
Fig 4. Connector & USB USB When connected to a PC, a USB port provided for user convenience through a serial to USB port . (Micro 5 Pin to USB) JST Connector (6 Pin) Input DC volatage : +7 ~ +12 VDC Pin No. 1 2 3 4 5 6 Config (COMMAND) : Using for firmware download UART (DATA) : UART communication between devices Signal VCC Config RX UART TX GND GND Table 2. JST Connector Pin ANT SMA Connector Wavelabs, Inc.
3. RF module command RF module can be controlled by AT command, and it is composed in the form of “AT+[Enter]” : [Enter] means newline character, CR(0x0D) + LF(0x0A) character 3.1 Enter command mode Check whether to enter “Command Mode” for 5 seconds after powering on the RF module.
3.2.1 AT+I Function Module information output Example TX AT+I[Enter] Example RX [Enter] Parameter 0 : Product Name 1 : Firmware Version 2 : Module MAC Address Remark Table 5. AT+I description 3.2.2 AT+F Function Example Module frequency band setting TX AT+F [Enter] Example RX OK Parameter Communication frequency start value, unit : MHz (Default : 2405.0, Min : 2402.
3.2.4 AT+S Function Saving the module current setting to the flash memory Example TX AT+S[Enter] Example RX OK[Enter] Parameter Remark After changing the settings in “command mode”, go to “RF transmission/reception mode” without saving, previously changed values are not applied when switching Table 8. AT+S description 3.2.
4.5 Power requirements WL-DCM2400 uses DC input voltage +7 ~ +12 VDC. (If the supply voltage/current does not meet the requirements, normal operation may not be possible or the product may be damaged) 5. User description 5.1 POWER SUPPLY The module supply power is +7 ~ +12V, and the user should consider the current capacity when applying power. 5.2 UART PORT It processes transmission/reception data by connecting it to the UART Port of the connecting device. 5.
