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 Eason wireless module

Wireless data transmission module yl-101ts

Chip solution :CMT2300A
carrier frequency :420~450MHz
Transmitting power :20mW(13dBm)
Communication distance : 500 m in open field
Product size :23mm*23mm*2mm;
communication interface :UART-TTL
Product introduction This is a low cost, low power consumption, small size, micro power half duplex TTL wireless data transmission module. The system adopts GFSK modulation technology, has its own MCU, contains wireless transceiver communication program, does not change the user's data and protocol, users do not need to program and control the data receiving and sending process, and can realize the data transparent transmission (sending is receiving).

Product overview
This is a low-cost, low-power, small volume, micro power half duplex TTL wireless data transmission module. The system adopts GFSK modulation technology, has its own MCU, contains wireless transceiver communication program, does not change the user's data and protocol, users do not need to program and control the data receiving and sending process, and can realize the data transparent transmission (sending is receiving).


performance parameter Parameter value
Communication distance The sight distance of open field is 500m
Wireless solution CMT2300A
modulation technique Gaussian shift keying
Transmission direction Two way half duplex (can send and receive, automatically switch, but can not send and receive at the same time)
communication interface Uart-ttl 3.3V level
Interface form Patch type 1.5mm stamp port
Antenna interface Pad, impedance 50 Ω
carrier frequency 420 ~ 450MHz, 16 channels
Transmitting power 20mW(13dBm)
Receiving sensitivity -110dBm(@9600bps)
working voltage Optional DC 3.3V or 5V, specified when purchasing
Working current Transmit ≤ 70ma, receive ≤ 10mA, sleep ≤ 5ua
Series Rate Default: 2009600bps, 11500bps
data format One start bit, eight data bits, one stop bit, no check
Working mode Normal mode, central mode, node mode
Dormancy time It can be set for 2, 3, 4, 5, 6 seconds
Breathing time Optional 8ms (lower power consumption), 16ms (default, more stable communication)
Special functions Support EN pin wake-up, aux signal output wake-up user equipment
work environment -40 ℃~ 85 ℃, working humidity: 10% ~ 90% relative humidity, no condensation
Size Bare plate 23mm * 23mm * 2mm
 


Pin definition and Description:

Serial number Symbol Pin function
one GND Power ground, connected to user GND
two VCC Dc3.3v or 5V, specified when purchasing
three TXD Level data output, connected to user RXD
four RXD Level data input, connected to user TX
5/6/7/8/9 IO Reserved IO port, function not enabled
ten RX_ LED Wireless receiving indication
eleven TX_ LED Wireless transmission indication
twelve AUX In node mode, when en is set high, the module will pull down the aux pin 100 ms in advance after receiving the wireless data and before outputting through the serial port, which can be used to wake up the customer equipment
thirteen EN In the standard mode, low-level is working and high-level is sleeping; in central mode, low-level is fast communication, while high-level is long-term preamble; in node mode, low-level is fast communication, and high-level is periodic sleep wake-up;
fourteen TXC_ CTRL Antenna switch, this function is off
15/17 GND Connect antenna shield (if any)
sixteen RF Connect antenna
Note: all level signals are 3.3V, no matter in which mode, reading and writing parameters should be pulled down the EN pin. Whether reading and writing parameters or transmitting data, it is necessary to wait for 50 ms before the operation.



Product application
It is suitable for transparent transmission of equipment with uart-ttl 3.3V communication interface within 500m.