STX888 SRX888 : Wireless Signal Duplication Module
This is a wireless signal duplication module that can remotely output any same waveform.
The module can transmit any digital waveform (such as pulse or serial waveform…) with a frequency below 9.6KHz. The module group is composed of a transmitting module (STX888) and a receiving module (SRX888). The waveform input to the DATA pin of the transmitting module will be output on the DATA pin of the receiving module.
STX888 and SRX888 is manufactured and tested strictly using lead-free process and complies with RoHS and Reach standards.
Note: Although the power supply of the transmitting module and the receiving module is 5V, the IO level of the module is 3.3V TTL, and the level compatibility should be considered when using.
Special Function
Signal Duplicated module
Features
Arbitrary waveform transmission
Low signal distortion
Simple to use, without any setting and programming
Long-distance communication (open> 500M)
Can customize more power,longer distance
Software and hardware multiple protection, can work stably in complex environment
Small delay (4ms)
16 frequency channels are optional to prevent wireless signal conflict
GFSK modulation, strong anti-interference ability
Transmit and receive ultra-low power consumption
Industrial grade application (-40~+ 85 ℃)
STX888 Pin Definitions:
Pin NO.
Definitions
Input/Output
Pin Description
1
VCC
Positive Power supply
2
GND
Power ground
3
CS
I
Module enable (pull down to sleep, pull up or float to work)
4
DATA
I
Data input pin
5
LED+
O
connect to positive pole of LED
6
LED-
O
connect to negative pole of LED (internal 1K resistor in series)
7
D1
I
Frequency channel selection
8
D2
9
D4
10
D8
11
GND
Power ground
12
GND
Antenna ground
13
ANT
Connect with 50 ohm coaxial antenna
SRX888 Pin Definitions:
Pin NO.
Definitions
Input/Output
Pin Description
1
VCC
Positive Power supply
2
GND
Power ground
3
CS
I
Module enable (low level sleep, sleep current is less than 5uA, default high level)
4
DATA
O
Data input pin
5
LED+
O
Connect to positive pole of LED
6
LED-
I
Connect to negative pole of LED (internal 1K resistor in series)
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