KL715 Wireless Tx+Rx 433MHz - Learn

This remote control can be used for a wide variety of household applications, such as garage doors, electric gates, light systems, and so forth. The remote uses 433MHz frequency to communicate with the receiver which uses the EV1527 chip.



The EV1527 chip is a learning code and has 2 to the 20th power address (1048576 unique addresses), thus reducing the number of duplicate addresses drastically, thus increasing the security level. The remote can be used to duplicate the code of an existing remote.

Quick Spec

• Remote (transmitter)
• 2 Buttons
• Frequency: 433MHz
• Operating Voltage: 12V
• Operating Current: 10mA
• RF Output Power (ERP) @433MHz: 3-10mW
• Transmitting Distance: 50-150m
• Encoding Type: Fixed Code (2260, 2262, HT12E, etc.), Learning Code (1527, 527, RT1587, etc.), Rolling Code (HCS301)
• Encoding Method: Soldering or by Learning code - Fixed Code / Auto code learning - Learning Code and Rolling Code
• Power Supply: 1 x 23A 12V
• KL-CWXM03 Receiver
• Working Voltage: DC3/5V
• Operating Current: 4mA
• Receive Frequency: 315/433MHz, 260-480MHz
• Receiver Sensitivity: -115 dBm
• EV1527 Learning Chip
• Size: 39 x 19 x 7mm
• Net Weight: 25g

Matching Transmitter

Match Code

When the receiver module is powered, hold the learning button and the LED indicator blinks, then press any button of remote control or power a transmitter module to launch, if indicator flashes 3 times, match code successfully. Maximum 20 remote controls / transmitter modules can be matched.

Delete Code

Hold learning button till the indicator LED lights and then off, delete successfully.

Set Working Mode

S1 & S2 program the sequence as follows:
S1 Short Circuit = Toggle
S2 Short Circuit = Latching
S1 & S2 both not short = Momentary

Introduction of Working Modes

The following introduction will describe how momentary, latching and toggle working using example of typical two channel receiver. The transmitter button A controls channel 1 while transmitter button B controls channel 2.
1. Toggle - Press A > Channel 1 ON and remains ON, Press A again > Channel 1 OFF
2. Momentary - Press and hold A > Channel 1 ON, Release A > Channel 1 OFF
3. Latching - Press A > Channel 1 ON and remains ON while Channel 2 OFF, Press B > Channel 2 ON and remains ON while Channel 1 OFF

ESP32 Code for Arduino IDE

Resources

• DECODING AND SENDING 433MHZ RF CODES WITH ARDUINO AND RC-SWITCH - Instructables
• Arduino PT2262 or Ev1527 Receiver Library - GitHub
• EV1527 Library Forum
• The Difference Between Fixed Code (PT2262) and Learning Code (EV1527)

Shipping List

• 1 x 2 Button Remote (Transmitter)
• 1 x KL-CWXM03 Receiver