IR decoding module NEC IR Transmitter and receiver

Size: 27 * 17MM 

Supply voltage: 5V 

Communication: serial communication (TTL level) 

Transmission range :6-10 meters (OUR actual environmental testingeight meters Stability Control)

A functional description.

1. With the NEC format infrared transmitter function. 



2. With NEC infrared encoding format. 



3. With the infrared emission head expansion interface. 



4. With serial communication functions, communication level is TTL. 



5. Can control 99% of the NEC IR format devices, including televisions, fans and other electrical and electronic equipment. 



6. Support for NEC encoding chips: (typical encoding chips such as uPD6121, uPD6122, TC9012 and numerous compatible chip model, such as the PT2221, PT2222, SC6121, SC6122, SC9012, etc.) 



Second, the scope of application



Infrared intelligent home electronic design students turn wireless smart industrial equipment 

IR infrared remote controller to control MP3 decoding device electronic building blocks kit 


Electronic equipment designed to control the wireless transfer infrared remote infrared encoding device Smart car 


Third, the use 



How to use this module is very simple, the following electronic and non-electronic professional conduct professional commentary:



Electronic Specialty: 

Only need to use the single-chip serial communication of knowledge, sending commands through the serial control module specified emission; infrared encoding operation through the serial receive mode, remote access to the encoded information. 

Decoding: decoding do not need to send any commands, just pick up the remote control receiver alignment module is pressed, then the serial port module outputs the infrared codes. 

Coding (transmitter): Need to send commands based on certain format encoding, serial send 5 byte instruction via computer or microcontroller, it can be coded infrared signal corresponding reduction out. 

Take advantage of this infrared transceiver functions, we can do an infrared data transmission and control, purchase two sets to complete the operation of the transceiver. 


Non-electronic specialty:



If the customer does not know how to shop SCM knowledge can be used in conjunction computer's USB to TTL control other devices connected to the circuit after a good computer PC software can send and receive simple commands to achieve encoding and decoding functions. 

--------------- Illustrate ------------------- 
Transmitting signals encoded as 1C 2F 33, the signal data bit 3: 
{A1, F1, 1C, 2F, 33} 
------- 
Modify serial communication address 0xA5 
{A1, F2, A5, 00,00} 
------- 
Modify the baud rate of 4800bps (corresponding to the number 1) 
{A1, F3, 01,00,00}