IrCode Finder NEC protocol

Discover the IrCode Finder NEC protocol, a versatile tool designed to assist you in finding the correct infrared (IR) codes for your devices. This app boasts an extensive database of remote control codes, ensuring that you can conveniently locate the right match for a variety of appliances such as chandeliers, fans, acoustics, and other simple devices. Its utility shines when handling products that have been on the market for an extended period, potentially facilitating the replacement of lost or dysfunctional remotes.

For those instances where your specific device code is not readily available, the platform facilitates an automatic testing function to identify the appropriate IR codes within the NEC protocol. For successful operation, it's worth noting that your device should be equipped with an IR transmitter.

IrCode Finder NEC Protocol

Introduction

IrCode Finder is a tool designed to help users decode infrared (IR) signals emitted by remote controls. It supports various IR protocols, including the NEC protocol, which is widely used in consumer electronics devices such as TVs, DVD players, and air conditioners.

NEC Protocol Overview

The NEC protocol is a simple and efficient protocol for transmitting IR signals. It uses a 32-bit code structure, consisting of:

* Header: A 16-bit preamble used to synchronize the receiver.

* Address: A 6-bit field used to specify the target device.

* Command: An 8-bit field used to indicate the desired action.

* Complement: An 8-bit field used to verify the data integrity.

Decoding NEC Signals

IrCode Finder uses an algorithm to decode NEC signals received by an IR receiver. The algorithm involves the following steps:

1. Header Detection: The algorithm searches for a valid header pattern (0x8080) in the received signal.

2. Address Extraction: Once the header is detected, the next 6 bits are extracted to determine the device address.

3. Command Extraction: The following 8 bits are extracted to determine the command code.

4. Complement Verification: The final 8 bits are extracted and compared to the complement of the address and command fields. If the values match, the signal is considered valid.

IrCode Finder Features

IrCode Finder provides several features to assist users in decoding NEC signals:

* Signal Capture: Users can manually capture IR signals using an IR receiver connected to the computer.

* Signal Display: The captured signal is displayed in a graphical format, showing the individual bits and their timing.

* Code Decoding: The decoded NEC code is displayed, including the address, command, and complement fields.

* Code Generation: Users can generate NEC codes for specific devices and commands, which can be used to create custom remote controls or control devices through software.

Conclusion

IrCode Finder NEC protocol is a valuable tool for understanding and working with NEC-based IR signals. Its user-friendly interface and advanced features make it suitable for both hobbyists and professionals working with infrared communication systems.