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The HX1838, also referred to by its related VS1838 receiver chip, is an infrared receiver module built to work with the widely supported NEC protocol, and this kit includes not just the receiver module but a matching remote control as well, saving the trouble of sourcing and testing a compatible remote separately. The receiver combines a photo-detector and preamplifier in a single package, with an internal filter tuned to the PCM frequency used by IR remotes and improved shielding against electromagnetic interference from nearby electronics.
Its crystal oscillates at a frequency of 455, matching the standard used by NEC-encoded remotes, and the module outputs a clean digital signal representing the received IR pulses, ready to be decoded in software using widely available IR remote libraries for Arduino and similar microcontrollers.
Transmission distance reaches up to 8m under good conditions, though the effective range depends on environmental conditions and any obstructions between the remote and receiver, and the effective reception angle is 60 degrees, so the remote generally needs to be pointed reasonably close to straight at the receiver rather than from a sharp side angle. Supply voltage ranges from 2.7V to 5.5V with a static or dynamic current draw of just 3 to 5mA, and the receiver module outputs a 5V-compatible digital signal usable directly by both 3.3V and 5V microcontrollers.
The included remote measures 85.7mm by 40mm by 6.5mm and weighs about 10g, and runs on a CR2025 coin cell battery, which is not included with the kit.
Arduino and microcontroller hobbyists wanting to add remote control to a project, whether for a robot, a media center display or a home automation device, will find this kit a convenient, ready-matched receiver-and-remote pairing to start from.
Yes, a matching IR remote control is included in the kit.
The NEC protocol.
Up to 8m, depending on environmental conditions and obstructions.
2.7V to 5.5V.
No, the remote uses a CR2025 coin cell, which is not included.
| Brand | Generic |
|---|---|
| Kit Includes | IR Remote + Receiver Module |
| Selling unit | PCS |
