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The IR Remote Control (Without Battery) is a versatile and easy-to-use 21-key infrared remote designed for hobbyists, developers, and engineers working with microcontroller-based systems. Perfectly compatible with standard IR receiver modules (such as TSOP1838), this remote is ideal for wireless control of robots, appliances, or Arduino projects from a distance.
This remote features a clear and intuitive button layout, including numeric, volume, and media keys, making it excellent for projects that require simple wireless commands. Powered by a CR2025 coin cell (not included), it’s lightweight, responsive, and reliable over distances of 5 to 8 meters.
🔧 Key Features
- 21-key layout with clearly marked functions
- Compatible with TSOP-based IR receiver modules
- Infrared wavelength around 940nm
- Supports a wide variety of Arduino and microcontroller projects
- Responsive over medium distances (5–8 meters typical)
- Ideal for controlling DIY electronics wirelessly
📐 Technical Specifications
| Product Name | IR Remote Control (Without Battery) |
| Number of Buttons | 21 |
| Compatible Receivers | IR modules like TSOP1838, VS1838B |
| Power Supply | 1 × CR2025 coin cell (not included) |
| IR Wavelength | ~940nm |
| Operating Distance | 5–8 meters (typical) |
| Transmission Angle | Up to 45° |
| Dimensions | ~86mm × 40mm × 7mm |
| Weight | ~15g |
| Status | Battery Not Included |
📌 Applications
- IR remote-controlled Arduino and ESP projects
- Wireless control for robots and motor systems
- TV remote replacements or DIY automation
- Home automation prototypes using IR
- Learning and testing IR signal decoding
💡 Why Choose This Remote?
This 21-key IR Remote offers a lightweight, inexpensive solution for wireless input control in electronics projects. It’s compact, intuitive, and compatible with widely available IR receivers, making it ideal for students, makers, and engineers alike.
📦 Package Includes
- 1 × IR Remote Control (Battery not included)
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