Compact Digital IR Sensor for Mini Sumo and Small Robot Projects

The JS40F Mini Digital Sensor 40cm is a compact infrared distance sensor designed specifically for mini sumo robots and other small autonomous robot builds. JSumo describes it as a digital distance sensor with a minimum range target around 40 cm, while some conditions can allow detection up to around 80 cm.

One of its strengths is simplicity. JSumo notes that the JS40F does not need extra resistor, capacitor, or additional board hardware, making it easier to integrate than some traditional IR sensor setups.

Why you'll love it

• Made for mini sumo: Designed with small robot projects in mind
• Compact footprint: Good for tight robot layouts
• Simple digital output: Easy to read in robot logic
• No extra board parts needed: Easier integration in fast builds
• Useful short-range opponent sensing: Great for reaction-based robots

What you can build

Use the JS40F in mini sumo robots, micro sumo bots, small avoidance robots, compact autonomous robots, and school competition builds where simple digital detection is preferred.

Starter bundles

Pair it with a robot controller board, small DC motors, a compact chassis, and edge sensors for a complete mini robot setup.

Recommended add-ons

Helpful add-ons include line sensors, spare wheels, extra IR sensors, and a mini sumo controller board for advanced strategy development.

Technical specifications

Pinout & usage notes

Compact digital sensors like the JS40F are best placed where you want quick object detection logic rather than analog distance measurement. Test sensor height, angle, and target reflectivity to get the best real-world performance.

What’s in the box

1 × JS40F Mini Digital Sensor

Frequently Asked Questions