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One touch can replace keys. This project uses an optical fingerprint sensor to enroll users and then grant access with a quick scan.
read tutorial →The JSumo 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.
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.
Pair it with a robot controller board, small DC motors, a compact chassis, and edge sensors for a complete mini robot setup.
Helpful add-ons include line sensors, spare wheels, extra IR sensors, and a mini sumo controller board for advanced strategy development.
| Product | JS40F Infrared Digital Distance Sensor |
|---|---|
| Product Code | JS16160 |
| Sensor Type | Digital infrared distance sensor |
| Typical Range | About 40 cm |
| Possible Maximum Range | Up to around 80 cm depending on target area and conditions |
| Best Use | Mini sumo robots and small robot projects |
| Extra Components Needed | No extra resistor, capacitor, or board required according to JSumo |
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.
1 × JS40F Mini Digital Sensor
| Product | Range / output | Best fit | Why choose it |
|---|---|---|---|
| JSumo JS40F Mini Digital Sensor 40cm | Digital output, 40 cm class | Mini sumo robots and small robot projects | Simple digital sensing in compact builds |
| JSumo JS200XF Long Range IR Sensor | Long-range IR, up to 200 cm | Longer opponent detection and automation | Earlier target detection and wider sensing |
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
One touch can replace keys. This project uses an optical fingerprint sensor to enroll users and then grant access with a quick scan.
read tutorial →Wire a joystick to your Arduino, read X/Y, then print UP / DOWN / LEFT / RIGHT to the serial monitor.
read tutorial →Bench-test a 43 A motor driver before wiring the full project. Catches weak power, mis-pinning, and dead boards before they cost you time.
read tutorial →Coming from UNO and the Pico won't show a COM port? Here's the BOOTSEL trick, the driver fix, and the first sketch that actually works.
read tutorial →Share what you built. Photos, BOM, what worked, what didn't.
view thread →Symptom + what you tried + clear photo = answers within hours.
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