LD2410B 24GHz Radar Smart Human Presence Sensing Module
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$10.15at WalmartChecked Nov 12
Compared across 2 stores. Prices are checked against each store and labelled with when.
Compared across 2 stores. Prices are checked against each store and labelled with when.
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The LD2410B is a bare 24GHz radar module that detects people, not just motion. It uses FMCW radar and an on-board algorithm to report moving and stationary human targets, with distance to the target, up to 6 meters away at 0.75m resolution. It outputs over UART and GPIO and is configured through a companion tool that sets detection range, per-zone sensitivity and an unoccupied delay. It is a component for makers and product developers building presence-aware lighting, HVAC or alarm logic, not a finished sensor with a case or app. Compared with passive infrared sensors, it keeps detecting someone who is sitting still, but it needs a host microcontroller and some tuning to avoid false triggers.
In stockSold by TY tujuehu CO.LTDReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
Availability unknown
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Lowest price we've seen: $11.23 on Nov 13 at Amazon. Tracked across 1 store since Nov 13.
Owners treat the LD2410B as a capable, inexpensive presence sensor for DIY automation. They praise its ability to keep detecting people who are still and its adjustable zones, and note that it takes tuning to stop false triggers from moving objects.
The LD2410B is a 24GHz human presence sensing module. It uses FMCW (frequency modulated continuous wave) radar, together with signal processing and a human sensing algorithm, to detect people in a set space. It can identify a person who is moving or standing still, and it calculates auxiliary information such as the distance to the target.
It is mainly used indoors to sense movement or micro-movement of the human body in an area, and it outputs the results in real time. Sensing distance is up to 6 meters, with a resolution of 0.75 m.
A configuration tool lets you set the sensing distance range, the sensitivity in different distance intervals, the unattended delay time and other settings. The module supports GPIO and UART output and is plug-and-play, so it can be used in different smart scenarios and end products.
