Ai-Thinker Rd-03L V2 is a 24GHz human presence sensor optimized for ultra-low-power radar detection in battery-powered and always-on devices. This Ai-Thinker radar module combines a compact footprint, FMCW millimeter wave sensing, and low standby power to support presence detection, occupancy sensing, and smart building automation where efficiency matters. Built around the ICL1112 radar solution, Ai-Thinker Rd-03L V2 supports human presence detection for moving, slightly moving, and stationary targets. Its low-power profile makes this 24GHz mmWave sensor a strong option for battery devices, smart lighting, security sensing, and occupancy-aware IoT systems that need longer runtime and reliable indoor detection. Features 24GHz human presence radar for moving, micro-moving, and stationary human detection. Ultra-low-power design for battery-powered sensing and energy-sensitive IoT products. Up to 8m sensing distance with configurable thresholds and reporting behavior. UART and GPIO support for flexible integration into embedded systems. Supports IAP online upgrade and parameter configuration for practical deployment. Suitable for Ai-Thinker smart sensor, occupancy detection, smart home radar, and automation control. Specifications Parameter Specification Model Ai-Thinker Rd-03L V2 Radar Type 24GHz FMCW millimeter wave radar Chip Solution ICL1112 Frequency Band 24.00GHz to 24.25GHz Package DIP-5, 2.54mm pitch Module Size 17.5 x 19.0mm (+/-0.2mm) Power Supply 3.0V to 3.6V, recommended 3.3V Sensing Range Up to 8m, +/-60 degrees coverage Communication UART, default 256000bps Interfaces UART and GPIO Operating Temperature -40C to 85C Low-Power Characteristic About 80uA at 1Hz reporting frequency Applications Battery-powered occupancy sensors and low-power smart detectors. Smart lighting, smart building, and indoor energy-saving control. Security sensing for indoor human presence monitoring. IoT products that need a compact Ai-Thinker human presence radar. Other Content Ai-Thinker Rd-03L V2 stands out when low power is more important than using a larger, higher-consumption radar module. It is a practical 24GHz presence sensor for developers building long-life indoor sensing products. Read: What's the difference between Ai-Thinker Rd-03 and Rd-03D? Resources Ai-Thinker Rd-03 Series Official Documentation Ai-Thinker Rd-03L V2 Datasheet FAQ Why choose Rd-03L V2 for battery-powered products?Ai-Thinker Rd-03L V2 is designed for low-power radar sensing, which makes it more suitable for always-on, energy-sensitive devices than a higher-consumption radar module. What can this module detect?This Ai-Thinker 24GHz radar can detect moving, slightly moving, and stationary people for indoor presence sensing and occupancy automation. Can it be used in smart lighting projects?Yes. The module is well suited to smart lighting, room occupancy detection, and other indoor automation scenarios.
