A grueling empirical evaluation of the 12 most popular Zigbee climate sensors. Covers sensor IC accuracy (Sensirion SHT vs AHT), reporting threshold delays, sub-zero battery performance in freezers, and Zigbee2MQTT offset calibration.
Compare the most popular Hi-Link 24GHz mmWave radar modules: HLK-LD2410, HLK-LD2450, HLK-LD2412, and HLK-LD2420. Discover their RF architecture, multi-target tracking capabilities, gate threshold calibration, and native ESPHome configurations.
Step-by-step DIY guide to building a micro-presence sensor with HLK-LD2410 and ESPHome. Covers hardware wiring, dual-state motion and still target detection, distance gate calibration, and Home Assistant automation.
Turn the STMicroelectronics VL53L5CX 8×8 direct Time-of-Flight LiDAR into an embedded 3D depth camera using ESP32. Covers high-speed I2C, Ultra Lite Driver (ULD), point-cloud streaming, and room contour mapping.
