He’s also built a test rig to compare this sensor with other particle sensors (the DSM501A and Sharp sensors). The data from the Maxim sensor looks good, but it’s not good enough for a Tricorder.

Inside, it packs a Honeywell HPMA115S0-TIR laser particle sensor, hooked up to an ESP32 which runs the show. The sensor chosen makes things easy, with the device already set up with a blower and ...

The ESPHome 2025.6.0 open-source firmware was released on June 18, 2025, with ESP32-P4 support and an initial OpenThread ...

CyberOptics ® Corporation, a leading global developer and manufacturer of high-precision 3 D sensing technology solutions, will exhibit at SPIE Advanced Lithography from February 25-26, 2020 at ...

CyberOptics’ Airborne Particle Sensors improve equipment set-up and long-term yields in semiconductor fabs by wireless monitoring airborne particles in real-time. This next-generation APS2 enables: ...

Espressif Systems makes the chip, and its ESP32 data sheet has nearly no mention of the Hall sensor – this is the longest and most detailed section:. 4.1.3 Hall Sensor ESP32 integrates a Hall sensor ...