--- title: "#sensors articles | Hashnode" description: "Explore 71 articles tagged #sensors on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/sensors" --- Tag # #sensors 71 posts · 10 followers [circuitrocks](https://hashnode.com/@circuitrocks) · [2d ago](https://hashnode.com/posts/build-a-solar-powered-raspberry-pi-zero-w-weather-station/6af29943a715b893ed8faeb9) ### [Build a Solar-Powered Raspberry Pi Zero W Weather Station](https://circuitrocks.hashnode.dev/build-a-solar-powered-raspberry-pi-zero-w-weather-station?utm_source=hashnode&utm_medium=feed) Solar-Powered Raspberry Pi Zero: Jack Young's mobile weather station runs on a Pi Zero W and a solar panel. 3 min read · [circuitrocks.hashnode.dev](https://circuitrocks.hashnode.dev/build-a-solar-powered-raspberry-pi-zero-w-weather-station?utm_source=hashnode&utm_medium=feed) [circuitrocks](https://hashnode.com/@circuitrocks) · [5d ago](https://hashnode.com/posts/esp32-demoboard-adds-5-sensor-projects-nfc-lightning-gestures/6aeea494461d4a0e6f4dd64f) ### [ESP32 Demoboard Adds 5 Sensor Projects: NFC, Lightning, Gestures](https://circuitrocks.hashnode.dev/esp32-demoboard-adds-5-sensor-projects-nfc-lightning-gestures?utm_source=hashnode&utm_medium=feed) ESP32 Demoboard Adds 5: Five new Arduino demos for an ESP32 demoboard cover gesture sensing, lightning detection, NFC, air pressure and a PIR alarm. 2 min read · [circuitrocks.hashnode.dev](https://circuitrocks.hashnode.dev/esp32-demoboard-adds-5-sensor-projects-nfc-lightning-gestures?utm_source=hashnode&utm_medium=feed) [Kevin Pan](https://hashnode.com/@yoyouv) · [Nov 4](https://hashnode.com/posts/uv-intensity-sensor-calibration-for-water-disinfection-a-field-sop-buyers-actually-use/6aeb6848fe54c4041ca7683c) ### [UV Intensity Sensor Calibration for Water Disinfection: A Field SOP Buyers Actually Use](https://yoyouv.hashnode.dev/uv-intensity-sensor-calibration-for-water-disinfection-a-field-sop-buyers-actually-use?utm_source=hashnode&utm_medium=feed) UV Intensity Sensor Calibration for Water Disinfection: A Field SOP Buyers Actually Use Your UV reactor can look healthy on the HMI and still be off-spec. The dose algorithm only trusts what the inten 7 min read · [yoyouv.hashnode.dev](https://yoyouv.hashnode.dev/uv-intensity-sensor-calibration-for-water-disinfection-a-field-sop-buyers-actually-use?utm_source=hashnode&utm_medium=feed) [circuitrocks](https://hashnode.com/@circuitrocks) · [Nov 1](https://hashnode.com/posts/diy-handheld-spectrometer-uses-a-tcd1304-ccd-and-stm32/6ae6bbb13c186adf4efae29c) ### [DIY Handheld Spectrometer Uses a TCD1304 CCD and STM32](https://circuitrocks.hashnode.dev/diy-handheld-spectrometer-uses-a-tcd1304-ccd-and-stm32?utm_source=hashnode&utm_medium=feed) DIY Handheld Spectrometer Uses: An STM32 board, a TCD1304 linear CCD and a 4-inch SPI display turn a diffraction grating into a battery-powered pocket… 2 min read · [circuitrocks.hashnode.dev](https://circuitrocks.hashnode.dev/diy-handheld-spectrometer-uses-a-tcd1304-ccd-and-stm32?utm_source=hashnode&utm_medium=feed) [circuitrocks](https://hashnode.com/@circuitrocks) · [Oct 31](https://hashnode.com/posts/hidden-lockbox-opens-only-to-a-secret-magnet-gesture/6ae667637f139374a600e688) ### [Hidden Lockbox Opens Only to a Secret Magnet Gesture](https://circuitrocks.hashnode.dev/hidden-lockbox-opens-only-to-a-secret-magnet-gesture?utm_source=hashnode&utm_medium=feed) No keyhole, no keypad: a Teensy 4.1 and an 8x8 Hall-sensor grid unlock this wooden box only when you trace the right magnetic gesture. 2 min read · [circuitrocks.hashnode.dev](https://circuitrocks.hashnode.dev/hidden-lockbox-opens-only-to-a-secret-magnet-gesture?utm_source=hashnode&utm_medium=feed) [circuitrocks](https://hashnode.com/@circuitrocks) · [Oct 22](https://hashnode.com/posts/weekend-build-give-your-plant-a-tamagotchi-face-with-esp32/6ad9d330a293591fd7f4bb30) ### [Weekend Build: Give Your Plant a Tamagotchi Face with ESP32](https://circuitrocks.hashnode.dev/weekend-build-give-your-plant-a-tamagotchi-face-with-esp32?utm_source=hashnode&utm_medium=feed) Weekend Give Plant Tamagotchi: CMU's OATs put an ESP32-S3 and E Ink face on plants and fridges. 2 min read · [circuitrocks.hashnode.dev](https://circuitrocks.hashnode.dev/weekend-build-give-your-plant-a-tamagotchi-face-with-esp32?utm_source=hashnode&utm_medium=feed) [circuitrocks](https://hashnode.com/@circuitrocks) · [Oct 20](https://hashnode.com/posts/raspberry-pi-pico-halloween-builds-motion-triggered-spooky-props/6ad7e6fe93334495cd0512d6) ### [Raspberry Pi Pico Halloween Builds: Motion-Triggered Spooky Props](https://circuitrocks.hashnode.dev/raspberry-pi-pico-halloween-builds-motion-triggered-spooky-props?utm_source=hashnode&utm_medium=feed) Pico-powered Halloween props: LED skulls, a skeleton robot, and a portrait with moving eyes. Here is how to wire a motion trigger without frying a GPIO. 2 min read · [circuitrocks.hashnode.dev](https://circuitrocks.hashnode.dev/raspberry-pi-pico-halloween-builds-motion-triggered-spooky-props?utm_source=hashnode&utm_medium=feed) [circuitrocks](https://hashnode.com/@circuitrocks) · [Oct 6](https://hashnode.com/posts/unihiker-k10-package-measurer-tof-sensor-plus-scale/6ac572cc9f270477193e1776) ### [UNIHIKER K10 Package Measurer: ToF Sensor Plus Scale](https://circuitrocks.hashnode.dev/unihiker-k10-package-measurer-tof-sensor-plus-scale?utm_source=hashnode&utm_medium=feed) UNIHIKER K10 Package Measurer: A UNIHIKER K10, an 8x8 ToF matrix, and an HX711 scale team up to measure a parcel's weight and size, then pull up shipping… 2 min read · [circuitrocks.hashnode.dev](https://circuitrocks.hashnode.dev/unihiker-k10-package-measurer-tof-sensor-plus-scale?utm_source=hashnode&utm_medium=feed) [circuitrocks](https://hashnode.com/@circuitrocks) · [Sep 27](https://hashnode.com/posts/ironears-esp32-s3-sensor-hears-500-sounds-skips-the-camera/6ab9967ffa562dd841ca04b4) ### [IronEar's ESP32-S3 Sensor Hears 500 Sounds, Skips the Camera](https://circuitrocks.hashnode.dev/ironears-esp32-s3-sensor-hears-500-sounds-skips-the-camera?utm_source=hashnode&utm_medium=feed) IronEar's ESP32-S3 Sensor Hears: An open-source ESP32-S3 sensor node classifies 500+ household sounds on-device and reports to Home Assistant over MQTT or… 3 min read · [circuitrocks.hashnode.dev](https://circuitrocks.hashnode.dev/ironears-esp32-s3-sensor-hears-500-sounds-skips-the-camera?utm_source=hashnode&utm_medium=feed) [circuitrocks](https://hashnode.com/@circuitrocks) · [Sep 25](https://hashnode.com/posts/three-kids-built-a-raspberry-pi-3-underwater-camera-for-130/6ab6f2eaaa539aa6a2a1c1af) ### [Three Kids Built a Raspberry Pi 3 Underwater Camera for £130](https://circuitrocks.hashnode.dev/three-kids-built-a-raspberry-pi-3-underwater-camera-for-130?utm_source=hashnode&utm_medium=feed) Three kids sealed a Raspberry Pi 3 and a DS18B20 sensor in a £130 acrylic tube to log river temperature and video on their own. 2 min read · [circuitrocks.hashnode.dev](https://circuitrocks.hashnode.dev/three-kids-built-a-raspberry-pi-3-underwater-camera-for-130?utm_source=hashnode&utm_medium=feed)