smallsolar4h ago

I've been super busy with real world stuff but finally got to tick off a job by adding a SHT30 Temp and Humidity Sensor to my little setup in the cold frame I built last year.

It means that it's now reporting temp, humidity and battery voltage which actually starts being useful. We've had very variable weather in the last few weeks, jumping from hot days to near freezing so it's helpful to know how the cold frame is functioning. ITs all powered by some flexible solar panels

I've set it up on my #grafana dashboard of course...

#solarpanels
#solarPV
#esp32
#sensors

cnx-software.com13h ago

RuView project leverages ESP32 nodes for WiFi-based presence detection, pose estimation, and breathing/heart rate monitoring

https://fed.brid.gy/r/https://www.cnx-software.com/2026/03/26/ruview-project-leverages-esp32-nodes-for-presence-detection-pose-estimation-and-breathing-heart-rate-monitoring/

RuView project leverages ESP32 nodes for WiFi-based presence detection, pose estimation, and breathing/heart rate monitoring

RuView is an open-source "WiFi DensePose" implementation leveraging multiple ESP32 nodes to turn WiFi signals into real-time human pose estimation, vital sign monitoring, and presence detection without relying on video cameras. WiFi DensePose is a sensing technique, first explored in academic research, that leverages WiFi signals to reconstruct human pose. RuView implements this technique in Rust or Python, and relies on your WiFi router and several ESP32 nodes to track body pose, detect breathing rate, and measure heart rate even through walls. As we'll discuss below, this project has its own controversy, as some claim it's fake. The solution relies on Channel State Information (CSI) disturbances caused by human movement to reconstruct body position, breathing rate, heart rate, and presence in real time using "physics-based signal processing and machine learning". That obviously means you need CSI-capable hardware, and not all consumer WiFi nodes implement it. The project description lists various

CNX Software - Embedded Systems News
3D Print 🧵 3Dable.IT1d ago
Researchers at the University of Brighton and University of Strathclyde have developed a 3D printed electrochemical sensor capable of detecting cardiac troponin I, a protein released during heart attacks. The platform uses electrodes costing just 17 cents each, potentially making heart attack diagnosis more accessible. The research was published in Analytical Chemistry. #3Dprint #3Dprinting #Healthcare #Medical #HeartAttack #Sensors https://3dprintingindustry.com/news/new-research-on-3d-printed-heart-attack-sensing-platform-with-17-cents-electrodes-250157/
New Research on 3D Printed Heart Attack Sensing Platform With 17 Cents Electrodes - 3D Printing Industry

Researchers from the University of Brighton and University of Strathclyde have developed an electrochemical sensor platform capable of detecting a heart attack protein biomarker in human blood serum. Published in Analytical Chemistry, the study targets cardiac troponin I, a protein released into the bloodstream when heart muscle is damaged and the central biomarker in heart […]

3D Printing Industry
cnx-software.com1d ago

RainbowLink-V2 compact USB-to-serial converter features 12V output, dual TTL, isolated RS-485 and RS-232 interfaces

https://fed.brid.gy/r/https://www.cnx-software.com/2026/03/25/rainbowlink-v2-compact-usb-to-serial-converter-features-12v-output-dual-ttl-isolated-rs-485-and-rs-232-interfaces/

RainbowLink-V2 compact USB-to-serial converter features 12V output, dual TTL, isolated RS-485 and RS-232 interfaces

DFRobot's RainbowLink-V2 USB-to-serial converter features four independent channels, namely one isolated RS-485, one isolated RS-232, and two TTL interfaces usable simultaneously. The compact tool also converts 5V provided from the host's USB interface to 12V/800mA, 5V/2A, and 3.3V/200mA outputs, eliminating the need for a separate power adapter. RainbowLink-V2 (TEL0190) specifications: USB - 1x USB Type-C port for power and adata Serial 2x TTL (3.3V) via headers 1x fully isolated RS485 channel via lever terminal 1x fully isolated RS232 channel via lever terminal Baud Rate - 2400 to 128000 bps Misc 3x Power LEDs for 3.3V, 5V, and 12V 4x Link LEDs for TTL 1/2, RS232, and RS485 12AWG - 22AWG wires supported on lever-type spring terminals Built-in short-circuit protection and overcurrent protection (but users are still recommended to avoid short-circuiting to prevent damage) Input voltage - 5V via USB-C port Output voltage 3.3V up to 200mA via header 5V up

CNX Software - Embedded Systems News
ISSRSensor1d ago

Optical sensors struggle with clear objects on the line because light just passes through them.

We compared the two best alternatives: Capacitive vs. Ultrasonic sensors. Our guide covers sensing ranges, immunity, and use cases (bottle counting vs. micro-plastics).

Stop false triggers and read our installation best practices here:
https://issrsensor.com/capacitive-vs-ultrasonic-sensors-clear-object-detection/

#Engineering #Automation #Sensors #IndustrialAutomation

Paul Houle2d ago

👃🏽 Why city street surveys miss methane leaks, and what that means for safety

https://techxplore.com/news/2026-02-city-street-surveys-methane-leaks.html

#methane #environment #safety #climatechange #sensors

Why city street surveys miss methane leaks, and what that means for safety

The complexities of urban environments—like variable winds off tall buildings or surfaces—significantly impair the ability to detect natural gas leaks from underground pipelines, a new study shows. SMU researchers found that detection probability can be reduced by 16 percentage points for methane gas leaks from main pipelines and by as much as 38 percentage points for service line leaks in urban areas, compared to rural settings.

Tech Xplore
sayzard3d ago

田中義弘 | taziku CEO / AI × Creative (@taziku_co)

고등학생이 만든 로봇 작업물이 실전적인 이동 로봇 제어 수준까지 구현됐다. 주행 중 공을 회수하고 멈추지 않고 슈팅해 카트에 넣는 등 기계, 센서, 소프트웨어를 통합한 고성능 로봇 제어 사례로 소개됐다.

https://x.com/taziku_co/status/2035852219346751900

#robotics #automation #sensors #control #engineering

田中義弘 | taziku CEO / AI × Creative (@taziku_co) on X

高校生のロボット工作、 かなり実戦的な移動ロボット制御に仕上がる。 走りながらボールを回収し、 停止せずにシュートしてカゴへ。 しかも速度も精度も高い。 機械・センサー・ソフトを ここまで統合できるのはシンプルに凄い。 via：@lukas_m_ziegler

X (formerly Twitter)
sayzard3d ago

Lukas Ziegler (@lukas_m_ziegler)

고등학생들이 멈추지 않고 이동하면서 공을 집어 통에 넣는 자율 로봇을 직접 제작했다. 기계 설계, 센서, 자율 동작을 결합해 빠른 속도와 정확도를 보여준 사례로, 교육용 로보틱스와 실전형 자율 시스템의 가능성을 잘 보여준다.

https://x.com/lukas_m_ziegler/status/2035739325296472390

#robotics #autonomy #stem #sensors #education

Lukas Ziegler (@lukas_m_ziegler) on X

High school students built an autonomous ball-collecting robot! 🎾 A group of high school students built a robot that picks up balls and shoots them into a bin while moving without stopping, with impressive speed and accuracy. It combines mechanical design, sensors, and

X (formerly Twitter)
CBC British ColumbiaMar 17
Could this new height detection system stop overpass strikes in B.C.?
A system of infrared laser beams, sensors, radar and beacons is being built on Highway 1 near the No. 3 Road overpass in Abbotsford, B.C., to prevent over-height vehicles from causing major damage.
https://www.cbc.ca/news/canada/british-columbia/local/bc-overpass-strikes-prevention-system-9.7131289?cmp=rss
Show threadGareth HalfacreeMar 17

Then a #crowdfunding campaign for something I desperately want: an acoustic camera. You know how thermal cameras let you see heat? Yeah, well, this uses a microphone array to see sound.

Can't justify dropping $900 on one, though, even if that *is* a lot cheaper than the $18,000 FLIR will charge you for their version...

https://www.hackster.io/news/the-crysound-pocket-now-crowdfunding-lets-you-see-exactly-where-that-sound-is-coming-from-727f511f9b4d

#Technology #News #Hackster #Sensors

The CRYSOUND POCKET, Now Crowdfunding, Lets You See Exactly Where That Sound Is Coming From

A 64-channel microphone array creates a thermal camera-style heatmap for sound, at a fraction of the cost of brand-name acoustic cameras.

Hackster.io