For a long time, even my smallest automations ended up living inside my home lab. If I wanted to post a daily update or monitor something simple, I’d spin up a container, wire in a script, and let it ...

How Does the ESP32 WhatsApp Alert Message Work? The ESP32 uses its built-in WiFi to communicate with CircuitDigest Cloud WhatsApp API and send WhatsApp notifications whenever a sensor condition is ...

Changes in temperature, storms, and barometric pressure shifts can trigger migraine episodes for some people. Sensitivity varies widely by person. Hot, humid, or dry conditions may raise migraine risk ...

Bright idea: Wolfgang Ketterle (in his M.I.T lab) hopes to discover new forms of matter by studying ultracold atoms. Richard Howard Where's the coldest spot in the universe? Not on the moon, where the ...

The server runs as a rootless Podman container managed by a systemd Quadlet. Note: If you are using a raw DHT11 sensor (4-pin) instead of a module (3-pin), you will need a 10kΩ pull-up resistor ...

Abstract: Global warming and the associated increase in heatwaves have made the prevention of heat-related illnesses such as heatstroke a critical global challenge. Monitoring physiological indicators ...

Abstract: A surface plasmon resonance (SPR) sensor based on a polyvinyl alcohol-graphene oxide (PVA-GO) composite film and a polydimethylsiloxane (PDMS) film was proposed for simultaneous measurement ...

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A solar-powered weather station using Raspberry Pi Pico W that measures temperature, humidity, and pressure with a BME280 sensor. Features WiFi data transmission and intelligent power management.