Unlock the cosmos with the perfect camera. Our guide takes you through the top picks as Amazon Prime Day approaches on July 8-11.

Mary helped sick and injured soldiers in many lands. Find out more with BBC Bitesize KS1 History.

An Arduino Uno (CH340G clone) reads temperature and humidity from a DHT11 sensor and computes 10+ environmental metrics (heat index, dew point, enthalpy, humidex, vapor pressures, etc.), outputting ...

Arduino / AVR library for MQ7 carbon monoxide detector. ... CARBON MONOXIDE, ... ) received from esp8266 using MQ-9 MQ-135 DHT11. esp8266 nodemcu qt udp qt5 air-quality dht11 mq135 gas-detector mq9 ...