In this video, I'm making a carbon monoxide monitor for my home using an MQ7 carbon monoxide sensor, a DHT11 temperature and humidity sensor, and a NodeMCU microcontroller board. This sensor is ...

Tired of condensation wrecking your shed tools or greenhouse gear? I built a no-frills ESP32 + DHT22 node that wakes every 15 minutes, grabs temp/humidity data, beams it over Wi-Fi, and sleeps—running ...

In our everyday lives, environmental conditions like temperature and humidity can have a big impact, whether it’s in your home, office, greenhouse, or server room. Imagine leaving your room for a few ...

THe RMT perhiperal to talk to the DHT11 sensor The ESP Wifi support to connect to the Internet ESP-IDF Open SSL library to speak HTTP to the ThinkSpeak API The ESP's deep sleep to save power between ...

DHT11 and DHT22 are two popular sensors among microcontroller users, especially the cheap DHT11s. DHT22s cost more but have better data resolution. My codes are based on MonadnockSystems/pxt-dht11 but ...

Managing home and garden systems efficiently is becoming harder due to increased use of electronic devices and the need for better environmental control. Many current systems are not flexible enough ...

Abstract: This paper presents the implementation of an Internet of Things (IoT) application that performs the temperature and humidity sensing using DHT11 sensor on Raspberry Pi, and data transfer to ...

The Raspberry Pi Pico is a microcontroller development board powered by the custom RP2040 chip. With its dual-core ARM Cortex-M0+ processor, extensive GPIO pins, and built-in programmable I/O (PIO), ...