DHT Shield for WeMos D1 mini DHT11 Single-bus digital temperature and humidity sensor module sensor

Description

The DHT Shield is a compact, stackable expansion board designed for the WeMos D1 mini (ESP8266) development board, featuring the DHT11 digital temperature and humidity sensor. It plugs directly onto the D1 mini’s headers, eliminating the need for jumper wires and creating a tidy, integrated sensing node for IoT and environmental monitoring projects. The DHT11 sensor provides basic temperature and humidity readings over a single-bus digital interface, with the data pin fixed to D4 (GPIO2) on the D1 mini . While the DHT11 offers lower accuracy and a narrower measurement range compared to the DHT22 variant, it remains a cost-effective choice for hobbyist projects, educational demonstrations, and light commercial applications where precise environmental monitoring is not critical. The shield is fully compatible with the Adafruit DHT library for Arduino and the built-in dht module for MicroPython, making it accessible to users across skill levels.

Features

• Direct Stacking Design: Plugs directly onto the WeMos D1 mini headers without jumper wires, creating a compact and stable assembly .

• DHT11 Sensor Onboard: Provides basic temperature and humidity sensing at an economical price point, suitable for non-critical monitoring applications.

• Fixed D4 (GPIO2) Data Pin: The sensor is hardwired to pin D4, simplifying code configuration and eliminating pin assignment errors .

• Standard Library Compatibility: Works with the Adafruit DHT sensor library for Arduino and the built-in dht module for MicroPython .

• Single-Bus Digital Interface: Requires only one data line for communication, conserving GPIO pins for other shields or peripherals.

• Compact Form Factor: Matches the D1 mini footprint, ideal for space-constrained enclosures and permanent installations.

Technical Specifications