ESP8266 D1 mini + DHT11 Shield

Stackable D1 Mini Shield Layout: Engineered as a plug-and-play expansion shield designed to stack cleanly onto ESP8266 D1 mini and D1 mini Pro microcontroller boards.

Onboard DHT11 Digital Sensor: Combines a resistive humidity sensor element and NTC thermistor to capture ambient temperature and relative humidity values.

Simplified Single-Pin Data Routing: Connects the digital sensor output directly to GPIO2 (D4) of the D1 mini board, preserving other I/O pins for displays, relays, or additional sensors.

Integrated Logic Pull-Up Resistor: Features an onboard pull-up resistor on the data line to ensure stable single-bus digital communication without external wiring.

Ultra-Compact IoT Footprint: Extremely small form factor makes it ideal for unobtrusive smart home sensors, compact wall nodes, and mini climate loggers.

Board Material: High-grade FR-4 glass-epoxy PCB with blue protective sensor housing and pre-drilled stacking pin header pads.

Technical Specifications:

Compatibility: WeMos / ESP8266 D1 Mini series.

Operating Voltage: 3.3V DC (powered directly via D1 mini rail).

Temperature Measurement Range: 0°C – +50°C (-+ 2°C accuracy).

Humidity Measurement Range: 20% – 90% RH (-+ 5% RH accuracy).

Data Pin Routing: GPIO2 / D4.

Board Color: Blue PCB with Blue Sensor Enclosure.

Usage Advice: Solder the included stackable headers; configure pin D4 (GPIO2) in standard Arduino IDE DHT.h code or ESPHome configuration YAML files.

Maintenance: Ensure airflow to the sensor grill is unimpeded, and keep free from dust, condensation, or harsh chemical fumes.

Essential Wi-Fi Climate Node Expansion: Position as the fastest, easiest solution for building Home Assistant Wi-Fi temperature and humidity sensors powered by ESPHome or Tasmota.

Highlight Stackable Hardware Simplicity: Emphasize how direct board stacking eliminates breadboard jumper wires and drastically reduces project assembly time.

Recommended Cross-Sell Add-ons: Pair with DHT Shield for WeMos D1 mini DHT11 Single-bus digital Temperature & Humidity Sensor, DHT11 Temperature & Humidity Sensor Module, AM2302 (DHT22) Temp & Humidity Sensor, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Temperature Sensor Modules collection page as your primary Wi-Fi-ready D1 Mini climate shield.