Ltd DHT11 Digital Temperature Humidity Sensor Module The Ltd DHT11 Digital Temperature Humidity Sensor Module is a compact, readytouse board that provides digital readings of ambient temperature and relative humidity. Built around the DHT11 sensor, it delivers a simple, reliable interface for a wide range of electronics projects and keeps wiring and software complexity to a minimum. Key benefits Digital output for easy microcontroller integration: the module outputs a single digital signal that carries both temperature and humidity information, reducing sensor noise and interpretation errors. Simple 3pin interface: VCC, GND, and DATA provide straightforward connections to common controllers such as Arduino, ESP8266/ESP32, and Raspberry Pi with appropriate voltage considerations. Wide operating voltage: designed for 3 to 5 V logic, enabling compatibility with a variety of boards and development environments. Builtin pullup and compact footprint: the module typically includes the pullup resistor on the data line and comes on a small board for easy mounting on breadboards or compact enclosures. Compatible with hobbyist and entrylevel projects: provides a costeffective solution for beginners and makers while delivering dependable, repeatable readings. Quick, digital readings: updates occur in roughly 1 to 2 seconds, offering timely data for environmental monitoring and control. Key attributes Functionality: digital temperature and humidity readings from a DHT11 sensor on a dedicated module board. Compatibility: works with microcontrollers and singleboard computers that operate at 3 to 5 V logic; suitable for Arduino, ESP8266, ESP32, Raspberry Pi (with appropriate level considerations). Size: compact sensor module suitable for breadboard use and small enclosures. Material: standard sensor PCB assembly featuring the DHT11 sensor along with supporting components. Performance: temperature range 0 to 50 C, humidity range 20 to 80% RH; accuracy approximately ±2 C for temperature and ±5% RH; resolutions around 1 unit for temperature and 1% RH; typical response time 1–2 seconds. What you get A readytouse DHT11based sensor module in a compact form factor Digital data output compatible with common development platforms Simple threepin interface for fast integration into projects Applications and use cases Home automation and environmental monitoring: integrate into a smart thermostat or climate monitoring system to track indoor conditions and trigger HVAC adjustments. Greenhouses and plant care: monitor ambient temperature and humidity to maintain growing conditions, automate irrigation, and datalog environmental trends. Server room and equipment monitoring: keep an eye on ambient conditions to protect sensitive electronics, enabling alerts when temperature or humidity deviate from set thresholds. Notes The DHT11 sensor provides a practical balance of cost and performance for generalpurpose sensing. For applications requiring higher accuracy or wider ranges, consider higherprecision sensors. Ensure proper voltage and level considerations when connecting to 5 V or 3.3 V microcontrollers, particularly with Raspberry Pi.