365buying HC-SR04 Ultrasonic Distance Module + DHT-11 DHT11 Digital Temperature and Humidity Sensor
1, the module performance is stable, measure distance accurately. SRF05, SRF02 ultrasonic ranging module and abroad comparable. Module precision, blind spots (2cm) super close, stable ranging success of this product according to market powerful! This module is completely Qian Yung GH-311 anti-theft module2 The main technical parameters:1: Voltage: DC5V 2: Static current: less than 2mA3: level output: high-5V 4: level output: the end of 0V5: Sensor angle: not more than 15 degrees 6: Detection distance: 2cm-450cm7: High precision: up to 0.3cmBoard wiring, VCC, trig (control side), echo (receiving end), out (empty feet), GNDNote: TRIP pin internal pull-up 10K resistor TRIP pin is pulled down by the microcontroller IO port, and then give a 10us pulse signal.OUT pin for this module as an anti-theft module when the switch output pin, ranging module without feet!Note: The module should be inserted Fortunately, the circuit board is re-energized, to avoid high malfunction, if you had a re-energized before solve.This module provides a ranging process: C51, PIC18F877 microcontroller Yoshitatsu, three MCU Test Reference.Digital output temperature and humidity sensors, temperature and humidity probe DHT11-DHT series digital temperature and humidity sensor- Full scale calibration, single-wire digital output;- Humidity measuring range: 20% ~ 90% RH (0-50 ℃ temperature compensation);- Temperature measuring range: 0 ~ +50 ℃;- Humidity measurement accuracy:  5.0% RH- Temperature measurement accuracy:  2.0 ℃- Response time: <5s;- Low power consumptionFeaturethe z relative humidity and temperature integrated measurementz full scale calibration without the need for re-calibration can be used interchangeably