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Categories: Sensors
Ultrasonic Sonar Sensor
Rated 1.00 out of 5
(1.00)1 Review
(1) Using IO trigger for at least 10us high level signal,
(2) The Module automatically sends eight 40 kHz and detect whether there is a
pulse signal back.
(3) IF the signal back, through high level , time of high output IO duration is
the time from sending ultrasonic to returning.
Test distance = (high level time×velocity of sound (340M/S) / 2
Categories: Sensors
Soil Moisture Sensor
Rated 0 out of 5
0 Reviews
Operating voltage: 3.3V~5V.
Adjustable sensitivity (shown in blue digital potentiometer adjustment)
Dual output mode,analog output more accurate.
A fixed bolt hole for easy installation.
With power indicator (red) and digital switching output indicator (green).
Having LM393 comparator chip, stable.
Categories: Sensors
DS18B20 Temperature Sensor Module
Rated 0 out of 5
0 Reviews- -55°C to +85°C temperature measurement range with good accuracy
- 1-wire interface to save on MCU pins
- LED to indicate module communications
- 3.3 and 5V compatible
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