Waterproof Digital Thermal Probe Sensor DS18B20

 

This module is an advanced version which has temperature compensation and the accuracy of the highest module now can clean out treasure, absolute stable, economical, practical.

20 * 45 mm module circuit 15 mm thick 

1, stable performance, measure distance accurate:
Can SRF05 and abroad, such as SRF02 ultrasonic ranging module comparable. Module high precision, blind area (2 cm) super close, stable is the product range to the market success of powerful according to! 

2, main technical parameters:
1) the use of voltage: DC5V
2) the static current: less than 2 mA
3) level output: high 5 V
4) level output: bottom 0 V
5) induction Angle: no more than 15 degrees
6) detection range: 2 cm-450 cm
7) high precision: up to 3 mm 

3. The wiring way:
VCC, trig (control terminals), echo (receiver), GND

4. Method of use:
A control mouth hair a 10 US above the high level, can wait for high level output receiver mouth. A has an output can open timer time, when the mouth into a low power can be read at ordinary times timer values, where you for the ranging time, can calculate the distance. This will continue the cycle, can reach you move measurement value ~ ~

5. Module working principle:
(1) the IO trigger ranging, to at least 10 us high level signal;
(2) module automatically send eight 40 KHZ of square wave, automatic testing if it has any signals return;
(3) a signal to return to, through the IO output top level, the duration of the high level is from the launch ultrasonic returned to time. Test distance = (high level time * sound velocity (340 M/S)) / 2;
US-100 ultrasonic ranging module can realize 2 cm ~ 4.5 m non-contact ranging function, with a 2.4 ~ 5.5 V of wide voltage input range, static power consumption less than 2 mA, bring their own temperature sensor calibration on the ranging results, and has GPIO, serial ports and so on many kinds of communication mode, inside take watchdog, stable and reliable.

The main technical parameters

• Electrical parameters US-100 Ultrasonic ranging module
• Working voltage DC 2.4V~5.5V
• Static current 2mA
• Working temperature -20~+70degrees
• Output way Level or UART (jumper cap choice)
• Induction Angle Less than 15 degrees
• Detection range 2cm-450cm
• Detecting precision 0.3cm+1%
• UART mode serial interface configuration 9600 baud rate, starting a one, and stop bits a, data bits, eight, and white parity checking, no flow control.