Electronic Clock Voltage Detector Temperature Detection Module LED Digital tube

Product Name: Electronic Clock Voltage Detector Temperature Detection Module LED Digital tube

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Product Feature:
Based on the single chip microcomputer, ultra-small
ultra-thin design(Long: 40
mm wide: 13 mm high: 17 mm)
Support Wide working voltage, can work at 5 v ~ 18 v, and with a voltmeter function, measurable input the size of the voltage.
A total of 4 kinds of display mode, (1) only show time (2) only show the date (3) only show the temperature (4) only show voltage (5) time, temperature alternating display
With the function of temperature display, display area - 20 ~ 59, Minimum resolution of 1 degree. With the temperature error correction, Setting function, set the range - 5 ~ 5.
With the function of 24 hours of timing error correction Settings
Using DS1302 chip timing, bring their own backup CR927 battery, When power lost, time to go on.
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Electrical Characteristics Input voltage: 5V~18V
Input current: 0Ma~40mA
Voltage resolution: 29mV
Temperature resolution: 1
Measure the voltage range: 7V~18V
Measure the temperature resolution: -20~ 59
Voltage regulation accuracy range: - 2.5 V ~ 2.5 V
The temperature precision adjustment range: - 5 ~ 5
?. Functional Description
A Display area
B The temperature sensor
C Function key
1. Press the key1, into the "minutes" Settings interface, and then press the key2, set values.
2. Press the key1, enter the time "the hours" set interface, then press the key2, set values
3. Press the key1, into the voltage regulation set interface, and then press the key2, set values.
4. Press the key1, into the setting of the temperature control interface, and then press the key2, set values.
5. Press key1, back to the clock display interface
6. Press the key2, displays the "day" and "month"
7. Press the key2, display the input voltage
8. Press the key2, display temperature
9. Press the key2, temperature display and switch between the clock display
10. Press the key2, back to the clock display interface

D The power input
E CR927 battery holder
?. Machine Diagram

V. Related Questions
Why sometimes voltage measurement, the measured value is wrong? This is because the test voltage, the input voltage must be greater than or equal to 7 v Why when you measure the voltage and temperature change in value is slow? This is because the measured voltage and temperature is 0.5 S read once, then displayed Why is the measuring temperature, numerical value is not very stable? This is because the resolution of the temperature is 1, the temperature of the small changes may be numerical change together
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