A cím elején, valamint az első képen szereplő szín/minta/méret/típus kerül kiszállításra!
A WiFi időzítő óramodul automatikusan beállítja a DIY digitális elektronikus óra vezeték nélküli hálózati időzítését
WiFi timing clock module automatically clocks DIY digital electronic clock wireless network timing
Product features:
1. With voltmeter display, voltmeter error ±0.1V, range of 5 ~ 35V. (Note: if the input voltage is lower than 4.5V, the on-board voltmeter does not work and does not display)
 
2. Large volume 5*5 light touch button to switch the measurement of input or output voltage, and there is an indicator light to show which voltage is being measured. The first time to boot the default digital tube display input voltage, and the input indicator light IN on; Gently touch the button, the digital tube displays the output voltage, and the output indicator light is OUT. And keep the last setting, even if the power is turned on again
3. The voltmeter can be turned off. Long press the switch for more than 1 second and less than 4 seconds. When the voltmeter is off, just press the switch to turn it on.
4. Input and output voltage measurement error is more accurate function, long press the switch for more than 4 seconds, let go of the voltage measurement error is more accurate function, at this time IN light (calibration input end), digital tube flashing display is more positive (factory parameter is 0.0), At this point, short press the key to change the value (the value range is -0.5 ~ 0.5, the unit is V). Positive number means upward calibration, and negative number means downward calibration. After calibration value at the input to adjust good, long press button for more than 2 seconds, entered the output error calibration after let go, this time OUT the light output terminal (calibration), and display the output value of calibration, adjustment method is the same as the input, output in good side after calibration value, long press the button for more than 2 seconds, let go after save the set of values and return to normal display voltage, The set correction value takes effect immediately and is not lost when power is down. (With this function, you can meet the higher accuracy requirements)
5 with terminal, no soldering iron can also be convenient to use, and retain the welding wire wiring points
(The input voltage must be more than 1V higher than the output voltage)
6. The maximum output current can be up to 3A, the recommended working current is about 2A, more than 2A plus heat sink
7. The internal oscillation frequency of 400KHz is adopted. It belongs to the second generation of switching voltage regulator, with low power consumption and high efficiency
 
 
Usage:
1. Accurate measurement error of input and output voltage: Long press the switch more than 4 seconds, let go and then enter the voltage measurement error calibration function, at this point IN the light input end (calibration), the digital tube twinkle showed a positive (the factory parameter is 0.0), the short press button can change this value (numerical range of 0.5 ~ 0.5, the unit is V), said positive upward calibration, calibration down negative said. After calibration value at the input to adjust good, long press button for more than 2 seconds, entered the output error calibration after let go, this time OUT the light output terminal (calibration), and display the output value of calibration, adjustment method is the same as the input, output in good side after calibration value, long press the button for more than 2 seconds, let go after save the set of values and return to normal display voltage, The set correction value takes effect immediately and is not lost when power is down. (With this function, you can meet the higher accuracy requirements)
 
2. Turn off the voltmeter: long press the switch for more than 1 second and less than 4 seconds, then let go and turn it off. When the voltmeter is off, just press the switch to turn it on.
Note:
1. It is suggested that when the power is more than 20W, heat sink should be added to strengthen heat dissipation;
2. Some customers report that the output voltage of the module cannot be adjusted and is always equal to the input voltage. When you encounter this problem, please first counterclockwise rotate the potentiometer more than 10 laps, and then use the module can adjust the voltage normally.
Application cases:
 
 
 
This module can be applied in the output voltage is higher than the input voltage in the field of boost, such as batteries, power transformers, DIY adjustable voltage supply, 24V on-board pen meter this power supply, industrial equipment step-down, 9 to 12V, 12V to 18V, 18V to 24V, etc.
 
 
 
1005003122727587/2 - supersel