Gikfun USB Nano V3.0 ATmega328 CH340G 5V 16M Micro-Controller Board for Arduino (Pack of 3pcs) EK1620x3

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ParametersÃ¯Å¡ Module Properties: non-isolated step-up module (BOOST) Input voltage :DC 3-34V Input current : 3A (MAX) Output voltage: DC 4-35V (continuously adjustable) Output Current : 2.5A (MAX) Display Color: Red Voltage Meter Error: Â± 0.1V Voltmeter Measure Range:0~40V (for measurement accurately, please ensure that the input voltage is more than 3V) Wiring: IN+: Input Positive IN-: Input Negative Out+: Output Positive Out-: Output Negative Potentiometer adjustment: Please connect the module correctly at first to input power supply of 3-34V, later you should adjust the potentiometer with one multimeter monitoring output voltage Package include: 1x LM2577 Boost Converter Voltmeter Display

Input voltage: DC3-34V;Output voltage: DC 4-35V(Continuously adjustable);Max input current:2.5A;Max output current:3A.
With the function of voltmeter, can display the voltage of both input and output, high accuracy(+/-0.1V), wide measuring range(DC 0-40V).
Short press the button can switch the voltage display between input and output, red LED lights on when testing input voltage and green LED lights on when testing output voltage.
Press and hold the button 3sec can shut down the LED display, press it again can open it.
With wiring terminals, can be conveniently used without soldering, and the module also have solder wire connection point.

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