ITEM NAME:DC-DC Buck Step Down Converter Module LM2596 Voltage Regulator+LED Voltmet XWS Descriptio n Onboard voltmeter self-calibration method: 1. When the on-board voltmeter displays the output voltage, press and hold the right button for 2 seconds to release, the voltmeter and the output voltage indicator “OUT†flash synchronously. At this time, the output voltage adjustment mode is entered; similarly, the voltmeter is displayed. When inputting the voltage, long press the right button for 2 seconds and then release, the voltmeter and the input voltage indicator “IN†flash synchronously, then enter the input voltage adjustment mode; 2. Tap the right button to increase the voltage by one unit. Tap the left button to lower the voltage by one unit. Since the voltage of one unit is less than 0.1V, you need to press 1-5 times to see the voltmeter. Changed by 0.1V, the specific continuous button press depends on the currently displayed voltage value, the higher the current display voltage, the fewer the number of presses; 3. After the voltage adjustment is completed, press and hold the right button for 2 seconds and then release. At this point, the voltage calibration mode can be exited, and all parameter settings are automatically.1 Step Down Converter Module. We'd like to settle any problem in a friendly manner. The output power is 20W. We want to make sure you are happy with our item. Goods without RMA number will NOT be accepted.
