LED
LCD
Product Overview
This upgraded version of the standard LM2596 module includes a 3-digit LED display that shows either the input or output voltage. It is the perfect power solution for hobbyists who want to monitor their battery levels or output stability at a glance. The module also features a button to toggle the display on/off or switch between reading the input and output voltage.
Arduino & Power Wiring
IN+: Input Positive (4.5V to 40V)IN-: Input Negative (GND)
OUT+: Output Positive (1.25V to 37V)
OUT-: Output Negative (GND)
Left Button: Toggles the voltmeter display between Input (In LED lit) and Output (Out LED lit).
Adjustment: Turn the blue potentiometer to set your target voltage.
IN+: Input Positive (4.5V to 40V)Technical Specifications
| Feature | Specification |
| Input Voltage | 4.5V to 40V |
| Output Voltage | 1.25V to 37V (Adjustable) |
| Output Current | 2A (Continuous), 3A (Max with Heat Sink) |
| Voltmeter Accuracy | $\pm 0.1V$ |
| Voltmeter Range | 0V to 40V |
| Switching Frequency | 150 KHz |
| Efficiency | Up to 92% |
Key Features
Self-Calibrating Voltmeter: High-accuracy display for convenient monitoring without extra tools.
Power-Off Memory: The display remembers your last setting (Input or Output mode).
Display Control: The voltmeter can be turned off to save power by holding the button.
Over-Heat Protection: Automatic thermal shutdown and short-circuit protection.
