<div class="detailmodule_html"><div class="detail-desc-decorate-richtext"><p>Features: <br />1. The signal light adopts a mixed color of red, yellow, blue, and green, with rich and eye-catching colors. <br />2. Adopting plug-in/patch technology to meet different welding requirements. <br />3. Support low-level triggering, simplify circuit design and connection. <br />4. Built in current limiting resistor to protect the LED and extend its service life. <br />5. Wide application range, DC3.3~5V is suitable for various control platforms.</p> <p>Parameter: <br />Product Name: Four digit LED Module <br />Material: Double layer PCB board, thickness 1.6mm <br />Working voltage: DC3.3~5V <br />Signal light color: red, yellow, blue, green mixed color <br />PCB board size: 19mmx65mm <br />Process: Plug in/SMT <br />Signal light size: 10mm <br />Interface description: VCC is connected to the positive pole of the power supply, and D1, D2, D3, and D4 are connected to the IO pins of the controller <br />Input method: Low level (or ground) signal, LED lights up <br />Installation holes: 4 fixed installation screw holes with a diameter of 3mm <br />Current limiting resistor: Yes <br />Power indicator light: none <br />Work platform: microcontroller, ARM, etc.</p> <p>Package Include: <br />1X module<br /><br /></p></div></div>