8x Digital Tube+8x Key+8x Double Color LED Module TM1638 For ArduinoProduct Image: Product Description: Features: 1. With isolation groove in control area and load area.2. With power and relay action indication, bright when connect and go off when disconnects.3. When there is a signal in signal input, public side and common side will breakover.4. It can be not only used as a microcontroller development board module, but also as a home appliance control.5. It can not only control the DC or AC signal, but the 220V AC load.6. With a permanent open and close vents contact.7. It is convenient to connect with blue KF301 terminal access control cable. Specification: 1. VCC: Power interface ,5V2. GND: Ground3. IN: Control interface .Drive Current at least 4mA4. COM: Control circuit ground ,Connect to GND5. Size: approx. 41 x 16 x 16mm\/ 1.61 x 0.62 x 0.62”6. Weight: approx. 12g Note: 1. High level flip-flops shows that there are trigger mode of the voltage between the signal input terminal and the ground; That is to say it is a way of short circuit trigger between signal input and VCC positive pole. 2. Low level flip-flops shows that there are voltage for OV trigger mode between the signal input terminal and the ground. In a word, it is a way of short circuit trigger between signal input and GND negative pole.3. Please allow 1-3mm differs due to manual measurement.4. Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding. Package Included: 1 Channel 5V Relay Module Shield FeedbackWarrantyShipmentFeedbackWe appreciate your feedback very much. As it will motivate us do better. If you have any questions with our goods or service, Please kindly contact us firstly before leaving negative feedback. Thank you in advance Warranty1. All merchandise will be carefully test before shipping. We will try our best to avoid any quality problem. 2. We promise warranty for quality in one year and we will repair it free of charge. The returning shipping should be paid by customer. 3. If you are not satisfied with the product, Please contact us. We’ll provide you a satisfying solution.Shipment1.Normmly we will send the goods within 1-3 working days after your payment is verified . 2.Please check if the goods are in good condition and sign before the delivery man leaves.If you find the product is lost or damaged on the way. Please take photo and let the delivery men confirm it. Then we will help you let the shipping company compensate you.<\/p>","protected":false},"featured_media":0,"comment_status":"open","ping_status":"open","template":"","meta":[],"itempress_category":[78],"itempress_tag":[670,69,274,323,671,604],"class_list":["post-21372","itempress_product","type-itempress_product","status-publish","hentry","itempress_category-cat-40004","itempress_tag-30-tage","itempress_tag-digital-color-led","itempress_tag-does-not-apply","itempress_tag-markenlos","itempress_tag-nicht-zutreffend","itempress_tag-unbranded-generic"],"yoast_head":"\n