Description
Description:
A single module can drive an 8 x 8 common cathode dot matrix
With input and output interfaces, supporting multiple module cascading
Working voltage: 5V
With 4 fixing screw holes, aperture 3mm
Size: Approx. 32 x 32 x 1.3mm
Specification:
MAX7219 is an integrated serial input/output common-cathode display driver that connects a microprocessor and an 8-bit digital 7-segment digital LED display. It can also be connected to a bargraph display or 64 individual LEDs. It includes an on-chip B-type BCD encoder, a multi-scan circuit, a segment word driver, and an 8*8 static RAM to store each data. Only one external register is used to set the segment current for each LED.
A convenient four-wire serial interface can be connected to a general-purpose microprocessor. Each data can be addressed without updating all the display when updating. The MAX7219 also allows the user to choose to encode or not encode each data.
The entire device includes a 150μA low-power shutdown mode, analog and digital brightness control, a scan limit register that allows the user to display 1-8 bits of data, and a detection mode that lets all the LEDs glow.
Only need 3 IO ports to drive a dot matrix! There is no flicker in the dot matrix display! Support cascade!
Wiring Method:
The left side of the module is the input port and the right side is the output port
When you control a single module, you only need to connect the input port to the CPU
When multiple modules are cascaded, the input of the first module is connected to the CPU, the output is connected to the input of the second module, the output of the second module is connected to the input of the third module, and so on.
Take 51 microcontroller as an example:
VCC → 5V
GND → GND
DIN → P2.0
CS → P2.1
CLK → P2.2
Package Includes:
1 x MAX7219 Dot Matrix Module
1 x MCU Control LED Display Module
2 x Long Pin Header
2 x Short Pin Header
1 x Wire
Shipping Policy
Shipping Policy
Thank you for shopping at Uniqkart! We are committed to delivering your orders in a timely and efficient manner. Please read our shipping policy below to understand our procedures and timelines.
1. Shipping Destinations
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We currently ship to addresses within India.
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We do not ship to P.O. Boxes, remote areas, or locations with restricted courier access. If your address falls under these categories, please contact our support team for assistance before placing your order.
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We partner with trusted courier services such as FedEx, Delhivery, and Blue Dart to ensure reliable delivery.
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Shipping method depends on destination, weight, and size of items. You’ll see available options and estimated delivery times during checkout.
3. Shipping Costs
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We offer free shipping on orders above ₹200. For orders below ₹200, standard shipping charges will apply.
4. Order Processing and Delivery Times
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Handling Time: Orders are typically processed within 2–4 business days.
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Transit Time: Once shipped, delivery within India usually takes 14–16 business days.
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Estimated Delivery Time: The total estimated time from order confirmation to delivery is 18–20 business days.
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Order Cut-off Time: Orders placed after 5:00 PM IST will be processed on the next business day.
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For delivery issues, contact us at:
📧 support@uniqkart.in
📞 +91 94887 43306
We’ll coordinate with carriers to resolve issues quickly.
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We’ll work with the carrier to arrange replacements or refunds.
8. Contact Us
For any questions:
📧 support@uniqkart.in
📞 +91 94887 43306
Business Hours:
Monday - Friday: 10:00 AM - 5:00 PM (IST)
Saturday: 10:00 AM - 4:00 PM (IST)
Sunday: Closed
Address:
63/15, Vasantha Road, Anna Nagar, Dharapuram, Tiruppur, Tamil Nadu, 638656
Return & Refund
Return and Refund Policy
At Uniqkart, we are committed to ensuring your complete satisfaction with your purchase. If you are not entirely satisfied with your order, we're here to help. Please read our policy below regarding returns and refunds.
1. Eligibility for Returns
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Returns accepted within 14 days of receiving the order.
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Items must be unused, unworn, and in original packaging with tags intact.
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Proof of purchase required (order number or receipt).
2. Non-Returnable Items
Returns are not accepted for:
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Customized or personalized products
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Clearance items marked as non-returnable
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Intimate products due to hygiene reasons
3. Initiating a Return
Steps to initiate a return:
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Email us at support@uniqkart.in within 14 days of receiving your order. Include your order number, item(s), and reason.
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Follow the return instructions provided by our support team.
Return Shipping:
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Customer Responsibility: Customers bear return shipping costs unless the item is damaged, defective, or incorrect.
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Uniqkart Responsibility: If the item is damaged or incorrect, we cover return shipping and provide a prepaid label or arrange pickup.
We recommend using a trackable service and insuring the shipment. We are not responsible for lost or damaged returns in transit.
4. Inspection and Processing
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Items will be inspected upon receipt for eligibility.
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Status of return (approved/rejected) will be notified via email.
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Approved returns will be processed for a refund or exchange.
5. Refunds
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Refunds are issued to the original payment method.
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Allow 7–10 business days after approval for processing.
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Original shipping charges are non-refundable, unless the item was faulty or incorrect.
6. Exchanges (If Applicable)
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Exchanges are accepted for all products, whether due to damage, defect, incorrect item, or if you want a different size or color.
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Please contact our support team for assistance with your exchange request.
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Exchanges are subject to product availability.
7. Damaged or Defective Items
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Email us within 24-48 hours of delivery with order number, issue details, and clear photos.
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We’ll offer a replacement, full refund, or appropriate resolution.
8. Cancellations
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Orders can be cancelled before shipment.
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Once shipped, cancellation is not possible; please use the return process instead.
9. Contact Us
For any questions or concerns, reach out to us:
📧 Email: support@uniqkart.in
📞 Phone: +91 94887 43306
Business Hours:
Monday - Friday: 10:00 AM - 5:00 PM (IST)
Saturday: 10:00 AM - 4:00 PM (IST)
Sunday: Closed
Address:
63/15, Vasantha Road, Anna Nagar, Dharapuram, Tiruppur, Tamil Nadu, 638656
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