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The WWZMDiB 4 Digit 7 Segment Digital Tube LED Display Board is a compact, red LED module driven by the TM1637 IC, enabling easy control of four 8-segment digits via just two signal lines. It supports 3.3V and 5V power inputs, features 8-level adjustable brightness, and is perfect for Arduino and other microcontroller projects requiring clear numeric or alphanumeric displays. Sold in packs of five, it offers excellent value for hobbyists and professionals alike.
| ASIN | B0BFQNFX6D |
| Brand | WWZMDiB |
| Built-In Media | 1 |
| CPU Model | ARMv7 |
| CPU model | ARMv7 |
| Compatible Devices | Single-board computers and microcontroller boards with GPIO pins |
| Connectivity Technology | GPIO |
| Connectivity technology | GPIO |
| Customer Reviews | 4.6 out of 5 stars 83 Reviews |
| Included components | 1 |
| Manufacturer | WWZMDiB |
| Model Name | RBC-Apt-87 |
| Model name | RBC-Apt-87 |
| Operating System | Linux |
| Operating system | Linux |
| Processor Brand | ARM |
| Processor Count | 1 |
| RAM Memory Technology | DDR3 |
| UPC | 618202520372 |
| Unit Count | 5 Count |
W**N
They work great, an easy to use Arduino lib drives them.
Nice and bright, but not over-driven, good size and a fantastic price. Only minor issue is that they soldered the four-pin connectors on the wrong side, making removal required if you want to actually mount these to a panel. Be sure to bring your desoldering skills.
M**A
The 2 - 7 segment displays are soldered ofset
The 7 segment sections are uneven, numbers look shifted. Terrible quality control.
W**L
Great for the price
Needed something cheap to test a concept. Worked so well, I've ordered 5 more.
T**Y
Great little display, but NOT I2C, and NO decimal points
It has the 4 pin I2C interface, but the chip has no slave addressing, so you can't put more than one display on an I2C channel. It does have a colon, if you want to display time, but NO DECIMALS. All five of my units came up out of the box, the library works great.
K**N
Great value, works well
I got a pack of five for just eight dollars, which is a great price. These things can get really bright, so I use them at the minimum brightness. As others have mentioned, there is one flaw: the headers are soldered at an odd 45 degree angle on the face side, so they will most likely require re-soldering if you want to panel mount them.
Trustpilot
3 days ago
2 weeks ago