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The WWZMDiB 4 Digit 7 Segment Digital Tube LED Display Board is a compact, red LED module powered by the TM1637 driver IC. It supports 3.3V and 5V operation, uses only two signal lines for MCU control, and offers 8-level adjustable brightness. Ideal for Arduino and other microcontroller projects, it delivers clear numeric and limited alphanumeric displays with minimal wiring complexity.
| ASIN | B0BFQNFX6D |
| Best Sellers Rank | #36,326 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in LED Segment Displays |
| Brand | WWZMDiB |
| Built-In Media | 1 |
| CPU Model | ARMv7 |
| Compatible Devices | Single-board computers and microcontroller boards with GPIO pins |
| Connectivity Technology | GPIO |
| Customer Reviews | 4.6 out of 5 stars 87 Reviews |
| Included Components | 1 |
| Manufacturer | WWZMDiB |
| Model Name | RBC-Apt-87 |
| Number of Items | 2 |
| Operating System | Linux |
| Processor Brand | ARM |
| Processor Count | 1 |
| RAM Memory Technology | DDR3 |
| UPC | 618202520372 |
| Warranty Description | 1 |
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.
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.
M**E
All of my units are functional
Appearance, size & packaging: All 5 modules are built on a single, separatable PCB. These are delivered in a 3.3 x 4.8in cardboard box. Module pins are not foam protected, but none of mine are damaged. The CL3642AH display is approx. 9/16 x 19/16in (14 x 30mm) and the individual digits are 0.36in height [approx. 3/16 x 3/8in (5 x 9.5mm)]. The CL3642BS display has a colon (":") separator, but no dot separator: don't buy this 1 if your application requires the decimal point. Testing: I was able to display all targeted characters (digits 0-9 plus A-F plus "minus"). Total current draw for the module ranged 4 to 59 mA (lowest to highest brightness, respectively). Details: (a) I used Arduino+A.Orpaz AVR library. (b) One detail tripped me up: make certain to setBrightness before displaying characters, else the display is blank.
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.
B**Z
Good Quality
Work Great.. easy to program using a esp32
M**K
Look good.
Require a little effort but look good.
M**N
Thank you for going above and beyond!
Look absolutely gorgeous and soldering is spot on. I really appreciate the packaging to. Thank you for going above and beyond.
C**A
Value for the money
Works as expected.
W**L
Great for the price
Needed something cheap to test a concept. Worked so well, I've ordered 5 more.
Trustpilot
2 weeks ago
3 weeks ago