Key Display For AVR Arduino New 8-Bit Digital LED Tube 8-Bit TM1638 Module
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Key Display For AVR Arduino The TM1638 Button Digital LED Display Module is used in chip TM1638, a collection of these three common MCU peripheral circuit, the biggest feature just takes three microcontroller like Arduino IO port to drive, do not need to scan display and key scanning microcontroller intervention, only need to read the relevant register send display data or test button, save MCU resources. This module gathers more than three common scm peripheral circuits. The advantage is only three io ports will be occupied when it drives. Scm doesn't need to work for scanning display and key scanning. It only need to read the relevant register to send display data or test button so it save MCU resources effectively. Keys are sensitive and display effectively. Features: TM1638 digital tube drive chip to drive a common cathode LED digital tube. Can be extended to 3 * 8 buttons, led digital tube and can be controlled separately. Support 8 brightness control, led digital tube and use the same brightness. Support cascading up to 6 of the same module. 8 LED, 8-bit digital tube and 8 buttons, common cathode LED digital tube, such as STC microcontroller can be directly connected. Applications: DIY Electronics Projects: Ideal for hobbyists creating custom electronics projects that require a display and user input. Arduino and AVR Projects: Frequently used in projects involving Arduino and AVR microcontrollers for displaying numerical data and receiving user input. Home Automation Systems: This can be integrated into home automation systems to display status information and receive commands. Consumer Electronics: Used in the front panels of devices like DVD players and home theater systems for display and control purposes. Educational Tools: Useful in educational settings for teaching students about microcontroller programming and interfacing. Prototyping: Handy for prototyping new devices that need a simple interface for testing and development.
- Integrated TM1638 driver chip with built-in display and key scanning
- 8-digit 7-segment common cathode LED display
- 8 programmable indicator LEDs and 8-key matrix input
- Only 3 digital I/O pins required for full control
- Supports daisy-chaining up to 6 modules
- 8-level brightness control
- Compatible with Arduino, AVR, ESP32, and other microcontrollers
- No external drivers or resistors required
- On-chip key scanning eliminates MCU polling
- Low CPU overhead with register-based control
- Compact PCB design for easy integration
- Ideal for prototyping and production use
| Rated Voltage | DC 12V |
|---|---|
| Voltage Range | DC 7.0V-13.6V |
| Input Current | 0.24A |
| Dimension (LxWxH)mm | 76 x 50 x 10mm |
| Weight (gm) | 25 |
Is the TM1638 module compatible with Arduino Uno?
Yes, it works seamlessly with Arduino Uno using only 3 digital pins for full control.
Can multiple TM1638 modules be connected together?
Yes, up to 6 modules can be cascaded using the same 3 control lines.
What type of LED display does this module use?
It uses a common cathode 8-digit 7-segment LED tube with 8 individual indicator LEDs.
Does it require external resistors or drivers?
No, the TM1638 chip handles all driving internally—just connect power and data lines.
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About Key Display For AVR Arduino New 8-Bit Digital LED Tube 8-Bit TM1638 Module by Iotcart
Buy TM1638 LED display module with 8-digit 7-segment tube & 8 keys. Compatible with Arduino, AVR. Price in India.
Categorised under: 74HC IC Series› Display Module› 8051, ARM, PIC, AVR