4 DIGIT DISPLAY
General Description:
This is a 4-digit red/white/green numeric display having 8 adjustable luminance levels. It is usually a 12-pin module. The TM1637 chip is utilized to scale down the controlling pins. It takes only 2 digital pins of Arduino to control the content, even the luminance of this display.
Working Principle:
A 4-digit display, whether LED or LCD, utilizes segments to represent numbers. Controlled by a microcontroller, LED displays cycle through digits rapidly to create the illusion of simultaneous display, while LCDs update segments independently for each digit. The display driver interprets signals from the microcontroller to activate specific segments, enabling the display of desired numerical information.
Specifications:
- 4-digit red/white/green alpha-numeric display.
- Compatible power supply interface (3.3v/5v).
- Having the 8 adjustable luminance levels to control.
- Current typically takes around 0.2-80mA.
- Having Communication protocol with 2 digital pins to connect.
- Having a special feature such as built-in drivers, multiplexing capability, or color options.
- Mounting holes, pins, or other mechanisms for installation.
- TM1637 (LED driver controller)
Requirements
| S. No. | Component Name | Values |
|---|---|---|
| 1 | TM1637 (LED driver controller) | |
| 2 | 7 SEGMENT 4DIGIT DISPLAY | |
| 3 | Resistors | 10k (2) |
| 4 | Capacitors | 10u, 100n, 1n (2) |
| 5 | Male pin connector | 4 |
Pin configuration:
| S. No. | Pins | Pin Description |
|---|---|---|
| 1 | VCC | 5V |
| 2 | GND | Ground |
| 3 | DIO | Digital pin |
| 4 | CLK | Digital clock pin |
Applications:
- In stopwatches and timers
- Measurement Instruments like, showing readings such as temperature, pressure, voltage, or current in meters and gauges.
- Industrial Control Systems, displaying process variables, setpoints, and alarms in control panels.
- Consumer Electronics applications like microwave ovens, washing machines, or digital scales for displaying numeric information.
