Technical Overview: YL-3 7-Segment Display
The is a single-digit LED-based numeric display module. It features seven LED segments arranged in a figure-eight configuration and an eighth LED for the decimal point.
Each segment can be individually controlled to form numbers or simple characters.
| |
|---|
| 7-segment LED |
| Common Anode or Cathode |
| 1 |
| 1.8V to 2.2V (typical) |
| 10-20mA per segment |
| -40°C to +85°C |
| Red |
| Through-hole |
| |
|---|
| 1 | Segment 'a' |
| 2 | Segment 'b' |
| 3 | Segment 'c' |
| 4 | Segment 'd' |
| 5 | Segment 'e' |
| 6 | Segment 'f' |
| 7 | Segment 'g' |
| 8 | Decimal Point (DP) |
| 9, 10 | Common Anode or Cathode |
The YL-3 7-segment display operates by illuminating specific LED segments to form numbers or basic alphanumeric characters. For example:
To display the digit "1," segments b and c are activated.
To display the digit "8," all segments (a to g) are illuminated.
A current-limiting resistor is required in series with each segment to prevent overcurrent damage, typically with values of 220Ω to 330Ω.
Digital clocks
Timers
Counters
Digital meters (voltage, current, etc.)
DIY and STEM educational projects
The YL-3 display can be driven using the following methods:
Low cost and widely available.
Easy integration with standard circuits.
Bright and legible output.
Limited to numeric or basic alphanumeric displays.
Higher power consumption compared to modern display technologies like LCD or OLED.
Requires additional components (resistors, drivers) for operation.
The YL-3 7-segment display is a versatile, cost-effective solution for numerical data visualization in a wide range of applications. Its simplicity and robust operation make it an ideal choice for hobbyists, educators, and basic industrial uses.
