## Electronic Specifications: FYA-R1005ZX The **FYA-R1005ZX** is an 10-segment LED bar graph display. These components are commonly used in audio equipment (VU meters), battery level indicators, and industrial control panels to represent a linear scale of data. ### 1. General Specifications The "ZX" suffix typically denotes the color configuration and polarity (Common Anode or Common Cathode). For the FYA-R1005 series, the standard specifications are as follows: | Parameter | Value (Typical) | | :--- | :--- | | **Component Type** | 10-Segment LED Bar Graph | | **Number of LEDs** | 10 individual segments | | **Dimensions** | ~25.40mm x 10.10mm | | **Forward Voltage ($V_F$)** | 2.0V - 2.2V (Red/Yellow) / 3.2V - 3.4V (Blue/Green/White) | | **Max Forward Current ($I_F$)** | 20mA - 25mA per segment | | **Power Dissipation** | 60mW - 100mW per segment | | **Operating Temperature** | -40°C to +85°C | --- ### 2. Internal Circuitry and Pinout The device consists of 20 pins (10 on each side). Each segment is an independent LED diode. * **Pin Configuration:** Usually organized in a Dual-In-Line (DIP) package. * **Polarity:** * **Anodes:** Pins 1 through 10. * **Cathodes:** Pins 11 through 20 (mapped to the opposite anode). * **Logic:** Depending on the specific sub-model, it may be a Common Cathode or individual isolated segments. --- ### 3. Application Circuit Example To drive the FYA-R1005ZX with a microcontroller (like an Arduino), you must use current-limiting resistors for every segment to prevent burnout. ```cpp // Example: Basic code to light up segments sequentially int segments[] = {2, 3, 4, 5, 6, 7, 8, 9, 10, 11}; // Digital Pins void setup() { for (int i = 0; i < 10; i++) { pinMode(segments[i], OUTPUT); } } void loop() { for (int i = 0; i < 10; i++) { digitalWrite(segments[i], HIGH); // Turn on segment delay(100); } } ``` --- ### 4. Key Considerations 1. **Current Limiting:** Always use a resistor (typically **220Ω to 470Ω** for a 5V supply) for each segment. Do not connect the segments directly to power. 2. **Multiplexing:** If you are short on GPIO pins, use a shift register (like the **74HC595**) or a dedicated LED driver (like the **LM3914** for analog signals). 3. **Color Codes:** The "R" in the part number often signifies **Red**, but you should verify the specific datasheet if yours emits Green or Yellow, as the forward voltage requirements will change.