The **FYA-R032207ZX** is a specific model of an **LED Bargraph Display**, typically manufactured by companies like *FORYARD Photoelectronic*. These components are widely used for visual level indication (such as battery levels, volume meters, or signal strength). --- ### 1. Key Technical Specifications The part number follows a specific nomenclature that defines its physical and electrical characteristics. | Feature | Specification | | :--- | :--- | | **Component Type** | 10-Segment LED Bargraph | | **Light Bar Count** | 10 individual LEDs in a single row | | **Emitted Color** | High Efficiency Red (typically) | | **Configuration** | Standard DIP (Dual In-line Package) | | **Face Color** | Black / Grey (Contrast enhancing) | | **Forward Voltage ($V_f$)** | ~2.0V per segment | | **Forward Current ($I_f$)** | 20mA (Standard operating current) | --- ### 2. Physical Dimensions & Pinout The device usually consists of a rectangular housing with 20 pins (10 for anodes, 10 for cathodes). * **Pin Spacing:** Standard 2.54mm (0.1") pitch. * **Row Spacing:** Standard 7.62mm (0.3"). * **Segment Size:** Individual segments are usually rectangular (e.g., 1.8mm x 5mm). --- ### 3. Circuit Configuration Most FYA series bargraphs are designed with **independent LED segments**. Unlike 7-segment displays which share a common anode or cathode, bargraphs often provide access to both sides of each LED segment. #### Typical Wiring Logic: ```text Pin 1 (Anode LED 1) <---> Pin 20 (Cathode LED 1) Pin 2 (Anode LED 2) <---> Pin 19 (Cathode LED 2) ... Pin 10 (Anode LED 10) <---> Pin 11 (Cathode LED 10) ``` --- ### 4. Implementation Details To use the FYA-R032207ZX in an electronic project, consider the following: 1. **Current Limiting:** Since these are LEDs, you **must** use a resistor in series with each segment to prevent burnout. 2. **Driver ICs:** Often driven by an **LM3914** (Dot/Bar Display Driver) or through a shift register like the **74HC595** when using a microcontroller like Arduino. 3. **Multiplexing:** If you are using multiple bargraphs, they can be multiplexed to save I/O pins. ---