The term **2ACP-R2** primarily refers to a **FCC ID (Federal Communications Commission Identifier)** associated with electronic components manufactured by **Shenzhen Dehuichuang Technology Co., Ltd.** This identifier is typically found on wireless transmission modules, specifically those used for Remote Control (RC) toys or smart home devices. --- ### 1. Technical Specifications (General) Based on FCC filings, the 2ACP-R2 is a **2.4GHz Wireless Radio Frequency (RF) Module**. Below are the standard technical characteristics for this part: | Feature | Specification | | :--- | :--- | | **Frequency Range** | 2405 MHz – 2475 MHz | | **Modulation Type** | GFSK (Gaussian Frequency Shift Keying) | | **Antenna Type** | PCB Trace Antenna or Wire Antenna | | **Operating Voltage** | 3.0V – 4.5V DC | | **Primary Use** | Remote Control Toys (Cars, Drones), Wireless Controllers | --- ### 2. Core Components The circuit board for a 2ACP-R2 module generally consists of the following electronic parts: 1. **RF IC (Transceiver):** A specialized chip that handles the encoding/decoding of radio signals. 2. **Crystal Oscillator:** Usually a 12MHz or 16MHz crystal that provides the timing clock for the frequency stability. 3. **Matching Network:** A series of inductors and capacitors (LC circuit) that match the impedance between the IC and the antenna for maximum signal strength. 4. **LDO Regulator:** A Low-Dropout regulator to ensure the chip receives a stable voltage despite battery fluctuations. --- ### 3. Application and Functionality The 2ACP-R2 acts as the "brain" of the communication system. It is responsible for: * **Pairing (Binding):** Establishing a secure link between a handheld transmitter and the receiver on the device. * **Signal Processing:** Converting physical movements (joystick tilts) into digital data packets sent over the air. * **Interference Avoidance:** Using specific channels within the 2.4GHz band to avoid interference from Wi-Fi or Bluetooth. --- ### 4. Safety and Compliance The "2ACP" prefix is the Grantee Code, and "R2" is the Equipment Product Code. Having this ID means the part has passed **FCC Part 15** testing, ensuring: * The device does not cause harmful interference. * The device can accept any interference received. * The RF exposure levels are within safe limits for consumer use.