The **TG-B43-R** is a specific Bluetooth Low Energy (BLE) module, typically manufactured by **Taidoc Technology**. It is designed for medical devices and IoT applications that require low power consumption and reliable data transmission. --- ### 1. Key Electronic Specifications The module is built around a System-on-Chip (SoC) architecture. Below are the primary technical characteristics: | Feature | Specification | | :--- | :--- | | **Wireless Protocol** | Bluetooth Low Energy (BLE) 4.x / 5.0 | | **Frequency Band** | 2.4 GHz ISM Band (2.402GHz - 2.480GHz) | | **Operating Voltage** | 1.8V to 3.6V DC | | **Interface Support** | UART, SPI, I2C, GPIO | | **Antenna Type** | Integrated PCB Antenna (or U.FL connector version) | | **Modulation** | GFSK (Gaussian Frequency Shift Keying) | --- ### 2. Core Components and Architecture The internal circuitry of the TG-B43-R consists of several critical subsystems: * **RF Transceiver:** Manages the radio frequency signals, ensuring stable transmission within a range of approximately 10 to 30 meters (depending on environment). * **Microcontroller (MCU):** An integrated ARM Cortex-based processor that handles the Bluetooth stack and application code. * **Power Management Unit (PMU):** Optimizes battery life, allowing the module to enter "Deep Sleep" or "Hibernate" modes when not transmitting data. * **Flash Memory:** Integrated memory used to store the firmware and unique Bluetooth device address (MAC ID). --- ### 3. Pin Configuration and I/O The module usually utilizes a surface-mount design (LGA or Castellation pins) with the following pin groups: 1. **Power Pins:** `VCC` (Positive supply) and `GND` (Ground). 2. **Communication Pins:** `TX/RX` for UART serial communication with the host microcontroller. 3. **Control Pins:** `RESET` (to reboot the module) and `WAKEUP` (to bring the module out of low-power mode). 4. **Status Pins:** Often includes an LED driver pin to indicate pairing status. --- ### 4. Common Applications Due to its compact size and low power draw, the TG-B43-R is found in: * **Medical Devices:** Blood glucose meters, blood pressure monitors, and pulse oximeters. * **Wearables:** Health trackers that sync data to mobile apps. * **Industrial IoT:** Wireless sensors for monitoring environmental conditions.