Yp-05 Schematic

: A Mini-USB or Micro-USB port serves as the input, connecting the D+, D-, VCC, and GND lines to the FT232RL.

A current-limiting resistor (typically 1kΩ to 2.2kΩ) connects a status LED to a GPIO pin on the SoC. The schematic dictates its flashing patterns (fast flash for pairing, solid for connected).

Post-inductor, the includes:

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At the front end of the schematic sit the physical connection pins of a Mini USB-B port.

: Provides power and a common ground reference for the connected device. 3. Visual Feedback Indicators

The Raspberry Pi Pico is a popular 3.3V microcontroller. Here is a concrete example of how to connect a YP-05 to it for serial communication: : A Mini-USB or Micro-USB port serves as

The schematic includes two connected to the CBUS0 and CBUS1 pins of the FT232RL.

At the center of the YP-05 schematic sits the FTDI FT232RL IC chip , a highly integrated USB-to-UART bridge. The hardware design maps a physical USB interface directly to a standard asynchronous serial data transmission bus.

The heart of the Yp-05 is often an AS-series or JieLi-branded Bluetooth chip (e.g., AC69 series). Post-inductor, the includes: You might also like *

Most YP-05 boards feature onboard LEDs that blink during data transmission (TX) and reception (RX), providing instant visual feedback for troubleshooting. Pinout Guide

| Pin Number | Signal Name | Description | Typical Function | | :--- | :--- | :--- | :--- | | 1 | GND | Ground | Common ground reference. | | 2 | CTS | Clear to Send | Input for hardware flow control (often unused). | | 3 | VCC | Power Output | Supplies 3.3V or 5V to the target board (jumper selectable). | | 4 | TX | Transmit Data | pin of the target device. | | 5 | RX | Receive Data | Connects to the TX pin of the target device. | | 6 | DTR | Data Terminal Ready | Output used to reset target microcontrollers (e.g., for auto-reset programming). |

When looking at the YP-05, the pins are typically organized in a standard serial connector pattern. Description Data Terminal Ready Used for auto-reset when programming Arduino. RXI Receiver Input Connect to MCU TXD. TXO Transmitter Output Connect to MCU RXD. VCC Power (+5V/3.3V)