Project Overview

The "Advanced 8-Channel RC Transmitter and Receiver with STM32F103C8T6" is a versatile and feature-rich remote control system designed by Mr. Ahsan. This project serves as an innovative solution for enthusiasts in various RC hobbies, including RC boats, drones, and airplanes. It provides precise control, multiple functionalities, and customizable settings to enhance the user's RC experience.

Key Features

1. Trim Function:Users can fine-tune their RC device's performance through trim adjustments for precise control.

2. Fail-Safe Mechanism:Ensures the safety of the RC device by automatically returning it to a predefined state in case of signal loss.

3. Voltage Alarm:Monitors battery voltage and alerts users when it reaches a critical level, preventing unexpected shutdowns.

4. **Channel Reverse and Forward Function:** Allows users to customize channel direction, catering to different RC models.

5. PWM or PPM Output: Provides flexibility by supporting both PWM and PPM output modes for compatibility with various devices.

6. Yaw Setting: Enables users to adjust yaw control for optimized performance in specific applications.

7. Mode Selection: Offers distinct modes for RC boats, drones, and airplanes, ensuring the transmitter's adaptability to different vehicles.

8. User Interface:Incorporates a 0.96" OLED screen and a rotary encoder for convenient setup and parameter adjustments, displayed in real-time on the OLED.

9. Additional Components:Utilizes 8050 transistors, buzzers, resistors, capacitors, and a rotary encoder to enhance functionality and user experience.

SCHEMATIC AND PCB LAYOUT.

Technical Details

Communication Overview

The communication system relies on NRF24L01 modules and STM32F103C8T6 microcontrollers.

Transmitter Communication

1. User Inputs: User manipulates control sticks and other inputs, processed by STM32F103C8T6.

2. Data Encoding: Inputs are encoded digitally for wireless transmission.

3. Wireless Transmission NRF24L01 module sends data via 2.4GHz radio frequency.

4. Data Packaging: Data is organized into packets with channel values, settings, etc.

Receiver Communication

1. Signal Reception: NRF24L01 module receives transmitted signal.

2. Data Decoding: STM32F103C8T6 decodes data into control inputs, settings, etc.

3. Servo Control: STM32F103C8T6 converts data to PWM signals for servo control.

4. Servo Response: Servo motors adjust positions based on PWM signals.

Fail-Safe Mechanism

In case of signal loss, a predefined signal pattern is sent by the transmitter to ensure device safety.

Designer Information

This project was designed by Mr. Ahsan, a passionate DIY enthusiast and creator. Mr. Ahsan has a YouTube channel called "DIY TECH DEEPLY," where he shares his innovative projects, tutorials, and insights into the world of DIY electronics and technology.

CHANNEL LINK:https://www.youtube.com/watch?v=jVVPKjaBPH8&t=639s