rocket-telemetry-logger-using-raspberry-pi-pico

A rocket telemetry logger using Raspberry Pi Pico, MPU6050, BMP280, and an OLED display. Here’s a comprehensive README.md file for your project, including warnings, connections, and all necessary details:

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Rocket Telemetry Logger Using Raspberry Pi Pico

This project is a rocket telemetry logger that uses a Raspberry Pi Pico to log roll, pitch, and altitude data from an MPU6050 accelerometer/gyroscope and a BMP280 barometric pressure sensor. The data is displayed on an SSD1306 OLED screen and logged to an SD card for further analysis.

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Features

• Logs roll, pitch, and altitude data to an SD card.
• Displays real-time data on an OLED screen.
• Plays a tone sequence on startup and shutdown using a buzzer.
• Uses the IBF method to calculate altitude from barometric pressure.

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Hardware Requirements

• Raspberry Pi Pico
• MPU6050 (Accelerometer/Gyroscope)
• BMP280 (Barometric Pressure Sensor)
• SSD1306 OLED Display (128x64)
• MicroSD Card Module
• Buzzer
• Breadboard and Jumper Wires
• MicroSD Card (formatted to FAT32)

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Software Requirements

• MicroPython firmware for Raspberry Pi Pico
• Libraries:
  • machine (built-in)
  • imu (for MPU6050)
  • bmp280 (for BMP280)
  • sdcard (for SD card)
  • ssd1306 (for OLED display)
  • math, time, os (built-in)

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Installation

1. Flash your Raspberry Pi Pico with MicroPython. Follow the official guide here.
2. Install the required libraries:

   pip install micropython-mpu6050
   pip install micropython-bmp280
   pip install micropython-ssd1306

3. Upload the main.py script to your Raspberry Pi Pico.
4. Connect the hardware as per the wiring diagram (see below).

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Wiring Chart

Raspberry Pi Pico	MPU6050	BMP280	SSD1306	SD Card Module	Buzzer
3V3 (Pin 36)	VCC	VCC	VCC	VCC
GND (Pin 38)	GND	GND	GND	GND	GND
GP0 (Pin 1)		SDA	SDA
GP1 (Pin 2)		SCL	SCL
GP10 (Pin 14)	SCL
GP11 (Pin 15)	SDA
GP12 (Pin 16)				MISO
GP13 (Pin 17)				CS
GP14 (Pin 19)				MOSI
GP15 (Pin 20)					Buzzer

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Usage

1. Power on the Raspberry Pi Pico.
2. The buzzer will play a startup tone sequence.
3. The OLED display will show real-time roll, pitch, and altitude data.
4. Data will be logged to the SD card in the file /sd/sensor_log.txt.
5. Press Ctrl+C to stop the program. The buzzer will play a shutdown tone sequence.

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Warnings

1. Double-Check Wiring: Incorrect wiring can damage your components. Always double-check connections before powering on the circuit.
2. Power Supply: Ensure the Raspberry Pi Pico and all components are powered correctly. Overvoltage can damage the Pico and sensors.
3. SD Card Formatting: The SD card must be formatted to FAT32. Incorrect formatting can cause data logging to fail.
4. BMP280 Calibration: The BMP280 sensor may require calibration for accurate altitude readings. Refer to the datasheet for calibration procedures.
5. MPU6050 Orientation: Ensure the MPU6050 is mounted correctly in your rocket. Incorrect orientation will result in inaccurate roll and pitch calculations.
6. Buzzer Volume: The buzzer can be loud. Use a resistor in series if necessary to reduce the volume.
7. Data Logging: Ensure the SD card has sufficient space for logging. Data loss may occur if the card runs out of space.

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Libraries and Credits

• MPU6050 Library: micropython-mpu6050
• BMP280 Library: micropython-bmp280
• SSD1306 Library: micropython-ssd1306
• SD Card Library: micropython-sdcard

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License This project is licensed under the MIT License. See the LICENSE file for details.

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Contributing Contributions are welcome! Please open an issue or submit a pull request for any improvements.

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Author Aryan Khollam & ChatGPT

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