Rasppico altimiter

FLIGHT

FLIGHT is a custom, high-performance rocket flight computer designed around a Raspberry Pi Pico (RP2040) to track, log, and deploy parachutes using a servo.

Disclaimer

The provided code is tested and working with the hardware; however, the servo and arm button controls can be customized to suit your specific needs and are not implimented in the code:)

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Features

• Core Processing: Raspberry Pi Pico running custom data-logging, and control scripts.

• Integrated Sensors (GY-91): Combines an IMU (accelerometer/gyroscope) to measure high-G launch forces (± 16g) and orientation, alongside a precision barometer (BMP280) to calculate real-time altitude changes.

• Recovery: Dedicated PWM outputs to trigger a servo mechanism for physical parachute deployment at apogee or however you wish to use it. not implimented in code, challange for yourself :)

• Power & Protection Circuitry: Integrated TP4056 LiPo charging network backed by a comprehensive safety protection block (DW01A controller + FS8205A dual-MOSFET switch) to safely manage battery current and prevent over-discharge.

• Voltage Regulation (MT3608): A DC-DC boost converter circuit to cleanly step up battery power to a stable $5\text{V}$ line for the onboard servo control.

  

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Mechanical & Layout Design

• Developed on a dual-layer PCB with a massive Ground Plane optimized for low electrical noise and high signal integrity.

• Designed with wide, heavy-current traces ($0.8\text{mm} - 1.0\text{mm}$) on the critical power highway loops (+BATT and -BATT) to safely absorb massive amp spikes when the deployment servos actuate.

• Custom aerospace graphics and visual infographics directly on the silkscreen layer.

DATA

The goal is to log data. FLIGHT saves data in a format that looks like this:

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These numbers by themselves arent that helpfull however with the help of a python program we can graph this data and mark the max altitude and other data points.

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Included in the files is also a 3d printable bracket to mount flight to your rocket, step file for your own needs. M3 countersunk screw holes for mounting to rocket.

More on my YouTube and Stardance Profile:

https://stardance.hackclub.com/projects/18720

https://www.youtube.com/watch?v=rl3e3K6eBTs