curious-nikhil / tejas-rocket-flight-computer

An autonomous Thrust Vector Control rocket with self-landing capability from inexpensive parts of equivalent power of the Apollo era.

Tejas Flight Computer

Software Design

I prefer to sail in a bad ship with a good captain rather than sail in good ship with a bad captain.

TEJAS flight computer is to aid a model rocket with recovery and data logging. It is entirely based on arduino with MPU6050 and BMP280 for orientation and altitude data. The development of TEJAS FC took over 3 months. It was fundamentally designed with no blocking code so as to make it a fault taularent system to some degree.

Challenges:

• Low memory
• Less Processing Power
• Delayed Apogge Detection
• Realtime telemetry

Flowchart

Features of TEJAS 1.0:

• Systems Check on Boot
• Non Blocking Code
• Log Flight Data - Black Box
• Epic Star Wars Launch sound!

TEJAS 2.0 A Open Source Rocket Flight Computer.

Improvments

• 1 - Fault Tolerant Soft Design
• 30 Channel Data logging at 30 Hz
• BT enabled
• Remote Killswitch
• Better Apogee Detection
• Safety Net

tejas-rocket-flight-computer's Issues

No I2C device detected!

Also on Arduino.cc Forum

I have connected as follows -
VCC - 5V (because it's GY 521, it has a vol regulator)
GND - GND
SCL - A5
SDA - A4
AD0 - GND
INT - D2

I am using the official I2C Scanner.
I have followed this tutorial,
Getting started with MPU 6050 sensor

so have installed all required libraries.

What's the error?

No Device found when I run the I2C scanner

Tried to upload the official raw data sketch, but got back 1, -1
Using this example

I have tried these solutions form forums.
MPU 6050 Broken?
Problem Reading data from MPU 6050

This answer in the forum says to add by level shifters for SDA and SCL, but no tutorial, even the official one, doesn't mention this.

Please help!
Much Appreciated! :D

Github
Check Attachments for Photos for sensor connection and Arduino Nano

Error Compiling for Board

Error -

Arduino: 1.8.5 (Windows 10), Board: "Arduino/Genuino Uno"

libraries\MPU6050\I2Cdev.cpp.o (symbol from plugin): In function `I2Cdev::I2Cdev()':

(.text+0x0): multiple definition of `I2Cdev::I2Cdev()'

libraries\I2Cdev\I2Cdev.cpp.o (symbol from plugin):(.text+0x0): first defined here

libraries\MPU6050\I2Cdev.cpp.o (symbol from plugin): In function `I2Cdev::I2Cdev()':

(.text+0x0): multiple definition of `I2Cdev::I2Cdev()'

libraries\I2Cdev\I2Cdev.cpp.o (symbol from plugin):(.text+0x0): first defined here

libraries\MPU6050\I2Cdev.cpp.o (symbol from plugin): In function `I2Cdev::I2Cdev()':

(.text+0x0): multiple definition of `I2Cdev::writeBytes(unsigned char, unsigned char, unsigned char, unsigned char*)'

libraries\I2Cdev\I2Cdev.cpp.o (symbol from plugin):(.text+0x0): first defined here

libraries\MPU6050\I2Cdev.cpp.o (symbol from plugin): In function `I2Cdev::I2Cdev()':

(.text+0x0): multiple definition of `I2Cdev::writeByte(unsigned char, unsigned char, unsigned char)'

libraries\I2Cdev\I2Cdev.cpp.o (symbol from plugin):(.text+0x0): first defined here

libraries\MPU6050\I2Cdev.cpp.o (symbol from plugin): In function `I2Cdev::I2Cdev()':

(.text+0x0): multiple definition of `I2Cdev::writeWords(unsigned char, unsigned char, unsigned char, unsigned int*)'

libraries\I2Cdev\I2Cdev.cpp.o (symbol from plugin):(.text+0x0): first defined here

libraries\MPU6050\I2Cdev.cpp.o (symbol from plugin): In function `I2Cdev::I2Cdev()':

(.text+0x0): multiple definition of `I2Cdev::writeWord(unsigned char, unsigned char, unsigned int)'

libraries\I2Cdev\I2Cdev.cpp.o (symbol from plugin):(.text+0x0): first defined here

libraries\MPU6050\I2Cdev.cpp.o (symbol from plugin): In function `I2Cdev::I2Cdev()':

(.text+0x0): multiple definition of `I2Cdev::readBytes(unsigned char, unsigned char, unsigned char, unsigned char*, unsigned int)'

libraries\I2Cdev\I2Cdev.cpp.o (symbol from plugin):(.text+0x0): first defined here

libraries\MPU6050\I2Cdev.cpp.o (symbol from plugin): In function `I2Cdev::I2Cdev()':

(.text+0x0): multiple definition of `I2Cdev::readByte(unsigned char, unsigned char, unsigned char*, unsigned int)'

libraries\I2Cdev\I2Cdev.cpp.o (symbol from plugin):(.text+0x0): first defined here

libraries\MPU6050\I2Cdev.cpp.o (symbol from plugin): In function `I2Cdev::I2Cdev()':

(.text+0x0): multiple definition of `I2Cdev::readBit(unsigned char, unsigned char, unsigned char, unsigned char*, unsigned int)'

libraries\I2Cdev\I2Cdev.cpp.o (symbol from plugin):(.text+0x0): first defined here

libraries\MPU6050\I2Cdev.cpp.o (symbol from plugin): In function `I2Cdev::I2Cdev()':

(.text+0x0): multiple definition of `I2Cdev::readBits(unsigned char, unsigned char, unsigned char, unsigned char, unsigned char*, unsigned int)'

libraries\I2Cdev\I2Cdev.cpp.o (symbol from plugin):(.text+0x0): first defined here

libraries\MPU6050\I2Cdev.cpp.o (symbol from plugin): In function `I2Cdev::I2Cdev()':

(.text+0x0): multiple definition of `I2Cdev::writeBit(unsigned char, unsigned char, unsigned char, unsigned char)'

libraries\I2Cdev\I2Cdev.cpp.o (symbol from plugin):(.text+0x0): first defined here

libraries\MPU6050\I2Cdev.cpp.o (symbol from plugin): In function `I2Cdev::I2Cdev()':

(.text+0x0): multiple definition of `I2Cdev::readTimeout'

libraries\I2Cdev\I2Cdev.cpp.o (symbol from plugin):(.text+0x0): first defined here

libraries\MPU6050\I2Cdev.cpp.o (symbol from plugin): In function `I2Cdev::I2Cdev()':

(.text+0x0): multiple definition of `I2Cdev::writeBits(unsigned char, unsigned char, unsigned char, unsigned char, unsigned char)'

libraries\I2Cdev\I2Cdev.cpp.o (symbol from plugin):(.text+0x0): first defined here

libraries\MPU6050\I2Cdev.cpp.o (symbol from plugin): In function `I2Cdev::I2Cdev()':

(.text+0x0): multiple definition of `I2Cdev::readWords(unsigned char, unsigned char, unsigned char, unsigned int*, unsigned int)'

libraries\I2Cdev\I2Cdev.cpp.o (symbol from plugin):(.text+0x0): first defined here

libraries\MPU6050\I2Cdev.cpp.o (symbol from plugin): In function `I2Cdev::I2Cdev()':

(.text+0x0): multiple definition of `I2Cdev::readWord(unsigned char, unsigned char, unsigned int*, unsigned int)'

libraries\I2Cdev\I2Cdev.cpp.o (symbol from plugin):(.text+0x0): first defined here

libraries\MPU6050\I2Cdev.cpp.o (symbol from plugin): In function `I2Cdev::I2Cdev()':

(.text+0x0): multiple definition of `I2Cdev::readBitW(unsigned char, unsigned char, unsigned char, unsigned int*, unsigned int)'

libraries\I2Cdev\I2Cdev.cpp.o (symbol from plugin):(.text+0x0): first defined here

libraries\MPU6050\I2Cdev.cpp.o (symbol from plugin): In function `I2Cdev::I2Cdev()':

(.text+0x0): multiple definition of `I2Cdev::readBitsW(unsigned char, unsigned char, unsigned char, unsigned char, unsigned int*, unsigned int)'

libraries\I2Cdev\I2Cdev.cpp.o (symbol from plugin):(.text+0x0): first defined here

libraries\MPU6050\I2Cdev.cpp.o (symbol from plugin): In function `I2Cdev::I2Cdev()':

(.text+0x0): multiple definition of `I2Cdev::writeBitW(unsigned char, unsigned char, unsigned char, unsigned int)'

libraries\I2Cdev\I2Cdev.cpp.o (symbol from plugin):(.text+0x0): first defined here

libraries\MPU6050\I2Cdev.cpp.o (symbol from plugin): In function `I2Cdev::I2Cdev()':

(.text+0x0): multiple definition of `I2Cdev::writeBitsW(unsigned char, unsigned char, unsigned char, unsigned char, unsigned int)'

libraries\I2Cdev\I2Cdev.cpp.o (symbol from plugin):(.text+0x0): first defined here

collect2.exe: error: ld returned 1 exit status

Multiple libraries were found for "I2Cdev.h"
Used: C:\Program Files (x86)\Arduino\libraries\I2Cdev
Not used: C:\Users\mishr\Documents\Arduino\libraries\MPU6050
exit status 1
Error compiling for board Arduino/Genuino Uno.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

Faulty Data Write

out of 5 tests, only few are actually recorded.

Others have faulty data!

Eagle Question

Eagle is not no start painting

BMP readout is false.