Arunava Pal
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  • Bangalore, Karnataka
  • India
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Arunava Pal's Discussions

Tarot 960 Setup

Started May 15 0 Replies

I am looking to build a multicopter based on the Tarot 960 hexa frame. I will be using the PixHawk 2.4.9 as the controller. I want to know whether its possible to fit 18" props on them and if yes…Continue

Question about battery performance

Started this discussion. Last reply by Luc Maximilien May 19. 6 Replies

I am building a hexacopter and will be using PixHawk as the flight controller and a Raspberry Pi for gimbal control as well as image processing. Now I see that I can use a 4s or 6s battery for…Continue

Pixhawk Versions

Started this discussion. Last reply by DavidJames May 8. 11 Replies

I plan to build a hexacopter with the Pixhawk flight controller. I was researching it up and found the Pixhawk 2.1 version which comes with a CUBE and EDISON option. Also online on eBay I found a…Continue

 

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Latest Activity

Luc Maximilien replied to Arunava Pal's discussion Question about battery performance
"Arunava, you are completely wrong. The tension of the battery goes directly to the ESC and the required rpm to prop is not provided by the BEC but from the three fase drive of the ESC to the brushless motor. So the tension you'll need to…"
May 19
Thomas Scherer replied to Arunava Pal's discussion Question about battery performance
"Arunava, for a start simply check whether the BEC you're interested in does support the required input-voltage (usually expressed in xS or for an 6S you want to see something like 26V). Two things to watch out for: the standard power-module…"
May 19
Arunava Pal replied to Arunava Pal's discussion Question about battery performance
"I have not understood what you meant. Could you please elaborate a little. Sorry, I am new to this thing."
May 19
Thomas Scherer replied to Arunava Pal's discussion Question about battery performance
"Arunava, the solution with a resistor would not provide a fixed voltage. You can hence assume that all BEC utilise a step-down converter. Their efficiency is in the 80 ~ 90 % range. I would look at their weight as most important factor. Mind you…"
May 19
Arunava Pal posted a discussion

Tarot 960 Setup

I am looking to build a multicopter based on the Tarot 960 hexa frame. I will be using the PixHawk 2.4.9 as the controller. I want to know whether its possible to fit 18" props on them and if yes what is the motor rating I should look at ? I will be using a 6S battery. I request you to kindly point me to sources of the props and motors if possible.Thank youSee More
May 15
Asim replied to Arunava Pal's discussion Question about battery performance
"V = IR (Voltage = Current * Resistance) "or" I = V/R It doesn't matter you use 4S battery or 6S battery or 8S battery. The current draw from a battery is always going to be dependent on the source which is drawing the current from the…"
May 14
Peter Seddon replied to Arunava Pal's discussion Question about battery performance
"There are linear BEC's that use a voltage regulator (and dissipate the energy in heat) for low current from a 3s battery and switching BEC's for higher voltage/current that are very efficient (90%+).  Use a switching BEC sometimes…"
May 13
Arunava Pal posted a discussion

Question about battery performance

I am building a hexacopter and will be using PixHawk as the flight controller and a Raspberry Pi for gimbal control as well as image processing. Now I see that I can use a 4s or 6s battery for powering my set up and a BEC can be used to convert the 14.8V/22.2V down to 5V for the electronics. Additionally, the ESC will use BEC to provide the correct voltage to obtain the required rpm of the props.Now, from my research on BECs I understand that most use a resistor to reduce the voltage, thereby…See More
May 12

100KM
DavidJames replied to Arunava Pal's discussion Pixhawk Versions
"For high stability you want the autopilot with the lower noise IMU gyros.    The Pixhawk 1 with the lower noise MPU6000 IMU gyros is a better autopilot for hexacopter stability.    The Pixhawk 1 uses the same processor…"
May 8
Andre K. replied to Arunava Pal's discussion Pixhawk Versions
"you wont see difference between Pixhawk or Pixhawk2 performance, you should rather focus on buying properly assembled and high-quality manufactured hardware from reputable vendor. "
May 8
Arunava Pal replied to Arunava Pal's discussion Pixhawk Versions
"So, which one would be preferable for building a hexacopter with high stability?"
May 8
titeuf007 replied to Arunava Pal's discussion Pixhawk Versions
"cuav sell his own version for 140eur"
May 7

100KM
DavidJames replied to Arunava Pal's discussion Pixhawk Versions
"The Pixhawk2.1 is an well designed autopilot.    Not sure why the lower performance IMU was used.   Only one MPU9250 IMU is on the isolated IMU board.   The ICM20600 IMU could have been used and it is slightly…"
May 6

100KM
DavidJames replied to Arunava Pal's discussion Pixhawk Versions
"The Pixhawk1(2.4.x) uses the MPU6000 IMU, a redundant set of gyros(L3GD20 3-axis 16-bit gyroscope) and accelerometers(ST Micro LSM303D 3-axis 14-bit accelerometer / magnetometer).    The MPU6000 IMU gyro noise(0.005 deg/sec/root(Hz)…"
May 6
Andre K. replied to Arunava Pal's discussion Pixhawk Versions
"2.4.9 changed some resistor & capacitor values , unless I am mistaken, trivial. as for 2.1 , yes, more redundancy - but maybe equally important; more different sensors and sampling rates, less chance of aliasing."
May 6
Arunava Pal replied to Arunava Pal's discussion Pixhawk Versions
"Can you please tell me the difference between 2.4.8 and 2.4.9. Also, which is the IMU on 2.1 and that on 2.4.x. Further the 2.1 advertises itself as triple redundant IMU and double barometer. So does that mean that the 2.1 has two seperate barometer…"
May 6

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Please tell us a bit about your UAV interest
Primary interest is in integrating various systems on Multirotors
Hometown:
Bangalore

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