Questions tagged [sensor]
For questions about drone sensors, sensor uses and any issues encountered with using specific sensors
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DJI Mini 3 Pro EXIF azimuth is ~11 degrees west of true north
I have a Mini 3 Pro and a number of Python scripts that will map image locations from drone images. This all happens using the on-board GNSS unit and the values written to the the image EXIF data.
On ...
- 200
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Why is my drone oscillating on position hold after I move it a few meters?
I have built a 5 inch quadcopter using inav 5, mateksys f722, and M8q-5883 gps. When I enable position hold with gps, the drone is relatively stable, but when I move it a few meters forward, it will ...
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Connecting a RS232 sensor to the Pixhawk
I have an airspeed sensor that outputs a RS232 signal. This is the sensor: https://www.aeroprobe.com/micro-air-data-system/. I want to connect this sensor to the Pixhawk in order to use the data for ...
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How to add custom betaflight code to obtain data from I2C device and pass to OSD?
I successfully obtained data from my I2C device in Arduino:
...
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Using BMP280 as an altimeter for CanSat
Situation:
Me and my student team want to use a BMP280 air pressure sensor connected to an Arduino Nano to measure the altitude of a CanSat.
A CanSat is a coca cola can-shaped and can-sized aerial ...
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Is it possible to attach I2C and USB based sensors to the flight controller and receive some outputs via telemetry?
Readily available flight controllers have pins/pads available usually for UART ports where you can attach various modules like ESC, RX, VTX, OSD etc.
I wanted to know if it is similarly possible to ...
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How to implement sensor fusion with IMU and GPS
I have a 9-axis IMU (MPU9250) and a GPS module and I'm considering using other sensors later,...
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Estimate position of a balloon attached to a quadcopter
I'm trying to measure/estimate the position of a balloon, for that I need the two angles shown in the picture below. enter image description here
The idea is to place a helium filled balloon on a ...
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What are controllers of Parrot AR drone 2?
I have a few questions about Parrot AR drone 2. Here is the official website
Q1:What are the controllers for the AR drone 2? Is there a position controller (GPS), velocity controller (accelerometer), ...
- 61
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Is roll rate, pitch rate and yaw rate same as gyro data along y-axis, x-axis and z-axis
As per the title, I want to understand if the roll rate/pitch rate/yaw rate are same as the data obtained from mpu9250 gyro sensor along y-axis, x-axis and z-axis?
If not then how to calculate roll ...
- 451
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Is there an open source video processing/sensor based follow me technology?
I'm constructing a multirotor drone and want to introduce follow me feature, are there any open source solutions I can use for that purpose?
Please note that I want the tracking algorithm to be ...
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What is the frame system defined for Orientations comptutation using Quaternions [Madgwick filter/ Mahony filter]?
I am working with MPU9250 and I have implemented attitude & heading reference system based on Madgwick/Mahony filter. I capture the raw data [accel, gyro, mag] and pass to the Madgwick filter in ...
- 451
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Using MPL3115A2 to get relative altitude of a drone
I am using MPL3115A2 Altimeter to get the accurate relative altitude of my drone. I am getting an error of 30-60 cm without even moving the sensor. I have used several averaging and filtering methods ...
Jai Jitendra Jain
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What does the full scale range in a IMU MPU9250 datasheet signify?
I have MPU9250 IMU, which I am working on to get orientations from the sensor output data. While exploring the MPU9250 (also other sensor such as BNO055) datasheet I came across the full scale range ...
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Difference between a 3 and 6 axis gyro
When shopping for drones, I see a 3 and 6 axis gyro available, what is the difference between the two? Does one have a advantage when flying over another?
user149
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Optical sensors vs Ultrasonic sensors on a drone
Are there any performance differences between optical sensors and ultrasonic sensors? How do I make the right choice for my drone? I will be using them in a object detection system for collision ...
user306
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What are the usual engineering considerations for a UAV current sensor?
Current sensors are a popular feature in both multicopter and fixed wing flight control stacks.
Most of them are analog, i.e. convert the current into a voltage using a small-value shunt resistor (...
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