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I am interested in building a quadcopter from scratch.
Because I like to err on the side of caution, I'm considering adding "safety cages" around each propeller/rotor, to hopefully prevent (at least minimize) the chance of the spinning rotor blades coming into contact with someone. Without knowing much about the physic... |
I'm planning the design of a wrist for a humanoid robot. I would like to choose a design that is sturdy while allowing for dexterity comparable to a human wrist.
One option that was presented to me was to use a Stewart platform. This setup appears to correctly recreate all possible movements of the human hand. My immed... |
Is it possible to apply kinematic decoupling for a 7 DOF 7R manipulator with spherical wrist? If it is possible, can anyone suggest a reference on how to apply this approach with a redundant manipulator with spherical wrist, or explain why it is not possible?
I'm working with Robotic Toolbox (matlab) and the numeric ... |
I got my hands on a few Tower Pro SG90 9G servos but cannot find their schematics or datasheet anywhere (besides that link).
I have the following concerns:
Looks like they're rated for 4.8V, but will they tolerate a 5V supply?
How do I determine the current they require, in amps, mA, etc.?
There's 3 wires: brown, red ... |
I'm aiming to control a motorized joint at a specific speed. To do this, I'm planning on attaching a rotary encoder to do this.
I'll be controlling the motor with a PID controller. With this PID controller, I need to control the joints based on their velocity.
Since:
speed = distance / time
It would make sense to do s... |
I'm trying to make an hexapod with 18 servo motors and i'm asking how to control them with a Raspberry Pi. (Never used it). I saw lot's of stuff to control 1, but 18, 20...
Currently I'm working on an Arduino Mega, and a SSC-32 board, but I found the result to slow and jerky.
At this end, I want to add a camera and pro... |
I need to get coordinates of the specific points from 2D CAD file and transform them so that I could use them to move the robotic arm to those points. The problem is that I only get x y z coordinates and the robotic arm needs x y z Tx Ty Tz coordinates to move to the certain position.
Any suggestions?
Edited:
My task:... |
I have the following system:
$$\dot{x} = A(t)x+B(t)u$$
$$y = x$$
$A(t)$ and $B(t)$ are actually scalar, but time-dependent. If they would be constant, I could simulate the system in Matlab using:
sys = ss(A,B,C,0);
lsim(sys,u,t,x0);
However, it would be nice to simulate the system with dynamic state and input matrix. T... |
Obviously robotic circuits draw different amounts of power/current. So given the same battery, say, a 9V, then connecting it to 2 different circuits will deplete it at two different rates. Robot/Circuit #1 might drain the battery in 5 minutes. Robot/Circuit #2 might drain the battery in 20 minutes.
What ratings do batt... |
Say I have this solar panel that outputs 6V at 330mA, or ~1.98 Watts. If I connect that to Arduino, which expects a 5V supply at (roughly) 50mA, then the Arduino as a whole requires 5V * .05A = 0.25 Watts to power it. To me, if I understand this correctly, then in perfect weather/sunlight, the solar panel will power Ar... |
I'm looking for my robotics project to draw its power from one of 3 rechargeable batteries; basically whichever has the most "juice" in it. From the initial research I've already done, I believe I could connect each rechargeable battery (probably LiPo) to a diode, and then wire each of the 3 diodes in series.
However, ... |
I have a calibrated stereo camera system that is mounted in a passenger car which means I am able to retrieve a point cloud from my stereo image. However, I need to find how well is the camera aligned with the vehicle - read: if the camera is perfectly facing forwards or not. I guess it will never perfectly face forwar... |
I would like to build a mechanical module that acts like a spring with electronically controllable stiffness (spring rate).
For instance, let's imagine a solid, metallic cube, 0.5 m each side. On the top side of the cube, there is a chair sitting on top of a solid mechanical spring. When you sit on the chair, it would ... |
I would like to build a small two-wheeled robot similar to the one shown here.
In order to keep the robot small, I intend to use two coreless micro motors like the one shown bellow. The power source would be 2 AAA or AA batteries, in order to reach 3 V. These batteries would represent the bulk of the weight of the robo... |
I am combining two position measurements of a ball from two sensors in real time to obtain one triangulated position in x,y,z coordinates. As the data exchange of the measurements carries some latency, the data has to be extrapolated be able to obtain the current position. Due to extrapolation an error appears in the t... |
Can I use Bipolar stepper motor driver to drive Unipolar motor in Unipolar configuration ?
|
I am trying to control the velocity + position of a linear actuator.
At this moment I am able to control the position or the velocity. But I'm trying to control both. What the control has to do: Let the linear actuator drive to a position i.e. 0 to 100 cm with a constant velocity of 1cm/s.
I control the actuator using ... |
I'm working on an robot that would be able to navigate through a maze, avoid obstacles and identify some of the objects (Boxes in which it has to pot the balls) in it. I have a monochromatic bitmap of the maze, that is supposed to be used in the robot navigation.
Up till now, I have converted/read the bitmap image of ... |
I want to design some circuits of my own. My area of expertise is in Computer Science Engineering. I have listed out the components which are essential in the circuit. I want a software which can be used to design and simulate circuits for real time projects. Please suggest me the best among them. Thank you.
@AkhilRaja... |
I have a sensor reduction model which gives me a velocity estimate of a suspension system(velocity 1) .
This suspension system estimate velocity is used to calculate another velocity(velocity 2) via a transfer function/plant model.
Can I use velocity 2 to improve my velocity estimate (velocity 1) through Kalman filteri... |
What are these frequencies used for within the drone technology, and why these values?
35 MHz
433 MHz
868 MHz
2.4 GHz
5.8 GHz
|
I am trying to understand the implementation of Extended Kalman Filter for SLAM using a single, agile RGB camera.
The vector describing the camera pose is
$$
\begin{pmatrix}
r^W \\
q^W \\
V^W \\
\omega^R \\
a^W \\
\alpha^R
\end{pmatrix}
$$
where:
$r^W$ : 3D coordinates of camera w.r.t world
$q^W$ : unit quatern... |
I have a differential drive robot for which I'm building an EKF localization system. I would like to be able to estimate the state of the robot $\left[ x, y, \theta, v, \omega \right]$ where $x, y, \theta$ represent the pose of the robot in global coordinates, and $v, \omega$ are the translational and rotational veloc... |
I have a term project which is controlling a two-link manipulator with harmonic drive installed at each joint.
To control, i used Computed control method to determine the torque needed for each joints based on the formula:
$$\tau_i =M(\theta)(\ddot{\theta_i}+K_d\dot{e}+K_pe)+V+G $$
To calculate the torque that each ... |
I'm attempting to control a small vehicle at relatively slow (.5 m/s - 1 m/s) speeds, but with extreme accuracy (1mm). For the drive system, I'm considering using brushless motors as they have a much greater power / volume ratio than I am able to find with brushed motors, especially at this small size.
I will be using ... |
Aim: To use multi-threading and inter-process communication(IPC) when coding an autonomous robot.
Platform: Embedded Linux (Yocto)
Constraints : Limited CPU power.
We are building an Autonomous Underwater Vehicle, to compete in the RoboSub competition. This is the first time I am doing something like this. I intent to ... |
Has anyone done this with EKF/PID on a small microcontroller? Or know of code snippets to help implementing this?
|
I am working on my first hobby project and I'm not very familiar with sensors yet. I am trying to build a system which detects the presence of a person in a small room with a single entrance/exit door.
The idea is when the first person enters the room, the lights turn on and any following person doesn't affect state of... |
From Introduction to Robotics by J.J. Craig, chapter 2, Page no. 36:
Could anyone explain how that equation was derived/formed? I am stuck on this page due to failing to understand where the equation came from. Thank you.
|
I'm no professional. At 29 I just became seriously interested in robotics a few months ago and have been researching everything I can since. Now that I've come to understand how far robotics have truly come I have a desire to try to make my own.
Granted, I know nothing about coding or programming. I have no idea where ... |
Let's say a PID is implemented and the errors are calculated using the sensor data, but the sensor data lags by certain amount of time because of the overhead. And the lag time is smaller than the sampling period, how well does PID performs? What I am thinking is that PID will calculate errors based on past data, and u... |
This is a question for those of you who have experience using stereo cameras/modules like the ZED, DUO M, Bumblebee cameras, etc. (not TOF cameras). I can't find any sample disparity outputs out there on the internet, and I can't find any information on how they perform. Basically here are a few things I'd like to know... |
I understand the concept of using a pull-up/pull-down resistor when implementing a button/switch with Arduino to avoid a floating state, and in fact I have implemented this quite often.
But I am not too sure if a pull-down resistor is necessary in chip-chip or chip-sensor communication.
I am connecting a coin acceptor ... |
I had a RC Helicopter (with video,picture, and audio taking capabilities) that recently "died" (unrelated to short circuit). The reciever board short circuted, but the board that sent data to micro-sd card and had camera+mic was fine. I can access the data on the micro-sd card through the circuit, with a USB cable. The... |
I recently got libfreenect running on my mac and was able to test out freenect-glpclview which uses some of the 3D capabilities of the depth sensor.
I noticed that the Kinect would only respond / pick up movement that happened within a range of about 3-6 inches in front of the sensor.
I thought this may be because the ... |
I'm developing a project consists of an IMU controlled by Arduino through which you can send via a radio module, the data to the PC of the three Euler angles and raw data from the sensors.
For filtering I used the code made available by SparkFun: Razor AHRS 9 dof
https://github.com/ptrbrtz/razor-9dof-ahrs/tree/master/A... |
Basically I got system with a sensor and an output. I want to apply a digital implemented feedback controller. The problem in this setup is the sensor. The specifications of the module says that the sampletime of the sensor does change in wide range, depending on the usecase; from 1.3 second to 10 second. But it stays ... |
I am building an autonomous underwater robot. It will be used in swimming pools. It should be capable of running in any normal sized pool, not just the pool in which I test. So I cannot rely on a particular design or feature. It has to know it's position in the pool, either with respect to the initial position or with ... |
I know that we can use some algorithms like LQR, MPC, or even PID to make the robot follows the trajectory references. In the simulation like MATLAB, I usually specify the trajectory reference by a function. Let say, given a sequence of points generated by a path planning algorithm, then I want to do a real experiment ... |
I'm studying Introduction to robotic and found there is different equations to determine the position and orientation for the end effector of a robot using DH parameters transformation matrix, they are :
Example: Puma 560, All joints are revolute
Forward Kinematics:
Given :The manipulator geometrical parameters.
Spe... |
I am fairly new to the DH-transformation and I have difficulties to understand how it works. Why are not all coordinates (X+Y+Z) incorporated into the parameters? It seems to me that at least one information is useless/goes to the trash, since there is only a, d (translatory information) and alpha, theta(rotatory infor... |
I recently decided to build a quadricopter from scratch using Arduino and now I'm faced with an orientation estimation problem.
I bought a cheap 10DOF sensor with 3 axis magnetometer, 3 axis accelerometer, 3 axis gyro and a barometer and the complementary filter that I use to get orientation returns usable but noisy va... |
I want to develop an autonomous driving RC car. For detecting obstacles, I plan to mount 3-5 ultrasonic sensors in the front and in the back the car. What is the minimum necessary combined field of view of the sensors so the car never hits an obstacle? I.e. what is the minimum angle of detection of the combined sensor... |
I would like to start experimenting with Robots. Is Lego Mindstorm a good start? Should I consider other platforms?
|
I am trying to use Invensense's MPU9250. I am using provided library to read euler angle. When the IMU rotates about one axis, angles about other two axes change too. What could be potential cause to it?
|
I created a program to simple time base delay (in seconds). I have problem:
How to read a interrupt flag from channel 1 etc.?
When I use if(__HAL_TIM_GET_FLAG(&htim2, TIM_FLAG_CC1) != RESET) an error occurs.
When the interrupt occurred , uC should clear flag and set Blue LED in Discovery Board.
Here is my program:
Main... |
I got an OWI Robotic arm, but was slightly disappointed at it having only horizontal position for gripper. What would be the easiest way to extend with gripper/wrist rotation, i.e. 6th degree of freedom?
|
I've got Robotics API library, a demo program and a robot. I want to develop an app for it. The best solution is offline development on some kind of simulator. I'm completely new in such tasks - is there any IDE for this? Or a way do deliver byte-code to machine? Thanks in advance!
|
Can ESC in quads be programmed in such a way that only one side has throttle and no throttle at all on the other? This would cause the quad to flip I suppose?
With that, is there a way we can program the controller to like trigger a switch when we want the quad to flip? Because I was thinking of doing a waterproof qua... |
Recently I've bought a hexapod kit and 18 TowerPro MG995 servos.
My objective is to apply also the Pi camera, sensors and perhaps a claw...
So I've been researching and I haven't found a clear answer when comes to the servo control board.
Which servo controller board shall I choose to complete my project?
|
I have been researching on a cost-effective way to scan an area on a MAV (exploraton) and later use it for CAD/civil purposes(use the point cloud data for CAD) but the major sensors available have their own problems.
kinect - can't use outside,high computation power
stereo - high computation power,somewhat expensive
li... |
I’m using the BMA020 (from ELV) with my Arduino Mega2560 and trying to read acceleration values that doesn’t confuse me.
First I connected the sensor in SPI-4 mode. Means
CSB <-> PB0 (SS)
SCK <-> PB1 (SCK)
SDI <-> PB2 (MOSI)
SDO <-> PB3 (MISO)
Also GND and UIN are connected with the GND and 5V Pins of the Arduino board... |
I am trying to use 2x UARTs with ChibiOS on the STM32F072RB Nucleo Board.
I initialized UART2 but I am still getting output on UART1 pins, which is totally weird.
#include "ch.h"
#include "hal.h"
/*
* UART driver configuration structure.
*/
static UARTConfig uart_cfg_1 = {
NULL, //txend1,
NULL, //txend... |
How does one implement virtual model (continuous) while control system itself is discrete (PLC)?
I've done this in practice but what about theory, how does one explain this topic to a stranger? (lets say myself)
|
If there are input and the sensor measured outputs. What are the objective methods to compare performance besides looking at inputs and outputs matching or not?
|
I'm a student who is doing electrical and electronics engineering. I'm currently doing my final project which is a quadcopter. One of my objectives in that is to make a Electronic Speed Controller (ESC) for the brushless motors that are being used.
I made a design for the ESC using proteus and I made the PCB also. I h... |
I'm new to the robotics and electronics world, but I'm willing to dive into it. I'm a software developer and I want to create a project that uses GPS and Accelerometer data to show as a layer on Google Maps after transferred to PC.
My doubt is about which controller to get. In my country, there are generic controllers ... |
I have a servo motor with quad optical encoder and I'm trying to control its position and velocity. By controlling both I meant that if I input that the motor should reach 90° at 200rpm then it should. How can I do that? I am using an Arduino Uno. Kindly share some code if possible.
Though I have implemented the PID, ... |
I have some robot software I'm working on (Java on Android) which needs to store a pre-designed map of a playing field to be able to navigate around. The field's not got any fancy 3d structure, the map can be 2d.
I've been trying to find a good format to store the maps in.
I've looked into SVGs and DXFs, but neither on... |
POMDPs extend MDPs by conceiling state and adding an observation model. A POMDP controller processes either
action/observation histories or
a bayesian belief state, computed from the observations (belief-MDP transformation)
In a complex, real-world system like a robot, one usually preprocesses sensory readings using ... |
I'm searching filter to reduce noise and smooth the signal while dead reckoning with an IMU (6dof gyro+accelerometer). What are the differences/advantages/disadvantages of the following filters:
Kalman
Complementary
moving average
Mahony
I applied kalman and complementary filters to an IMU and both of them gives tim... |
I am trying to calibrate a monocular camera using ROS with the help of this website: How to Calibrate a Monocular Camera. When I run rostopic list, I get:
/left
/right
/rosout
/rosout_agg
/usb_cam/image
When I run rosservice list, I get:
/cameracalibrator/get_loggers
/cameracalibrator/set_logger_level
/rosout/get_logg... |
Can someone please provide me with a list of sensors on the create 2? I am hoping to get one soon, but want to be sure it has ultrasonic sensors and not just bump sensors before I do.
|
I have a Robotic arm mounted on a car. There's a camera attached to it. Suppose the camera takes the image of a room, and finds that there's something, say an object, that has to be picked up. Say it's 50 feet away from the robot. My question is that how will the robot reach the object in the first place, and secondly,... |
I want to use IR sensors to detect whether my dustbin is full but I want to protect it from outside dust. I am planning to use the IR sensors on Roomba.
How are they working despite a plastic wall?
Also, what is the range of the sensor?
Can they detect obstacle at about 25 cm?
Why is there a wall between the IR sensor... |
I am trying to run the cameracalibrator.launch using PTAM according to this Camera Calibration tutorial. However, when I do so, I get the following error:
ERROR: cannot launch node of type [ptam/cameracalibrator]: can't locate node [cameracalibrator] in package [ptam]
I source my devel/setup.bash before I run the code... |
I have a mobile robot which is navigating around a room, I already have the map of the room. I am using the navigation_stack of ROS. I am using rotary encoders for odometry. I am fusing the data from Rotary encoders and IMU using robot_pose_ekf. I am using amcl for localization and move_base for planning.
Now, I have ... |
What will be the specifications of motors and propellers that can approx produce a thrust of 100kg in a quadcopter?
We are planning to lift a total weight of 50 Kg along with the 20 Kg weight of the quadcopter itself. So at 50% throttle the total thrust produced by it should be 150 Kg with a per motor total thrust of 3... |
I would like to find an electronic actuator that mimics the characteristics of a hydraulic actuator, in that the position remains fixed without power drain when the actuator is not moving. Which actuators exist that match these criteria?
|
I'm sorry for this question that might not fit in here however, I would like to give it a shot. I've chosen this stack since the question is somehow related to mobile robots. I've came across a paper in Mobile Robot Localization that has cited the following reference,
C. Brown, H. Durrant-Whyte, J. Leonard, B. Rao, a... |
From a technical standpoint what are the differences between the Kinect v1 and the Kinect v2 ?
I'm interested both in the hardware equipment and the format of the data.
|
As I'm advancing in my project I realized I need better hardware, particularly for video input and processing.
From an intuitive feeling sounds like stereo cameras offers a more powerful and flexible solution, on the other hand the Kinect looks like a great out-of-the-box solution for depth sensing and it also takes aw... |
I plan to use the icreate as a platform to carry a tablet, or notebook PC and want to have power for some time so I need more than the 3000 mAh battery. I want all to be powered from same battery system and use same charging source. So I need info as to how to wire in additional 14.4V NiMH batteries in parallel with th... |
What's least complex way to reduce power from a 10V 1.5A battery to 6V 1.5A
Thank you!
|
I am working on a project that requires motion detection and positioning. I've worked substantially with a camera but the issue with this is that I need something sleek, small and not heavy at all. Cameras also tend to rely on luminosity and they don't work well in poorly lit spaces.
I need someone who's worked on some... |
I have a 2 DOF Robot Arm with a camera attached to it. It takes an Image and there's an object in that image, say a glass. Of course, in order to move the arm to the required position to grasp the object, I have to solve the inverse kinematic equations. In order to solve them, I need the x and y, the coordinates where ... |
In the scope of my PhD, I would like to build an automated microscopy set-up that should take images of a sample of 2cm by 2cm. This should be done by taking pictures of 500 micrometers by 500 micrometers.
Therefore I need to design an XY-stage moving my sample over the optical setup. I would use a Raspberry Pi to stee... |
Do you use simulators for developing your robot algorithms or do you test directly in your robot?
I would like to get introduced into the simulators world, but don't know from where to start... can you recommend me one?
Regards
|
A robotic arm should pick a cuboid up of a table, rotate it around its vertical axis and put it down on all possible positions. How many degrees of freedom are at least necessary?
(All coordinates, that should be reached by the robotic arm, are in its workspace. It is not allowed to put the cuboid down and pick it up, ... |
I measure the voltage ESC drawing while increasing the dc motor speed. Multimeter shows that as long as the speed increases the voltage value decreases. Can anybody explain why this is happening?
|
my robotic project is running at every 1ms and the processes are taking about 0.9ms. I am running PID so my max clock rate is 1kHz. About half of the processing time are taken by SPI peripherals, IMU and encoders. Is there any recommendation on how I can run faster PID sampling rate?
|
For my particle filter, I decided to try using the low variance resampling algorithm as suggested in Probabilistic Robotics. The algorithm implements systematic resampling while still considering relative particle weights. I implemented the algorithm in Matlab, almost word-for-word from the text:
function [state] = low... |
I need to make this construction (door is closed by default, door is opened to the top). This is the scheme:
Red rectangle on the picture is the aperture, blue rectangle is the door (weight is about 0.5 kg), which moves top when door need to be opened. Green stripe on the picture is the rail for the door.
Which electr... |
I'm looking for an algorithm for formationing multiple robots in 2D simulation. Can you suggest resources about this topic. Also I need suggestions and comments about these topics:
Can I recruit algorithm from optimization algorithms like particle or ant?
Is there any way except "go to goal" for each robot
Is patter f... |
For a project I am building a Tele-Op Robot using the IRobot's Roomba as my drivetrain. In order for my robot to work, I need an extra castor. IRobot provides .stl and .stp files for me to use and I used them and printed the files. (The file I printed was from this link: Create® 2 Bin Modification.
This file is a new p... |
I've been working lately on SLAM algorithms implementing extended kalman filtering to brush up on some localisation techniques and I have been thinking forward to the hardware side of things. Are there embedded chips such a microcontroller that are optimised for large linear algebra operations? What sort of embedded op... |
Reaction Control Systems (RCS) on these vehicles are implemented by using small rocket thrusters. For me it looks like these thrusters work in some kind of "pulse" mode. And I can't understand - do they use some optimal control to calculate in advance the required impulse to reach the new desired state of the system OR... |
I'm learning to make a 3D simulation in MATLAB based on a model designed from SOLIDWORKS.
There is an example: SIMULINK+SOLIDWORKS
The way used here is:
Create a 3D model in SOLIDWORKS
Create a xml file applicable to import to MATLAB via SimMechanics Link
Import the model to MATLAB/SIMULINK. A simulink system is cre... |
How do I find out around which axis the coordinate system has to rotate, if the rotation matrix is given?
$ {^{a}R_{b} } $ = $ \left(\begin{matrix} 0 & 1 & 0 \\ -1 & 0 & 0 \\ 0 & 0 & 1 \\\end{matrix}\right)$
$ {^{a}R_{c} } $ = $ \left(\begin{matrix} 0 & 0 & 1 \\ 1 & 0 & 0 \\ 0 & 1 & 0 \\\end{matrix}\right)$
For $ {^{... |
I am starting to develop robotics project which involves simulation (and maybe real world programs) of soft-body dynamics (for food processing) and clothes/garment handling (for textile industry or home service robots). It is known that soft-body dynamics and garment handling are two less explored areas of robotics and... |
Vision is important part of robotics and frequently it is unavoidable component of control loop. E.g. many clothes/garment handling algorithms rely on visual cues in deciding how to proceed. The question is - does simulation environments (Gazebo or some others) allow one to design world with robot and garment and simul... |
I'd like to study the capabilities of industrial robot arms. For example, to answer the question how does price vary with precision, speed, reach and strength?
Is there a database of industrial robot arms including information like the price, precision, speed, reach and strength of each model?
|
Is there any way of estimation the battery life from pwm outputs which goes to motors in microcontroller level. I'm planning to estimate path range with this. Microcontroller, sensor and other electronic device should be neglected.
|
I am building a laser gun for pentathlon targets (also doing one).
I would like to know how build a part of the gun and if I can count on a steady laser if it is attached to a motor.
The question is about the laser. I want it maybe attached to a small-(servo)motor to try to implement some cheat just for fun. Assuming t... |
I'm working on an robot that would be able to navigate through a maze, avoid obstacles and identify some of the objects in it. I have a monochromatic bitmap of the maze, that is supposed to be used in the robot navigation.
Up till now I have processed the bitmap image, and converted it into an adjacency list. I will no... |
We can easily compute the rigid robot kinematics and dynamics. There is many resources, simulators and modelling tools about it. But i couldnt find any of these for elastic robots. Can you suggest resources and modelling tools?
|
I am still in high school and am a part of the robotics club that competes in the FTC (First Tech Challenge). I am just about finishing my first Calculus class (Calc 1), and would be ecstatic to be able to apply this someway in a real world example such as robotics. [Besides PID. It seems like only approximations anyw... |
Until now I have been programming the robot using Java on KUKA's IDE "KUKA Sunrise.Workbench", what I want to do is control the robot arm via my C++.Net application (I would use a camera or Kinect to get commands).
I'm reading the documents provided by Kuka, but as I'm a bit in hurry, I want to understand how a C++ cl... |
I am specifically interested in DH parameters versus other representations in terms of kinematic calibration. The best (clearest) source of information I could find on kinematic calibration is in the book "Robotics: Modelling, Planning and Control" by Bruno Siciliano, Lorenzo Sciavicco, Luigi Villani, Giuseppe Oriolo,... |
I have a Blade 180QX quadrotor / quadcopter and I had to move a red wire shoved under the circuit board when I fixed a broken power wire. Now the red wire shown out straight from the circuit board is not in the right configuration - or at least as it was. If I understood what it was for I might know how to place it. Is... |
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