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Confusion regarding working procedure of AI robots? [closed]

Conventional robots are programmed using fixed and rule based approach like if-else programming in microcontroller boards like Arduino, and they can work even without internet. But what actually ...
DSP_CS's user avatar
  • 1,219
0 votes
0 answers
40 views

Controll PD with Python

I'm applying a Proportional-Derivative controller to control my robot, but I don't understand why the robot's position doesn't reach the desired position. Can someone help me understand what the error ...
monika's user avatar
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0 votes
1 answer
21 views

Can I link two stepper controllers and motors of different types to the same step signal outputs from a control board?

I need stepper motors of different amps and weights to mirror each other to +/- 5% total precision. Can there be problems if I use the same step-signal pins from a control board towards two different ...
bandybabboon's user avatar
1 vote
1 answer
34 views

Motor for lightweight high torque application (Jumping Robot)

I am in the process of designing a jumping robot, im trying to keep the weight below 2 kg, The robot works by compressing two helical springs with a linear actuator. The maximum force reaches 350N. I ...
Hassie Jayasekara's user avatar
0 votes
1 answer
89 views

24 VDC system and metal ground

I've built a rubber tracked mobile robot and it has a metal chassis. I use a 24 VDC 30 Ah battery to power a system which includes two DC motors, motor controllers, an industrial PC and some sensors. ...
Marcus Barnet's user avatar
0 votes
2 answers
102 views

Making a timer on delay and off delay without microcontroller

I am new and want to make a compact circuit without a microcontroller. The idea is when you push the button/switch, it will delay the timer for at least 6 hours. After that, it will activate the motor ...
Spacing99's user avatar
2 votes
2 answers
303 views

Help choosing motor for a fruit cutting machine

I want assistance in determining an electric motor type suited to building a device for palm oil harvesting. Here is an example of one working palm cutting machine. This machine works similar to a ...
visahl's user avatar
  • 31
2 votes
3 answers
88 views

Using alkaline C cells to drive a pair of solenoids

I am working on a walking robot for my class in mechanical engineering. I have two 12 VDC solenoids that need to be actuated. Their resistance is 4 ohm so basically will require 6 amps @ 12V for the ...
remusconnor's user avatar
0 votes
0 answers
49 views

Using both safety PLC and safety relay

I am in the process of designing a robotic cell. This contains a safety door and several e-stops. I want to use the safety PLC from siemens S7-1200F. I need to have two roller tracks with 8 24V motors ...
user357063's user avatar
0 votes
0 answers
28 views

Simulating Gyroscope with ARW, BI, and Spectral Density Using Physical IMU Data

I'm currently working on a state estimation project that relies on IMU data. While I have access to a physical IMU, I'd like to simulate gyroscope data with specific parameters, including Angle Random ...
user3106378's user avatar
1 vote
1 answer
244 views

Dynamic model of three dof to state space?

I´m trying to convert a 3 dof robot manipulator from dynamic model to state space. I saw a video where explains how to convert a 2 dof robot manipulator, but I don´t know how to apply it to a 3 dof ...
Rodrigo Barbosa's user avatar
1 vote
1 answer
68 views

Will running four motors (two high speed and two high torque) get the robot rolling? [closed]

I've been building a 2WD robot for 3 months now and been switching the motors frequently and been running into the same issue - low torque. I had these low RPM, high torque motors around and thought: ...
8TILMATE's user avatar
0 votes
0 answers
85 views

Connecting computer and motor driver grounds

I am designing a robotic system and seem to be having a ground issue whilst working with motor drivers. To improve system stability and for EMI concerns, I have split the power and signal using an ...
Tom Kagan's user avatar
1 vote
0 answers
110 views

Coding Help: Blender to Arduino over Serial Port

Working on a connecting an Arduino Uno to Blender 3.4 over the serial port. In the Blender file, I have an object named "motor1", a simple cube that can be manually rotated in the 3d ...
JakeNEPA's user avatar
0 votes
1 answer
30 views

Module for "Force Control" [closed]

I am looking for a device (e.g motor) for an Arduino or Raspberry which can change its force. You can imagine it as a servo but instead of controlling it through positioning it is controlled with &...
Curious99's user avatar
  • 113
1 vote
2 answers
332 views

Can a BLDC motor still provide max torque for holding position when I run it at 24 V instead of 48 V?

I would like to do a Leg Robot project. I have an AK80-64 BLDC motor from T-motor. The specification says it can be operated at 24 and 48 V. Can the BLDC motor still provide max. torque for holding ...
RunJ's user avatar
  • 11
1 vote
3 answers
117 views

Detection device for robots [closed]

I am an electrical engineering student and I have been in robotics since 2019. I want to create my own robots and I need advise on a detection device. Context : The match happens on a 1m×2m table, 2 ...
GabrielT's user avatar
  • 121
-1 votes
1 answer
284 views

Maximum weight for robot arm - MG996R [closed]

I want to build a robot arm (see here) to move a dumbbell of 2 kg (roughly 2.2 lbs). However, since I have no background in engineering, I have no idea how to calculate / find out if the servos used (...
juliusphysics's user avatar
1 vote
1 answer
256 views

Best way to provide 5V at a high current to power 12+ servos using battery power

I am currently in the process of building a quadruped robot that uses 12 SG90 servos, controlled by a PCA9685, for motion. I've found many examples of quadrupeds, but barely any mention of their power ...
helo's user avatar
  • 11
1 vote
0 answers
405 views

Can i use ESP32 3.3V pwm on MG90D Servo

Ok so, im building the eletronical part of a sumo robot for my university team, and i came to a barrier, on past researchs we came to the conclusion that using MG90D servo is the best option for us (...
Willian Ibanez Mesquita's user avatar
-1 votes
1 answer
54 views

How to do sound localisation for an Inmoov Robot

I have to do sound localisation for a humanoid robot. This is my final year project given by our sir but I have no idea how to do it can anyone help me
Vinay's user avatar
  • 1
-2 votes
1 answer
93 views

MOSFET motor driver burns up with battery [closed]

I am working on a robot. I have used a MOSFET bridge to drive the motors. The problem is that when I test the motor drive using a power supply the circuit works fine without any problem but when I ...
Aamir Akhtar's user avatar
0 votes
1 answer
57 views

Sensor to detect collision or intervention

I am currently working on a project (robotic arm) where I need to detect human collision with the robot. I need a sensor that should be flexible, detect human intervention in the workspace of the ...
rockstar's user avatar
0 votes
1 answer
104 views

Power supplying in robotics

I am experiencing an unstable power situation in my robot. My computer (Jetson AGX) and the lights (48 neopixel leds) are powered by the same source (https://www.mini-box.com/DCDC-NUC), which is in ...
Per Edwardsson's user avatar
1 vote
1 answer
2k views

How to calculate the rated speed of a DC motor given the no load speed, rated current and rated torque?

I am working on a mobile robotics project and I'm beginning to learn about DC motors. I am looking at a particular geared motor, and the given parameters are the no load speed, the rated torque, rated ...
afc2020's user avatar
  • 21
0 votes
1 answer
276 views

How to limit current output to 1A from 12V lithium ion battery

We are making a simple bot that uses a 12 V lithium ion battery,which is connected to a power module, for 5V and 3.3 V output. Now I connect a TB6612FNG motor driver with ESP32. The ESP32 is powered ...
Gautam Agrawal's user avatar
1 vote
1 answer
3k views

MG996R that can rotate all the way around, but behaves like a normal servo

So I bought an MG996r online to replace a dead one in my robot dog, and I always test my new servos by hand and then by using sweep. When testing this one by hand, I found that I could turn it all the ...
Proxy303's user avatar
  • 170
1 vote
1 answer
451 views

Why can't the HC-SR04 sensor detect objects that are very close to it?

I am following this worksheet and I am struggling to understand the following piece of code: ...
a_sid's user avatar
  • 141
0 votes
3 answers
80 views

How to get started knowing how to power my robot? [closed]

I have been a software engineer for many years writing code for websites/servers etc. I recently became intrigued with the idea of building land drones. I have decided to build a small tank that has a ...
Dan's user avatar
  • 101
1 vote
2 answers
147 views

Resources on multi-MCU architecture?

I am designing a 6-axis robot arm, and I just finished tuning the control algorithm for a single BLDC using a STM32 MCU. The next step led me to wonder how such system usually works: I don't think my ...
Roy Li's user avatar
  • 71
1 vote
1 answer
367 views

PCB pancake slip ring brushes [closed]

I am designing a mechanical attitude indicator for the avionics simulator. I need a pancake slip ring, that drives servo (max 500mA at 5V) and some backlight. My idea is to use a gold-plated PCB and ...
FeroFixxer's user avatar
0 votes
1 answer
215 views

I have a 5 volt converter but I also need 3.3 volts, what should I do?

Goal is to get 5V and 3.3 V output by the use of a buck/boost converter. Important is to use a converter instead of an LDO for heat reasons. I want to draw minimum above 0.8A, preferably 1-1.2A at the ...
Miro's user avatar
  • 101
3 votes
2 answers
225 views

What type of electronics is typically used to interface between PCs and custom hardware? [closed]

I have tried to make this question acceptable for StackExchange, I am not looking for buying advice, just either examples of hardware that could have been used or the name of types of devices I should ...
B.Baker's user avatar
  • 95
0 votes
0 answers
69 views

PID Control: Is adding a delay before the next loop a good idea?

I am implementing PID control in c++ to make a differential drive robot turn an accurate number of degrees, but I am having many issues. Exiting control loop early due to fast loop runtime If the ...
droiddoes9's user avatar
0 votes
0 answers
254 views

How to run encoder motor with motor driver and raspberry pi

I am kinda new to the Robotics field and Raspberry Pi and has worked on very basic projects with the hardware so far. My current task is to run the "Encoder Motor" with a motor driver(...
Jaskirat Singh's user avatar
0 votes
0 answers
63 views

Axis of Euler rotation matrix

I'm searching the way to measure rotational displacement by using Euler rotational matrix. And I could find various information about it. Then I've found something wrong with reference axis. In the ...
ssabassaba's user avatar
1 vote
1 answer
366 views

Drive a DC motor with a WS2811 chip

I'm building a robot that needs a lot of small hobby motors (or similar) to operate in sync. I was looking for ways to have as many of them controlled by a single source of logic as I am not sure I ...
ColumnB's user avatar
  • 11
0 votes
1 answer
56 views

Controlling esp2886 via bluetooth... help!

I am trying to control my esp2866 via bluetooth so I bought a DSD TECH SH-M08 Bluetooth 4.0 BLE Module. In a tutorial I saw they paired it to the computer and then under 'More Bluetooth Options', in ...
user255652's user avatar
1 vote
3 answers
477 views

Finding distance travelled by differential drive robot

In a two wheeled differential drive robot, with wheel radius 7cm. bot starts from rest and the two motors are randomly actuated. Left wheel has rotated by 270 degrees, and the right wheel rotates by ...
Rajakr's user avatar
  • 111
4 votes
1 answer
92 views

Mechanisms of a mobile robot

what is the need of the upper wheels in the figure shown?
Millie's user avatar
  • 141
2 votes
0 answers
95 views

Accurate localization through GPS, IMU and odometry

I am trying to localize a robot with an error <1m. I have XA1110 GPS but haven't tested it in an open area (due to the ongoing disaster) hence I am unaware of its practically achievable accuracy. I ...
Jugal Mistry's user avatar
1 vote
2 answers
426 views

5V 4A power supply for simple circuit

I am a 14 year old electronics noob. I am mostly a programmer and mechanical designer. I have been working on a robot which needs around 4 amps of current. I am thinking about using a simple 5V 4A AC ...
TheRealJoe's user avatar
0 votes
1 answer
36 views

Bluetooth not connecting error

I am making and robotic arm by using arduino and hc - 05 module and controlling that arm using mobile application now problem what i am facing is the mobile app dose not connect to bluetooth device ...
Muhammed's user avatar
0 votes
1 answer
255 views

Problem with the pulses given by the motor encoder

I'm experimenting with differential encoder and I have some questions now. First specs: motor reduction is 14:1 on official page, encoder count 512 pulses per revolution so that mean that on one full ...
macola995's user avatar
  • 109
0 votes
2 answers
101 views

Design decisions about computational hardware for small mechatronics project [closed]

I've recently started learning electronics/mechatronics. As part of my studies, I've been reading about devices such as RaspberryPi, Arduino, etc, and I'm interested in experimenting with such devices....
The Pointer's user avatar
  • 1,281
0 votes
2 answers
313 views

Making a super efficient line following robot that runs on super capacitors for as long as possible [closed]

I'm trying to make a line following robot that runs for at least 20 seconds on a 2F super capacitor (5x 2.7V 10F super capacitors in series with protection circuits.) So I'm working with 13.5V and 182 ...
Tausif 's user avatar
1 vote
2 answers
322 views

How to get a constant 5 V power supply when using the same power supply for motors and micro controllers

I have made a WiFi controlled car using NodeMCU. It works fine if I connect the NodeMCU to a separate 5 V supply. If I use the same power supply for both the motors and the NodeMCU, it resets ...
Debarshi Das's user avatar
0 votes
2 answers
690 views

What is the best way to solder a large flat SMD shunt resistor so as to minimize joint resistance?

I have a BLDC motor controller that uses a high side 0.001 ohm current sense resistor (CSS2H-5930K-1L00F) and a MAX40201FAUA (50 V/V) to measure the current during motor operation via a Teensy 3.6 ADC....
JDD's user avatar
  • 71
0 votes
1 answer
86 views

RC servo suitable for robot arm or not

As you see many product and open source using RC servo to build small robot arm. This question might simple but I think it important to someone that want to build robot arm and decide which type of ...
M lab's user avatar
  • 1,424
1 vote
1 answer
950 views

Brushless motor control poisition (design own PID?)

I got a few motor similar to the image below from a old scanner and I want to apply them in a robotic arm to move the arm because BLDC motors have a large torque I then control with arduino. Well, in ...
Bruno Pimenta's user avatar

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