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Questions tagged [servo]

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A kind of motor with automatic feedback, usually for positioning, such as a hobby RC servo motor.

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I'm developing a small DIY project, but I'm still quite a beginner. I've heard that it's better to distribute the GND from the power supply in a star pattern. As you can see in my diagram, I'm doing ...
Luca Hofmann's user avatar
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I am having an issue with a servo motor controlled by a NodeMCU and switched via an N-MOSFET (IRLB8721) on a breadboard. The servo is powered by 8.4V (from 12V/5A PSU via step-down). MOSFET gate ...
Luca Hofmann's user avatar
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So first of all, I don't have a background in electrical engineering, I got handed a project where having some automation would save so much of my time so now I am learning electronics from scratch. I ...
Stephanie Dang's user avatar
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I'm trying to switch power to a servo using a 2N2222 transistor. My wiring diagram is as follows. I drew it up to resemble the physical connections on my breadboard (because I'm worried that I may be ...
kovac's user avatar
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I've been driving a 24V robotics application with brushless motors, that I've measured to use about 2A usually, 5A peak as far as my slow multimeter shows. Now I've exchanged the LiIon battery with 5A ...
dronus's user avatar
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I'm trying to switch power to a servo using a IRLZ44N MOSFET. I'm using a ATmega328P mcu running at 3.3V and a 8MHz crystal. The servo is rated 4.8-6V and draws up to 200mA to move. Following is the ...
kovac's user avatar
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I'm working with a 1kW Delta A2 servo drive and motor. Its datasheet specifies that the servo drive should be installed above the EMI filter. When installing the servo drive and EMI Filter, the servo ...
Pana's user avatar
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I want to use a 12V 7Ah battery to power some DC motors. That part works but I also want to use it to to power two servo motors but I am a bit worried about breaking them by applying too much power. ...
user3553471's user avatar
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I want to use a Feetech High-torque Metal Gear Servo with a raspberry pico. Just to get started I have the simplest code: ...
user3553471's user avatar
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I am using RMD actuators, specifically the RMD-X8 Pro 1:9 model, for a robotic arm project. According to the documentation, the CAN bus supports 500 kbps and 1 Mbps communication speeds. However, when ...
RoM's user avatar
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I have a SG90 servo connected to an Arduino Uno. PB1 is connected to the orange (signal) wire of the servo. 5V and GND pins on the Arduino are connected to the red and brown wires of the servo. I'm ...
kovac's user avatar
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My previous question on the topic was clearly improperly formatted and unhelpful. Problem: I'd like to use an Arduino, a separate 5V power supply, and 2 MOSFETs to drive a servo. The Arduino would ...
Taylor Spaulding's user avatar
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I want to control three servo motors and two BLDC motors using an Arduino and an HC-05 Bluetooth module. Using a 9V battery to power the Arduino. Connected Arduino's 5v output to Vcc of the HC-05 ...
Abhilash's user avatar
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I was making a robotic arm with 2 SG90s and 2 MG996Rs, but i realized they weren't able to pick up 10% torque in their rating at 5 Volts. So i connected my Raspberry Pi 5 to 1 MG90 Servo with the ...
Aditya Jain's user avatar
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2 answers
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I'm trying to control a servo using two buttons connected to a atmega328p. The two buttons place the servo horn in two different positions. The servo is a SG90 micro servo. I'm trying to use ...
kovac's user avatar
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From my understanding servo motors are pretty noisy and you shouldn't connect power to other components through a servo motor. I was wondering if this layout is OK or the servo motors will still ...
Robert's user avatar
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I am trying to design an analog PID, in this circuit, the integrator has an Integral clear button. After some reading I understand (correct me if I am wrong) that when the op-amp saturates, or ...
DarkBulle's user avatar
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Specifications of pmsm servo motor:300W 200VAC Encoder:2000 ppr I am tasked with fabricating a servo drive for the above said motor,which is used to drive rotary table(1:50 gear reduction).Indexing ...
dhuwarkesh's user avatar
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I am new to this topic, but I am trying to understand how to use Bode plots to optimize my PID loop parameters for PDH locking a laser to an ultrastable cavity. For simplicity (and based on what I ...
Alex Marshall's user avatar
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I am making a tennis playing robot. There is a tennis racquet mounted on a robotic arm. I want suggestion on what kind of motor will better solve the purpose. The arm consist of multiple motors but ...
Pratham's user avatar
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1 answer
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I am using a 9g servo motor and have connected two 100nF ceramic capacitors: one between 5V and GND for power supply decoupling, and one between the signal (SIG) and GND for signal integrity. ...
Robert's user avatar
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1 answer
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I plan to connect three 9g servos to the STM32F405RGT6 (datasheet) and need to select the appropriate GPIO pins for PWM output. Can I use pins PA8, PA9, and PA10 for this purpose, as these pins are ...
Robert's user avatar
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I'm trying this circuit, and variations of it, to control a mini servo motor. The circuit uses two 555 timers to generate a constant-frequency PWM signal with adjustable duty cycle to control the ...
matteo's user avatar
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3 answers
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I was searching for high power/torque density of BLDC motors, but when I compare the commercially accessible ones to ultra high end motors, they always make the commercial ones bite the dust. For ...
Fulano's user avatar
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I've seen a very similar question to this but want some extra pair of eyes on my circuit here. The issue I've encountered is on startup of this script every so often the servos will randomly move to ...
msalaz03's user avatar
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I am working with an old motor with EnDAT encoder, no documents are available. The protocol is implemented on FPGA and can be changed, as needed. Somehow the encoder sends 13 bits. Other servo drive ...
TQQQ's user avatar
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The purpose of my circuit is to control(current) a servo motor with the 4096 steps of the DAC MCP4725. Currently this circut is not turning on the NPN Darlington, I don't know why that. The DAC is ...
johnnytolengo's user avatar
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Background: I'm trying to setup a servo motor 1171MG with a 555 timer and finetune the position with a potentiometer as it depends on various project aspects. The circuit is driven by a small board &...
Squiffy's user avatar
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1 answer
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I have a continuous rotation SG90. I am trying to implement software PWM (because the orangepi sbc I am using doesn't support hardware PWM yet). I got a bunch of electronics from a friend so I don't ...
Yuki.kuroshita's user avatar
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5 votes
2 answers
756 views

If I have two servos rated as 12VDC with a maximum draw of 2A. Can these be reliably powered in series using a 24VDC supply? My question is how stable would the voltage be expected to be given the ...
RapidOvertake's user avatar
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I was doing a Raspberry Pi project controlling a BLDC motor with an BLHeli32 ESC. I sent servo pulses with maximum width 2 ms and minimum width 1 ms. The frequency I sent these pulses at is 50 Hz. ...
Tsz Kit Koon's user avatar
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I've designed a simple robot with 2 active wheels and 4 omni wheels and I'm trying to figure out the motion controls. I'm using 8300 RPM motors (https://uk.rs-online.com/web/p/dc-motors/3213192) which ...
OM222O's user avatar
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1 answer
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How can I control the torque of a DC servo? Servo model: DS51150-180 https://i.ebayimg.com/images/g/pEkAAOSwmFNl4NkA/s-l1600.jpg The current in a DC motor, as well as in a servo, determines the ...
Gael Alejandro's user avatar
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I got my hands on a Gigo microbit robotics set. It uses a control box to house the microbit. As you can see from the control box specs, it uses 6 AA batteries, but it can also use an external micro-...
Wizard's user avatar
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I have a basic setup controlling a servo using a PCA9865. Given some servos under full load, can they draw 1 A? I am probably going to exceed the current limit of the device. How would you control 12 ...
Rob 's user avatar
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2 answers
178 views

Most servo motors out there are driven within 180° (at least hobby ones). There are more bulky and expensive servos out there as well. Since, I have tight space constraints, I am looking for a ...
VPNer's user avatar
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3 votes
1 answer
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My project has an ESP32 C3 and 9g servo. It has to be mobile, thus battery powered. Due to space constraints, I can’t use 4 AA batteries even though that would be ideal. I would like to use two NiMH ...
cjb567's user avatar
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2 votes
1 answer
551 views

I've looked around a bit and it seems that servo potentiometers are in the ~5kOhm range. Why 5k? Ultimately it's just a linear voltage divider, so: Aside from idle power consumption, does the value ...
KJ7LNW's user avatar
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1 vote
1 answer
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I'm confused by the fact that PLCopen MC-blocks used to control servo drives from a PLC have separate acceleration and deceleration parameter. For instance, MC_MoveAbsolute. I don't understand what ...
relatively_random's user avatar
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1 vote
1 answer
107 views

I am not particularly familiar with electronics and circuits in general although I do have some basic experience. My concern is that to carry enough current for all five motors I would need at least 5 ...
James Taylor's user avatar
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0 votes
1 answer
325 views

I don't understand the different specifications of the maximum force of a servo motor vs the torque of a rotary switch. In the following example, there is a servo spec'ed at "Maximum Torque at 6V:...
0__'s user avatar
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0 votes
1 answer
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I need to control 4 servos using a PLC that operates with 24V. The problem is that servos use only 5V. To accomplish this, I built a simple circuit using some 7805 and a large 1000 µF capacitor to ...
Rafa Borges's user avatar
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1 vote
0 answers
114 views

I have a PQ12-30-6-r Actuonix actuator that's moving erratically. When I set the width of the pulse from 1-2 ms then it will move down immediately, and vice versa back up. I can go to 1.5 ms as well, ...
Lloyd Hussell's user avatar
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0 answers
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I attempting to move a servo (controlled by an Arduino) with a Python script. The Python script issues a command to the Arduino to tell it where to move the servo head to. The communication is handled ...
Slash's user avatar
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0 votes
0 answers
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There is an issue on my custom ESP32 PCB board. One of its features is to control a very high torque hobby servo motor (this one). The PCB works perfectly with a bench power supply but not with a ...
AyubowanPro's user avatar
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1 vote
2 answers
122 views

I would like to create a program that uses a Raspberry Pi Pico, this four-digit seven-segment display, SG90 micro servos, and one of these buttons. My idea is that every time the button is depressed, ...
Vorde Vord's user avatar
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0 votes
0 answers
193 views

I am trying to control regular SG90 servo with a Raspberry Pi Pico. My problem is that those servos produce maximum torque while powered by voltage between 4.8V to 6V (5V is optimal for me.) I powered ...
Papouc's user avatar
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0 votes
3 answers
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I'm doing a robot arm for a project, but programming has become the least of my problems. I don't know how to connect the servo motors. I have a power module that apparently has around 5 V of output (...
Akko's user avatar
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5 votes
2 answers
1k views

I'm making my project and I managed to kill 2 ESP32 boards. First time I thought it was just accident (me shorting 2 wires) because my cables were messy, but it happened again and the circumstances ...
krystof18's user avatar
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1 vote
1 answer
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I am using FOC to control torque of 220V AC servo (SPMSM) with 36V power supply at low speed (100-200rpm). I tested with some servos (different manufacturers) which has specs as the below table. But I ...
Breezehn's user avatar
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