Questions tagged [circuit]
The circuit tag has no usage guidance.
25
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Protecting electronics against voltage/current extremes and bad polarity
I have built a robot from a wheelchair that has worked very well thus far. It is now time for me to take the next step. I need to implement a permanent power circuit with proper protection.
The ...
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3
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Powering multicopter with multiple dedicated batteries
I am in the starting phase of building a fairly large octo-copter drone. I am currently thinking about the possibility of powering my octo-copter design using 4 separate batteries where each battery ...
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Programming a G-code Interpreter
I want programme my very own G-code generator for my final year electrical engineering project. I know that there are many open source G-code generators out there, but I need a G-code generator which ...
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How can I limit the current sent to my 6V servos to ensure they don't burn out?
I'm using an adjustable desktop power supply (0-30 volt DC, 0-10 amp) to power my robot which has 7 standard 6-volt servos. There are some situations where the robot gets jammed, and power draw ...
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First steps in robotics
I am a High School student and a beginner coming to Robotics and I have no idea where to start. I have spent days searching tutorials and books I could read to start building and programming my first ...
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RC car circuit: what does it do?
I have just disassembled a RC car (a BBR 1:18 Scale Ferrari Enzo from 2005). Attached to the stepper motor that controls the steering of the car was a small circuit board with a cog wheel attached to ...
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Motor driver damage and jerking behavior when load driving in same direction as motor
I'm having trouble with a gear motor being powered by a power supply, while it is being driven by the load in the same direction as the driver wants to drive it. Here is a simple diagram:
The gear ...
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693
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What relay or other gizmo do I need to switch between two circuits?
I have built a fighting bot but improvements could be made. I currently use 1 channel to switch spinners on and off and another for self righting. The spinners cannot turn during self righting as ...
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Understanding how solar panels can supply power to robotic circuits
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 ...
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LT1157 Logic Level Question
I plan to use the LT1157 in my application PCB to act as a switch control from a micro controller side to control the On/Off state of 2 module boards which will be connected in the PCB.
1st Load is ...
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is designing a pcb with multiple controllers a good schematic design?
I am trying to design a bot, it has to measure the temp I am using an 8051 so the adc is taking up a lot of i/o pins so I am thinking of switching it out with a thermostat or put another controller ...
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Issues with the dual VNH2SP30 motor carrier and 131:1 metal gearmotor 37Dx73L mm w/ 64 cpr encoders
For a while now I have been trying to build my own robotic platform, kind of like a turtlebot. However, I have kept running into an issue with controlling the motors. My main controller for sensor ...
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357
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How to make a motion sensor circuit, that can communicate with my LAN? [closed]
I'm a newbie to Electronics/ Robotics, but I love to do it as a hobby.
So I want to build a circuit (a really small in size would be much better) with a motion sensor that can communicate data (...
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1
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How to control ESC from Arduino?
I have an Arduino Uno, 9 volt battery, ESC and a brushless outrunner motor. When connecting the motor straight to the battery the motor rotates once which is good but when using my Arduino code to ...
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What is the cheapest way to make led sensitive to sound around?
There is always a way to do this using arduino, rasberry pi etc. However, in many cases in discussion in forums i've come across things where whole 'logic' can be uploaded to $0.50 chip. Instead of $...
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I need to read a lot of analog signals without any analog pins
I have an nvidia xavier with gpio running linux. It should work very similarly to raspberry pis. I need to connect a bunch of pressure sensors, thermistor, potentiometers, and vibration sensors to my ...
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How to determine how long a battery will power a robotic circuit for?
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/...
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Internal Pullup Sufficient for i2c in beaglebone Black?
I plan to use P8.13 and P8.15 of the beaglebone in a i2c bitbang mode.
Do i need to use external pull up resistors in my circuit? or can i use the internal pull up which is available on the beaglebone ...
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Arduino with two Linear Actuators, two ACS714 Current Sensors, and an L298N Motor Driver setup
I am using the L298N motor driver to drive two HAD1 linear actuators (12V each and a no-load drive current of ~950mA each)
Linear Actuator: http://www.alibaba.com/showroom/mini-linear-actuator-had1....
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What type of electric motor and speed-controlled circuit do I use to bounce a hanging, 5 pound weight? (it's for a Halloween decoration)
I'm trying to make a roughly 5 pound, hanging halloween decoration bounce on a string from about 1-3 times per second, preferably at variable speeds if I can.
I've looked up a simple DC motor circuit ...
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Can I use a breadboard to power multiple SG90 servos?
I am planning on using 10 Towerpro SG90 servos, which operate at 4.8V or 6V and can require a maximum stall current of 700ma. If I use a breadboard like this one (https://www.amazon.com/gp/product/...
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Mini Recorder from RC Heli Parts
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 ...
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Using python to create AI
Just asking a quick question about implementing some python AI. I have a home built circuit running an ATmega32u2 chip and I was wondering if it’s possible to use this code on the chip? Or do I have ...
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What software do you use to design your PCB in the robotics field? [closed]
What is the best software (despite the price) for designing the circuits and PCB boards for robots?
I mean having lots of components, different designing methods, best accuracy, ...
I myself use the ...
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2
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Can I make a simple Bluetooth receiver? [closed]
I can control a relay from an Android smartphone using Arduino and Bluetooth as seen here.
However, it seems too costly to be using Arduino and a Bluetooth receiver for driving a switch. As long as ...
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