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1answer
35 views

How is the concurrency control in hardware?

How a multicore's processor hardware implements concurrency read and write to memory? Is there a special dispatcher, and links that indicate memory usage?
-2
votes
1answer
45 views

How to controlle a motor with arduino

I have 2 og those 12v motor and a 12v battery http://www.enigmaindustries.com/Motors/Bosch_EV_Warrior.htm I want to know what s the best solution to controle the motor with an arduino Uno. Is the ...
0
votes
1answer
41 views

What do I need A0 in a USB Controller (PDIUSBD12)?

I'm reading the datasheet of the USB controller PIDUSBD12, but I can't understand what the goal of the A0 pin. In the controller there is a data bus (D0-7) and this A0 pin, the datasheet says that ...
0
votes
0answers
25 views

What specs of power supply should I get for an IR controller for RGB 5050 LED strip?

Here's the story: Bought an LED strip kit (including 5M reel (150x5050 LEDs, rated at 36W), an IR controller, 12V, 2A AC-DC power adapter and a controller). The power supply failed after a few hours, ...
0
votes
0answers
94 views

Would the Banana Pi's LVDS output work with this LCD screen?

I've recently completely dismantled an old laptop that wasn't working at all. I know that its LCD (and other parts) are working correctly. I wonder if I could use my LCD screen with the LVDS output ...
2
votes
1answer
497 views

What is the difference between a Controller and Microcontroller?

I read, that I need to use a controller, if I want to communicate with a device over Input/Output Adressessing. It is sad, that I need 3 steps: Put the I/O-adress on the motherboard bus The hardware ...
0
votes
1answer
47 views

What is a disable input for on a motor controller for?

I'm trying to figure out this motor controller I recently got and it has two pins called PWM / D2 and PWM / D1, disable inputs. I don't understand the description for them and don't know what they are ...
1
vote
0answers
36 views

Design of PWM controller for Wound Rotor Induction Motor

I want to make a controller for Wound Rotor Induction Motor in which effective external resistance on rotor side is varied by changing the duty cycle(PWM controller) with the help of a chopper.What ...
0
votes
0answers
80 views

What is the type of this IC?

This is the internal structure of an IC. The only information that I have is the use to control the temperature of soldering iron via a triac. Pinout also is missed. Fist thought is the TL494 but ...
0
votes
3answers
64 views

Two voltage sources - selecting with digital signal

I'm trying to build a fan controller based on Arduino. It will be (at least I hope so) possible to either control with pure PWM or voltage regulator based on buck converter. Now what I'm trying to do ...
0
votes
0answers
67 views

Solar panel - voltage regulator

I am contemplating the possibility to run a trolling motor (to push my canoe) with a 250W solar panel. Electrical Specifications: Peak power: 250 W (minus 0, plus 5W Tolerance!) Optimum operating ...
0
votes
1answer
102 views

Solar Charge Controller Function Details

I am planning to make this controller: I would like to understand the way the components work to switch from charging to dumping and vice versa at set points. Note that the 555 timer is not being ...
0
votes
1answer
51 views

isolation between lcd 20*4 lcd and tm4c123 [closed]

power suply required for my launchpad is 3.3 v and that required for lcd is 5 v. I want to isolate lcd and launchpad. What should I do? do i need to put optoisolator between each pin of lcd and ...
0
votes
1answer
48 views

Designing Or Customizing A HDD/SSD Logic Controller

I read this post which answered most of my questions, but was a bit disheartening. So, this one may need to be deleted. I have also done my other research looking through articles like this. Is it ...
-2
votes
1answer
68 views

Lead-lag process control

What is the locus of the following system, and for what value of \$\alpha\$ is the damping ratio 0.5?
0
votes
2answers
46 views

finding a system behaviour [duplicate]

Why is step response so important? for finding properties of a system we use step response of a system why we don't use other basic signals such as impulse or ramp? thanks for your responses.
2
votes
1answer
139 views

Using a TFT display that has no controller

I have been using LCD screens (with the controllers) for my projects for a long time. Now I thought of learning how these screens actually work, the part before they go to the controllers. Well ...
1
vote
0answers
71 views

Designing a lead compensator to stabilize a plant with 2 LHP, 1 RHP, no zeros

I am really puzzled on how to accomplish this problem. I am tasked to design a lead compensator C(s) to stabilize this plant to be used in a closed loop with unity feedback process. P(s) = ...
1
vote
1answer
140 views

What is the difference between disturbance and noise for dynamic systems?

In most references from dynamic system theory, the following linear continuous dynamic system is considered. $$\frac{\text{d}x(t)}{\text{d}t}=Ax(t)+Bu(t)+Dd_{1}(t)\quad (1)$$ $$y(t)=Cx(t)+Ed_{2}(t) ...
1
vote
0answers
203 views

How can I auto tune raspberry pi with a PID controller, so that I don't need to connect it to my PC everytime I have to run my controller

I am building a level controller to check the water level in my home using raspberry pi. I have a control system designed for it. But I found that to operate raspberry pi we need a wireless sensor ...
0
votes
1answer
107 views

Choosing a high-power LED Driver IC [closed]

I need an LED driver to power one (or more) high-power LED(s) for a torch. Design requirements: Efficiency is paramount, since the power source is either a battery or a supercapacitor. Must be able ...
0
votes
0answers
40 views

How to implement a multiple controller system?

I want to make a system that switches between multiple controllers depending on a parameter 'x' in the system. Eg. If there is no noise use a pid controller. If there is noise use a resonant ...
0
votes
0answers
48 views

Custom IR LED controller for two independent strips

Is there a way to modify a controller with IR remote to control two separate led strips independently. Basically you have two strips, one controller, one remote and you can change the color|turn ...
1
vote
2answers
87 views

Motor controller diagram

I have been reading about motor controllers, and I found this article online (Introduction to Motor Drives and Encoders), but I am having a hard time understanding the diagram (figure below). Can ...
1
vote
1answer
50 views

PLC unit power issues

I am creating my own PLC, just for practice with PLCs (as I am an electrical apprentice). I have bought a power supply which changes 240V AC to 24V DC. When it is connected to my PLC unit, and I read ...
-2
votes
1answer
64 views

LEDs and buttons - ready made [closed]

We want our first semester students to learn programming and see the results of their exercises on a LED matrix. Unfortunately, we can not start soldering with the guys in the first week, so we are ...
1
vote
1answer
124 views

How to calculate the reset time?

I have a little difficulty on my project. Can I calculate Reset Time (Ti) if I just had the value of P gain, I gain, D gain, Process Variable, and Manipulated Variable? Is there any reference about ...
0
votes
3answers
83 views

Motor controller - transistor taking up 3/4th of the voltage

I am trying to make a motor controller for a DC brushed motor. The design is fairly simple, see below - motor represented by inductor The problem I am having is that if we imagine A to be HIGH and ...
0
votes
2answers
90 views

Solar panel system with as minimal reliance on the grid

I am not sure if this is the best place to ask, but I am trying to make a solar panel system which will charge batteries with excess energy and will be connected to the mains (i am going to try the ...
1
vote
2answers
262 views

H-bridge/buck converter with negative and positive voltage range

as already questioned here, i am still working on peltier controllers. For that I am using a stepper motor driver (h-bridge) with a low-pass LC filter and the peltier element behind, as Olin Lathrop ...
0
votes
0answers
1k views

How to connect smartphone LCD to HDMI (how to make controller)

I need very small HDMI display. I saw HDMIPi - 9 inch is too big for me, if that display was 5-7 inch - it would be perfect for me. There are 7 inch HDMI displays for cameras, but they are big, ...
1
vote
2answers
639 views

Is it safe to use a voltage divider for Arduino and DC motor controller?

I have ordered a Dual H-Bridge 12A continuous (30A peak) Polulu motor driver shield for my upcoming (first time ever, a 1.2m long tank made of wood) robot project. I was thinking about how to supply ...
0
votes
0answers
38 views

Create State machine and implement on CPLD [duplicate]

I have this conditions for traffic controller. I excuted this on table. Now I want to implement this to state machine. Then after I will use this state machine to create VHDL and implement it in CPLD. ...
5
votes
3answers
411 views

Why do digital controllers need A/D and D/A converters?

One of the questions in our final exam will be "Explain the need of A/D and D/A converters in digital controllers". I could not find the reason anywhere why the Plant part of a block diagram requires ...
0
votes
3answers
259 views

Motor PWM Controllers Too Good to be True

I am working on a project which involves driving 2 high power 60amp stall 12v motors from an arduino. I had been browsing available drivers, and everything on the market seems to be quite expensive ...
0
votes
3answers
111 views

2 momentary switches, controlling 4 outputs in sequence using latching type relays

I am interested in building a solenoid controller using latching type relays(containing 2 coils and DPDT). The relays are controlled using two momentary switches. The action I am looking to get is by ...
0
votes
3answers
157 views

Custom PC input peripheral

I would like to somehow plug an extra button to my computer that when pressed would execute some shell script. Backstory: I'm a programmer and I very much wish I had a big red button to commence the ...
2
votes
0answers
212 views

Can I use full-size 64/72 bit DDR2/DDR3 memory module with CycloneV hardware controller of 24 + 24 bits?

I thinking of using Cyclone V FPGA and its hardware memory controller: There is "Cyclone V FPGA Multiport Memory Controller" document from Altera: ...
0
votes
1answer
203 views

Need a transistor to drive 12v 400mA Solenoid

I need a transistor whose base will be driven by a controller (3mA max base current). the Vce(sat) should be less than 0.5 or max 0.7. And collector current required by solenoid is 400mA. I am unable ...
0
votes
2answers
601 views

Xbox 360 Controller to Nintendo 64 Console

The goal of this project is to create a working adapter between a wired Xbox 360 controller and a Nintendo 64 game console. The signals from the Xbox 360 controller USB port data pins (Data+ and ...
3
votes
0answers
423 views

FPGA link to external memory

I am trying to use the cellular ram on the Nexys 4 FPGA development board. I am using Xilinx Vivado and would like a Microblaze soft core processor to be able to perform reads and writes. So far I ...
0
votes
3answers
242 views

Low Voltage DC controlling 120 AC, with Arduino

I'm looking for a type of device I can hook my arduino (micro-controller) to that will control a set of lights that require 120VAC. Basically I will be making a light organ, where the arduino will be ...
1
vote
1answer
84 views

Dual Motor PWM Controller

Background: I am not a professional teacher, but I have been helping out some kids (including my own) with math and science. I thought it might be fun for the kids to decide on a project of their ...
0
votes
1answer
229 views

PWM motor controller to switch down voltage on a boat

I'm planning to use a bank of 4 x 12V batteries in series on my boat in order to provide 48V to power an electric DC motor. I also need 12V power for things like lights, fridge, etc. I thought of ...
-2
votes
2answers
109 views

External programing of an mcu without Hex

We need to change a controller code from the out side as they do with industrial MCU. So that you have an MCU, with a program on it, and someone can program some "words" to it, that will determine how ...
2
votes
1answer
177 views

Do I have to explicitly connect all pins of the ethernet chip in the FPGA when designing a new controller?

Regarding the Ethernet peripheral of the Spartan 3E FPGA specifically the SMSC LAN83C185 Ethernet chip. The task is to create our own interface between the PLB and the ethernet chip. So far, I've been ...
4
votes
2answers
923 views

Salvaged touch pad from old laptop projects

I salvaged this touchpad from an old laptop and I would like some ideas for using it, I thought about using it as a light dimmer for two sets of lights. Does anyone know how it works? I'm sort of a ...
-2
votes
2answers
1k views

Diffrance between Brushed ESC and Brushed DC Motor Driver (Controller)

What is the diffrance between a Brushed ESC (electronic speed controller) and a Brushed DC Motor Driver (controller)? they both do the same job, yet at different prices and look diffrent. Example: ...
3
votes
1answer
521 views

PIR Detector Controller IC

Honestly, I have a good deal of questions so this may not be for the faint of heart. I will do my best to ask them in a logical order with specific language. I really appreciate the helpful ...
5
votes
5answers
2k views

Can I control a voltage output from a microcontroller?

I have to generate values between 0V and 0.8V for a circuit and take the value of the voltage output from the system and analyze the data. Can I generate voltage values automatically using a ...