Tag is very generic and a bad choice. Please consider a more appropriate and directed tag.

learn more… | top users | synonyms

0
votes
3answers
38 views

Is it possible to directly interface a MEMS ADMP541 microphone over I2S with any Microcontroller?

I have bought a MEMS ADMP541 Evalution kit to record voice samples with arduino controller MEMS microphone will produce digital o/p , I2S communication protocal My question is should I directly ...
0
votes
3answers
97 views

Looking for right component in my simple diagram

I am not electical engineer therefore stumbled upon this simple issue. In need to activate a 120VAC 1HP motor from sprinkler timer that has 4 individual channels providing 24VAC up to 400mA voltage ...
0
votes
1answer
44 views

designing PID controller using Ziegler Nichols algorithm

I'm trying to use Ziegler Nichols algorithm to design PID controller for the following transfer function: G=w^2/(2*xws+w^2), w=1 , x=0.2. so since the step response for this function is a second ...
0
votes
1answer
36 views

digital controller design and mapping analog signal to digital integer values

I have a specific situation i am trying to wrap my head around but i think it should have a general formalism to address the problem. I have designed a BiQuad controller for a buck converter and i ...
-5
votes
3answers
204 views

9-pin mini-DIN - zero resistance between some pins [closed]

There's a volume knob connected to a speaker system with 9-pin mini-DIN. The volume knob contains potentiometer to control volume and is also in charge of turning the system on and off (by turning the ...
0
votes
2answers
73 views

3.3 powered microcontroller interface with 5V powered ADC

I want to use uC LPC1769 (3.3V powered) for interfacing with 5V or 3.3V powered ADC. Controller --> LPC1769 ADC --> AD7705 If we power ADC7705 with 5V, then Vref = 2.5V. But, if we power ...
0
votes
1answer
76 views

Is it possible to control a DC motor with Microstepping driver?

Today I found that electronics dealer have shipped me a Microstepping controller (A4988 -module: http://www.robotshop.com/media/files/PDF/datasheet-1182.pdf -on-board chip: ...
-2
votes
1answer
41 views

charging batteries with automatic car charger through solar charge controller [closed]

Rustic cabin off grid. Seperate wiring for 110AC and 12VDc. Using solar panel through a Steca PR1515 charge controller to charge 2 12v batteries in parallel. If not enought light (at night) to charge ...
1
vote
1answer
60 views

Unused Ethernet pins

I want to use the LAN9500AI controller in an application. This is a USB <-> Ethernet bridge with access to the MII interface. Since I just need the USB and MII interface, the ethernet interface ...
0
votes
2answers
57 views

PWM led controller

I need to control 12V/10W led brightness by a pwm signal. I know I can do it with an arduino and some TIP120 or another power transistor, but the question is, is there another method to generate a 95% ...
0
votes
2answers
91 views

Self-Tuning PID Controller to implement in a PLC without having the plant model?

I need to implement a Self-tuning PID controller in a PLC. I know the behavior of the plant (I mean, I know that if the speed is reduced the tension get high and vice versa), but I do not have a ...
2
votes
5answers
292 views

Understanding a PID controller

I have a couple of questions regarding the PID controllers; maybe it is that I have not understood the concept very well. I will formulate my question with a case: I have a system which consists of ...
0
votes
1answer
42 views

How Home HVAC controller send commands for Cooling, Heating?

i want to know how the Hvac controller sends commands to the hvac for cooling and heating. i mean when we push on + or - button for example to adjust the temperature, what happens on the other side? ...
0
votes
1answer
93 views

Gradually increase and decrease voltage on this circuit

I am using this circuit for a model lift up and down functionality. Vin is +12V. The output voltage is controlled by the 10K linear potentiometer that varies the final output from 3V to 12V. The ...
0
votes
0answers
61 views

Touch sense controller Dout pin loading

I am working on Touch TFT LCD project where LPC2138 is host (main) controller and TSC2046 is touch sense controller for implementing touch interface. TSC2046 is having SPI interface with conventional ...
3
votes
8answers
332 views

Why are there only PID controllers, no PIIIDDD (higher order) controllers?

Transfer function of a PID controller is: \$I\cdot s + P+\dfrac{D}{s}\$ Are there controllers like: \$A\cdot s^2 + B\cdot s + C+\dfrac{D}{s} + \dfrac{E}{s^2}\$ ? If so, are they common? Why do ...
3
votes
1answer
72 views

Use different footprint for a SATA connector

I am designing an Linux Board which needs a SATA connector. Now im faced to choose between 2.5 HDD SATA connectors and the new mSATA (mini PCI express) connectors. For compatiblity and usuabillity ...
0
votes
0answers
29 views

Nand Flash in Static Memory Controller

I want to make an interface between an Atmel Cortex-M7 and a NAND flash memory via Static Memory Controller (SMC). The SMC of the Atmel Cortex M7 supports NAND Flash interface. The question is: Is ...
1
vote
1answer
91 views

How to calculate solar panel setup?

I have an equipment which draws 550W at a constant level, no peaks. I want to power this unit with solar cells only during the day when there is light using a simple car battery. Because I don't want ...
0
votes
1answer
214 views

Difference between a controller (e.g PD) and a compensator(e.g Lead)?

Really.What is it?Can't find anything anywhere related to it...Please don't give fancy examples.Just tell me the difference
0
votes
1answer
131 views

microphone to a microcontroller. very simple

I want to take a microphone and send it to a micro controller. I then want that microcontroller to evaluate if the audio is above a set db reading and then send a yes or no single to turn on a light. ...
0
votes
2answers
130 views

Drum trigger controller

I'm planning to make a drum controller (something like arduino) for pc using a piezo transducer as sensor, some electronic circuit, keyboard PCB connected to usb and sampler for drums in pc. I found ...
0
votes
0answers
75 views

Can I repurpose a tablet touchscreen to use as an oversized touchpad for a computer?

This is what is written on the flex ribbon: A11020A1013 UniDisplay UF-1102 I could only find it for sale on the internet, no real usable information. Only ...
-1
votes
1answer
41 views

Ethernet Generic Controller [closed]

I am a Software engineer and I need to make some program (TCP/IP client) that connect to Ethernet with more than one Ethernet controller devices (TCP/IP Server) that control some electrical components ...
-3
votes
1answer
76 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 ...
1
vote
1answer
78 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
76 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, ...
2
votes
1answer
792 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
50 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 ...
0
votes
0answers
52 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
3answers
98 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
120 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
503 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
79 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
63 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
90 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
47 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
401 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
1answer
298 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
305 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
171 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 ...
1
vote
2answers
98 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
2answers
73 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
67 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
2answers
399 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
91 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
125 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
482 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 ...
3
votes
2answers
1k 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
48 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. ...