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0
votes
3answers
21 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
66 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 ...
0
votes
0answers
28 views

How can I use remote controller with an RF module?

I'm using an RF module for transmitting and receving remote controller data like an AV sender. And I have to add preamble, start and stop bit, but I can't use the UART because all remote controllers ...
0
votes
0answers
41 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
64 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
1answer
69 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
123 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
90 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
62 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
122 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
96 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
123 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
365 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 ...
-3
votes
2answers
251 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
263 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 ...
4
votes
4answers
446 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 ...
1
vote
2answers
676 views

Running a MOSFET from a transistor for a fan controller

I have a PC fan controller that is capable of powering 10w per channel. I'd like to put 23w of fans on a single channel, so I am trying to find a way to use the electronics already on the fan ...
1
vote
0answers
232 views

Brushed DC motor with incremental encoder— How do I use it?

I have come across large brushed DC motor, a Dunkermotoren GR 53X30 with an incremental encoder attached. Here are the spec sheets for the motor and the encoder: ...
1
vote
2answers
143 views

what is a transceiver reconfiguration controller on FPGA

I have come across this on an (Altera) FPGAs that make use of high speed protocols but don't know what it does.
-2
votes
1answer
216 views

Should all SATA HDDs spin up without SATA cable? [closed]

I've got a Western Digital WD3200AAJS HDD and am trying to spin it up (I don't really need it as an HDD, I need just its motor to work). After connecting the power cord it didn't spin up, so I am in ...
2
votes
3answers
128 views

Video Controller Design

I'm designing my own computer based on the Zilog Z80. It has 256KiB of static RAM with paging as well as a few megabytes of flash memory. Everything is going along pretty well until * BAM * I hit a ...
0
votes
0answers
78 views

Replacement for ISP1760

We have been using ISP1760 in our designs with Altium Nanoboard. The design uses a shared menory between the SRAM, USB interface, Flash component. Now, the USB controller for the Nanoboard ISP1760 is ...
-3
votes
1answer
313 views

What should I use to create own xbox controller? [closed]

For a college project I am going to create my own xbox controller. I wanted to know which arduino should I purchase and which software can be used to code the buttons. Otherwise what could I use to ...
1
vote
1answer
213 views

Overview of typicals RAID/wear leveling algorithms used in SSD controllers

I am trying to understand SSD controller design. I am particularly interested in the physical distribution of data to several NAND chips/dies. Can somebody point me towards an "idiot's guide to SSD ...
3
votes
1answer
438 views

PS3 Sixaxis controller won't charge over USB [closed]

I made a 5V charging setup and want to connect USB devices to it to charge them. Most devices work ok, but my Playstation 3 Sixaxis controllers won't charge. The voltage is ok, slightly over 5V. As ...
5
votes
5answers
2k views

Simplest circuit that flashes and fades color LEDs synchronized to music?

This is about designing a circuit that can control multiple LEDs synchronized to music or sound, as simply as possible. I am looking for some conceptual ideas to start out with, not a complete circuit ...
0
votes
2answers
400 views

HID descriptor to use for a Playstation 2 controller

I'm currently making a Playstaion 2 controller to USB converter using an Arduino Uno, and it's going along very well, but I'm stuck on a specific problem. I'm trying to support the pressure sensitive ...
1
vote
1answer
106 views

How to Design a State Feedback Controller using an algorithm

I'm studying for an exam and am having a great amount of difficulty wrapping my head around this as I have minimal electrical engineering background, and my notes are confusing. I have read a few ...
2
votes
2answers
2k views

Transistor / mosfet for PWM dimming of 30W RGB LED

I am building a led mood light with a high power RGB LED (30W) using 3 constant power supplies for each color. These are the items I had in mind (but open to suggestions): 30W Integrated RGB LED ...
2
votes
1answer
124 views

I want to find \$\frac{\hat{\theta}}{\hat{T}}\$

I have the next block diagram, and I want to find the transfer function \$\frac{\hat{\theta}}{\hat{T}}\$. I am not sure how to do this, I've got the rules of connection in a series or parallel, but I ...
-2
votes
2answers
228 views

Radio Control Electronic Schematic

My friend, who is interested in jet engines and welding is getting is working on a jet car, or something along that lines. I am just working on the electronics because I like the circuit building and ...
0
votes
1answer
120 views

Program which turns power on/offf

I am a software developer and just started my journey in electronics side. I had this particular idea which I want to do for my project. Problem statement: In my college every room has fans and ...
2
votes
1answer
258 views

IC for converting single phase to three phase

I want to design a device for use and control three phase ac motor with single AC power. I need to able converting single phase to three phase. Also an three phase ac motor controller should be ...
-2
votes
1answer
235 views

Rover 5 Robot Platform Motor Controller [closed]

I am about to purchase a Rover 5 Robot Platform from Spark Fun and I would like to know what type of motor controller I should get, and is there a controlling device instead such as a remote control? ...
7
votes
1answer
372 views

Conversion of PID controller components with state feedback into single transfer function and discrete state-space form

I've been wrestling with this problem for about a week now, as a part of a year-long project. We're designing a controller for a specific reactor based on a model. After looking at this for a while, I ...
2
votes
1answer
620 views

Do PS3 controllers use SPP to send the state of the buttons?

I am making a little Arduino circuit, and I would like to use a PS3 controller to control my project (for now). I know there are things like MotionJoy for PC, but how does this software work? Would ...
0
votes
1answer
272 views

spotify controlled by arduino

I want to build a spotify controller [next song button for the moment] with Arduino to build something like this song changer physical song changer What do I need to control my spotify? using a ...
-1
votes
3answers
411 views

Advanced DC fan controller [closed]

I am wondering if I could get some advice for my final year project. Last year, for my 'mini project' I made a DC fan controller that activated the fan at a specified temperature, to cool it back down ...
3
votes
3answers
1k views

Motor driver board - wingxine - need help with wiring

Recently I bought this motor driver but I didn't get wiring diagram for it (it's last time I bought something like this). I would like someone to provide some wiring schematics for this motor driver ...
1
vote
2answers
254 views

What happened when P controller's gain equal zero?

For example, I use Routh-Hurwitz Cirterion to examine the following system with P controller gain K: \$\frac{{K\left( {2 - s} \right)}}{{{s^3} + 3{s^2} + 5s + 3}}\$ I closed loop it with H=1 and ...
0
votes
1answer
222 views

Host (baseband) controller in mobile phone

Hi mobile world I met many times the term "host controller" or "baseband controller" used interchangeably in the context of being the heart of the mobile. What exaclty is that, som SoC with CPU, GPU, ...
3
votes
1answer
250 views

Schneider EGX100 Gateway with AB PLC 5 series

I was investigating hooking up Modbus devices to an AllenBradley PLC 5/40E using a Schneider Electric EGX100 Ethernet gateway. I can access the web server on the gateway device and monitor the slave ...
1
vote
2answers
453 views

I2C - RS232 controller

anyone have reccomendations for an IC that can be used to access a device with an RS-232 interface from an I2C bus? Id rather have something that doesnt need programming as I already have a uC master ...
1
vote
3answers
2k views

Need help driving N FET gate from LM393 comparator output

I am working on a charge controller circuit idea I had. The circuit 'works' meaning it achieved desired output voltage but the fet doesn't seem to be turning all the way on so lots of heat is ...
1
vote
2answers
3k views

What determines the speed of a brushless DC motor

When driving a brushless DC motor, which parameters control the speed. Is it the current in the windings, the voltage, or both? What determines the maximum speed? If you drive the windings with ...
2
votes
0answers
175 views

What technique is applied to a traffic light system to make sure it is still safe even when errors occur? [closed]

From time to time traffic lights stop operating properly - and so instead of directing the traffic they start flashing yellow and someone from the traffic maintenance must show up to fix them. Does ...
-7
votes
4answers
3k views

stepper motor controller

I wish to know how to build a simple stepper motor controller which can run a bipolar stepper motor in forward and reverse direction in desired speed? My project requires only 5 RPM so high speed is ...
1
vote
1answer
98 views

What motor driver should I use based on amps?

I am building a robot that sports 2 motors ripped from an old RC car. After many attempts to find the data sheets, nothing of use turned up. So, I ran some test and found this out about the motors. ...
5
votes
1answer
683 views

4017 counter: Why do some LEDs have multiple connections in this traffic light circuit?

Schematic (from here): Why are four legs connected to the green LED and two to the amber LED in the 4017 traffic light circuit? Shouldn't it be able to do with only one leg per LED?
1
vote
2answers
1k views

How and when can solar charge controllers be stacked together?

I run a small busniness selling solar charge controllers. Often I have a problem with not having controllers rated high enough amp-wise. I know that charge controllers can be stacked. But can all be ...