LED Board Control

Hi there.  I salvaged 2 boards of LEDs from an old LED can at work.  They were previously DMX, and have an array of red, green, and blue LEDs.  There are four leads coming from the board, +, -, a dashed line, and an unmarked line.  I am looking to integrate these with another project, but am unsure how to go about finding how to control them electrically.  I was thinking it might be digitally controlled right on the board, but I see no IC.   All I am looking to do is figure out where voltage needs to be applied in order to have different RGB levels.  If I helps, the number printed on the board is FT140PCB GS.  I am able to attach an image if that would be helpful. Any ideas of how to go about this?  Thanks a lot, anything would help!

Topic by chamberlain2007 7 years ago  |  last reply 7 years ago


Interface board

I want to experiment with controllers/interfaces and stuffis this a good interface board (for me?)http://www.velleman.be/nl/en/product/view/?id=351346

Topic by Firehunter 11 years ago  |  last reply 11 years ago


servo board

Fount this on my daily Internet rumage. its a board that turns a servo in sequence with a poteniomiter. wonder if it could be made to control a more powerful motor?

Topic by HP psc 2110 all-in-one makebot 10 years ago  |  last reply 6 years ago


Bypassing a multi function controller

I have just bought a laser nebular disco thingy off ebay (incorporating a red and green laser) - and whilst its works fine, I don't like the fact that it switches between various modes automatically (flashing, steady, red only, green only etc).  I opened it up to get some pictures of the circuit board - and wondered if anyone with knowledge of electronics could point me in the right direction with regards to bypassing the multi function controller on the circuit board.  I just want both lasers to remain on all the time. Thanks

Topic by Bunglinpie 6 years ago  |  last reply 6 years ago


old printer controller board

Hi, i have been looking around allot on how to use a old printer control board that houses the surface mounted micro controller, I want to control various motors with it. i was wondering how do i go about programming the board or sending commands to it from the computer? the board connects with usb ther is one of those kind of square usb slots on the board.

Topic by mrn 5 years ago  |  last reply 5 years ago


T370hw02 v0 control board

Hey.I have a t370hw02 v0 control board with a lcd scrren attached, and was wondering how i could get a display board (to actually use the screen) Is the posible, and how does the sceen work? There was backlighting in the case (it came from a tv) and i am not quite sure i understand how that works :| pls help. I understand that i have minimal knowledge on the topic, but i am here to learn

Question by RasmusL15 4 months ago


Relay control board for ROV

     I'm working on a control system for my ROV and I'm not sure what to do. I plan on having 2 wires for power then a cat-5 cable for control of relays/ video. Does anyone have any ideas, schematics, or plans for a relay based control system... Inputs to controls: - 12v boat battery - 5 pairs of 22 AWG solid wire ROV side hardware: - 3  500GPH attwood bilge pumps modified with 60mm model boat propellers - 1 A/V camera - 2 3 LED lights (9v per 3)   If anyone needs any extra information... The ROV is based off of the SeaFox ROV from www.amazon.com/Build-Underwater-Robot-Other-Projects/dp/0968161006.  Please realize that it uses a near similar frame but different motors. Thanks to all who help. Citing and stuff: - ROV picture - homebuiltrovs.com

Topic by ry25920 9 years ago  |  last reply 9 years ago


Printer Board is a CNC controller. ?

Can anyone pls show me link to subjects on this matter with minimum need for programming langauge ? my perception is that if we can make printer draw a picture without waiting for ink signal; then cartridge can easily be replaced with a curring blade, torch or drill...is it possible to pinpoint the pin that sends ink OK back to printer and connect it direct to +VE so that it give ink available always. please help me work on this project. Again if possible with min or no programming... thanks

Question by goldenshuttle 6 years ago  |  last reply 6 years ago


Trim Circuit Board?

Hey guys. I'm new to these forms so please bear with me. I'm looking to undertake this project:    Snes bluetooth Controller Mod https://www.instructables.com/id/Bluetooth-SNES-controllergamepad/   My goal is to be able to fit the keyboard into the Snes controller. My question is would you be able to cut off some of the unused keys on the bluetooth keyboard and still keep it functional?

Topic by Vega 034 4 years ago  |  last reply 4 years ago


microcontroller on arduino board?

I am a newbie to arduino.I 've learnt atmega328 controllers are used on arduino.I am using arduino smd rev3 can someone please label it for me?  

Question by manaswini1317 3 years ago  |  last reply 3 years ago


Is it possible to bind volume controls to a keyboard that doesn't have default volume control buttons? Answered

And if so, how? I just bought a keyboard that doesn't have any preset volume control keys, could i somehow bind the volume control function to two keys i don't ever use?

Question by Sanclous 8 years ago  |  last reply 8 years ago


Timed control board for a reversible motor

Hello, In need to connect a control board to a reversible motor so that the motor would rotate in one direction for "x" seconds and then automatically switch and rotate for "y" seconds in a reverse direction. I got the following parts in hand: - reversible motor - https://www.amazon.com/gp/product/B01N687NGU/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc;=1 - control board - https://www.amazon.com/gp/product/B01HB1X75U/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc;=1 - DC adapter - https://www.amazon.com/gp/product/B00S1GRFYY/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc;=1 Control board works and is going through the proper cycle as indicated in description however the motor only rotates in one direction and never switches. Realizing this this something that I am doing wrong with wiring, so hoping for an advice from someone who knows better in terms of how to set it up correctly and which jumpers or anything need to present so that it works and where things should be wired into. I am also attaching an image with descriptions for connectors that I received from the company. Thank you in advance for your advice.

Topic by dxbxlx 1 year ago


I need to know where to put the POT in the treadmill motor controller?

 I need to know where to put the POT in the treadmill motor controller? Because I have a digital controller from model MC2100 (proform 400X) Thanks

Question by dulo 9 years ago  |  last reply 9 years ago


Can we redraw these circles in the remote control circuit board?

Dear Experts, Attached picture is of the Philips home theatre remote control. It actually has 12 buttons but only 8.5 of them are visible clearly on the circuit board. The last row is totally invisible and those buttons doesn't work as well. Can you please help me with some tips to get it fixed. This remote control is not available in the market anywhere and hence this attempt.

Question by kevivnajar 5 years ago  |  last reply 5 years ago


accelerometer controller

Hi I’m making an accelerometer (3-axis) that I want to be able to work in some programs and games. I haven’t built any tech´s before. Hehe so plz replay with easy words. There are some tutorials out there which are based on an old game controller and stuff. But I want to do my on an Arduino board with a USB connection or wireless connection. Here is a tricky part, I want it to fit a cube chassi that is around 7-10 centimeters, I haven’t done it yet so that’s why I put it to 7-10 cm because I have still time to make it bigger or smaller. I don’t know much about the wireless connection and battery to make these things. I know I’m sounding like someone that doesn’t have a clue about these things and it’s true, I want to learn it and make this controller. If someone can tell me more about this sort of project or tips me to a tutorial or something it would be excellent.

Topic by Blackanemone 9 years ago  |  last reply 9 years ago


solenoid valve control

Hi, im wanting to build somthing simple to control the heater control valve on my fiesta. its a simple solenoid valve at 0v its open(hot) at 12v(14.4v) its closed(cold) the propper control board uses pulses to control the valve, the board has since given up and im left with a very hot car, now i thought a simple way to sort the problem might be to use the 10k pot on the control board with a MOSFET and just vary the voltage going to the valve. will this have the same effect on the valve?

Topic by stevelee10 6 years ago  |  last reply 6 years ago


control Stereo Volume

I have an old style Cassette SONY x-plod car audio stereo player for car. i have removed main cassette section & replaced it with an USB MP3/FM board with remote control. I made this because i believe in SONY's amplifier so successfully tracked amp track to get source from USB board. But here i got a problem with board which forgets volume level & restores to 25 level(Default range 0 to 50 level). so volume is boosting at high at every start of player. Now i want to Analog stereo volume controller between USB board's output & SONY amplifier's input. so what should be the configuration for volume controller??? Output target for amplifier is 4speaker(2x150Watts[Front] & 2x180Watts[Rear]). Does my idea works?? if it works what is the configuration for Analog stereo volume controller.??

Question by chinnuabhi 6 years ago  |  last reply 6 years ago


Help with CNC Control Board (HobbyCNC EZ Driver Board)

I purchased a HobbyCNC EZ Driver Board from hobbycnc.com and I have some questions on how to use it. The instructions say that I need to use a power supply that can provide 50% of the TOTAL current draw of the steppers. It also says that a 2.5A stepper will draw 5 amps. So if I have 3 steppers that say 1.3A on them does that mean I need a power supply that can provide at least 7.8 amps or? And finally, it says I have to adjust the current coming from the board to each stepper. It gives the equation: desired amps times (X) .14= Vref. So since I have steppers that say 1.3A on them do I use that for desired amps or am I supposed to use double that?????? Anyone who has used the HobbyCNC EZ Driver Board, PLEASE help I am very confused.

Question by Electronics Man 7 years ago  |  last reply 7 years ago


Building a cnc controller?

I am building a homemade cnc machine that will have an X Y1 Y2 Z and eventually a lathe. And I was wondering if I could use an 4-axis Breakout board, and just run the Y-axis to two different Divers to power the Y-axis stepper motors. If not what would be a good breakout board that is able to connect e-stop, Homing switches, router on off, and touch plate. 

Question by Rileigh Crow 4 years ago  |  last reply 4 years ago


How to control Stepper Motor with Integrated Controller, with Arduino

I salvaged a few big stepper motors from a large Laser printer. Unfortunately they all have integrated controller boards. I would like to control them with an arduino. I am aware that an option is to remove the PCB then use a regular contoller. I would prefer to use the integrated board. The boards have the following inputs: 24V GND P/S LD CLK +5 GND The high and low voltage and ground are obvious. CLK is the clock speed (which I half understand). LD is Load?? P/S is pulse?? The board has an SLA6024 with a nice heatsink. (perhaps that helps. I am after a wiring diagram and arduino sketch to control the motor for a CNC machine. Your help is appreciated. Attached are a few images.

Topic by craigevert 7 years ago  |  last reply 5 years ago


Computer controlled switch?

I am looking to close a circuit using software on my pc, and if possible through the network but worse case I can connect to a specific pc. I have a door mechanism that opens when a certain circuit is closed, so I want to be able to control that door from my office.  I can do any wiring or add a circuit board to a pc that about 15 feet away. I was thinking some kind of circuit board, or even splicing into a serial port or parallel port and connecting that to the PC.  Then on the PC i would need some kind of program that all it would be is a button that when I press it, the circuit is closed, either for the duration I'm holding down the button, for a certain amount of time after the button is pressed or anything really. I'm no electrical engineer of software programmer, but I have a base understanding.  I am in IT and know how to solder and basic programming. My ultimate solution would be some logic board that has an RJ-45 connection that I can give an IP address so I can open the door from any computer on the network and two pins/connections out to close the circuit.  Sending a command to the board from command line would be just as well as a small program that displays a button. Thanks in advance.

Question by JesterJoe 7 years ago  |  last reply 7 years ago


Anybody know how to wire up this IR ON/Off Board?

So I bought this 12V IR Control Receiver Board 1 Channel Relay With 2 Key Remote Control here: http://www.banggood.com/12V-IR-Control-Receiver-Board-1-Channel-Relay-2-Key-Remote-Control-p-933441.html?currency=USD&utm;_source=google&utm;_medium=shopping&utm;_content=ruby&utm;_campaign=Electronic-xie-us&gclid;=CjwKEAjw5ZKiBRDhqa-Yjcml9kYSJABia-RnbvWTZ1n8jFGeBpzKi0nt-SCNMEzh-UVp5sTF4ulsqhoCuInw_wcB Does anybody know how to wire or set one of these up?   It came with no instructions.  I've looked at a couple similar boards and thought I knew how to wire it up, but I am not having any luck.  I can't figure out how to wire up the power and the led light strip I have to get the IR remote to turn on and off. I thought it was a gate sort of thing where you put the positive and ground on either end for the power and then wire up the ground of the LEDs to the same ground as the power but the positive to the center post.  But using my multimeter I can't see it turning anything on and off.   I used my phone camera to see if the remote is working and it is at least IR blasting, I can see the light. So does anybody know how to properly wire one of these up? EDIT: Ok, the two pin terminal by the LED receiver is the power in.  The connector I was using before was bad.   But still trying to figure out how to turn on/off the strip now.  The gate is working as expected with the left and right always having power but the center and ground only have power when the unit is on.   But it's only getting about 1 volt out when on.   My power source is putting out 12v, 2 amps.   Is that my problem?   I have to say I'm not very good at this yet, and I can't really tell what the numbers on it are telling me.   I thought it could do 12 volts out though.

Topic by technicallyartistic 4 years ago  |  last reply 4 years ago


LED board ideas?

So first and foremost, I'm new to DIY electronics and the forum, so apologies in advance, i was linked to this forum through google.(if this isnt the correct forum to ask or against TOS apologies in advance.) What im looking to do is make some sort of LED controller, that allows me to program strobe on/off delay (set how long the lights on, as well as how much time between each strobe)  Not too sure where I would need to begin im assuming, and arduino board would be the best start. I laready own a bunch of these (http://www.emazinglights.com/rave-microlights/elite/elite-multi-mode/elite-matrix-chip.html)  I'm just wanting to tinker around and make my own larger scale ones to incorporate into household items, and still have some of the same functionality.  I am not too concerned with size or anything like that either.

Topic by gallandof 6 years ago


remote control LEDs?

I need a circut to be able to remote control 2 LEDs and the reciving circut must be very light. Any ideas where I can get such a set of circut boards? Schematics? Plese help!

Question by techturtle2 8 years ago  |  last reply 7 years ago


arduino wifi shield code what is wrong? why i cant turn on and off the led?

#include #include IPAddress ip(192, 168, 0, 120); char ssid[] = "TP-LINK_7035CE";     //  your network SSID (name) char pass[] = "(sabra*123)";        // your network password WiFiServer server(80);     // create a server at port 80 String readString;         // stores the HTTP request ////////////////////// void setup(){ WiFi.config(ip); pinMode(6, OUTPUT); //pin selected to control LED //start WIFI WiFi.begin(ssid, pass);   // initialize WiFi device digitalWrite(6, LOW); server.begin(); } void loop(){ // Create a client connection WiFiClient client = server.available();  // try to get client if (client) { while (client.connected()) { if (client.available()) { char c = client.read(); //read char by char HTTP request if (readString.length() < 100) { //store characters to string readString += c; //Serial.print(c); } //if HTTP request has ended if (c == '\n') { /////////////// client.println("HTTP/1.1 200 OK"); //send new page client.println("Content-Type: text/html"); client.println(); client.println(""); client.println(""); client.println("Home Automation"); client.println(""); client.println(""); client.println("Home Automation"); client.println(""); client.println(""); client.println("Turn On Light"); client.println("Turn Off Light"); client.println(""); client.println(""); ///////////////////// control arduino pin if(readString.indexOf("?lighton") >-1)//checks for on { digitalWrite(6, HIGH); // set pin 6 high } else{ if(readString.indexOf("?lightoff") >-1)//checks for off { digitalWrite(6, LOW); // set pin 6 low } } readString=""; //clearing string for next read delay(1); //stopping client client.stop(); } } } } }

Question by ahmad_pika91 3 years ago  |  last reply 3 years ago


Treadmill Motor Control

I have a Horizon T101-04 treadmill that has a control problem. The motor is definitely good. I suspect that the motor control board is good, and the control panel board is bad. The control will not reset or go into diagnostic mode. I want to replace either the control panel board or the entire control system. The motor is 90V DC. For amperage, the motor label says "19A S6 25%" which has no meaning that I understand, other than perhaps that the maximum amperage is 19. The label says "APMS" rather than "AMPS", and I wonder if the "S6" is supposed to be "SC" for "stall current." All of the characters on the label are very legible. To replace the entire set of controls, I can use an industrial DC motor control, but how much horsepower does the control actually need to be able to provide? I don't think that the one on the treadmill actually provides 19A, and is probably close to 1 HP or so in its capability.  To replace the control panel with something else and keep the existing motor control, what do I need? Do I need some type of complex driver circuit? Does it need feed back from tach sensor to do a good job of keeping the speed steady?  If it will work well, I want a simple control set up like a KB Electronics KBMD-240D to which I will add a safety cut-off switch with a lanyard.

Topic by Ineedacircuit 3 years ago  |  last reply 3 years ago


How to activate a relay with a 433mhz RF board?

I have a raspberry pi set up which already activates a relay via GPIO. Right now I want to activate a relay wirelessly to turn a light off and on. What would I have to do to use a 433mhz board(transmitter at the pi, receiver at the relay) to turn the light on and off? Or if there is an easier to do this then I'd much rather hear about that. Thank you.

Question by CalebS8 3 years ago  |  last reply 3 years ago


Help with Circuit Board

The effect light below is supposed to sequence the lights on and off, one at a time, in response to music (sound). Well it does that, but not until the input is around 95 - 100 DBs. I'm trying to figure out what to replace so that it responds to sounds at lower DB levels. The left knob on the rear is for sound adjustment (worthless at this point), the right knob is the chase (sequence)speed. The sound is set to max and the lights still doesn't respond until you really crank the music up. CN2 is where the sound and chase controls connect. It's wired, left to right as follows 1 - red from chase knob 2 - yellow from chase knob 3 - red from sound knob 4 - yellow from sound knob 5 - blue from sound knob The pin block in front of CN2 is power and the other block goes to LEDs on the rear of the unit. I'm trying to figure out what I can replace to make this more sensitive to sound input. The mic isn't the issue, I've tried several and even directly wired headphone input into it and still had to crank it up before it would respond. No comments on my soldering butcher job on the back. The red wire is the positive to the mic (which should be in the burned out hole to the left, but it works there - no better, but no worse) Any thoughts at all on what I could play with to make this thing respond to sound a lower levels would be greatly appreciated.

Topic by BradWhite 11 years ago  |  last reply 11 years ago


4 channel 12v relay board

I'm looking for a 4 - channel 12v relay board that can be controlled by a pc either by usb or Bluetooth. Each channel needs to support 5A minimum and control software should come with the board. Anyone know of a decent one?

Question by srowland2 2 years ago  |  last reply 2 years ago


Speed control for a 24v to 250w wheelchair motor Answered

 Speed controller for a 24v to 250w wheelchair motor. Can anyone give me a list of parts needed to build  this also a  circuit board diagram showing where to put the components and the size of the PWM that would be required. Thanking you all again. hoplite66

Question by hoplite66 9 years ago  |  last reply 4 years ago


Radio controlling the SSC-32 Servo Controller?

I am planning on making a RC humanoid robot (like the ones in the kung fu competition at robogames), and I am probably going to use the SCC - 32 Servo Controller.  I am pretty sure that you can use a ps2 remote to control it, but on the robogames website it says that they want you to use a PCM controller.  How would I connect a PCM controller to the board?  Also is it even possible?  If it is not then would the controller that the robonova uses work with a PCM controller? Thanks in Advance!

Question by JaredsProjects 9 years ago


Electric Standing Desk Controller for Direct Control?

Does anyone know what the controller is for most of the electric standing desks? I have a Jarvis and it seems that it uses the same controller as the GeekDesk. The box appears to have an RJ11 serial connection that is not used in the desk operation, I am wondering if that is whats used to program the controller board, and if so perhaps I can enable direct serial control for setting desk heights from my pc. Has anyone tinkered with this by chance?

Question by jeyton 3 years ago  |  last reply 3 years ago


Stepper motor controllers

Does anyone know where I can buy some bipolar stepper motor controllers and an H-bridge in one package? Or even better, schematics/pcb layout of a driver board?UPDATE:Does anybody have any experience with the Easy Driver? It seems like a cheap alternatives to some of the other available controllers, but I just want to know if you get what you pay for.

Topic by ongissim 11 years ago  |  last reply 11 years ago


Help with ST72F324 micro controller?

I need to read the software program from this chip used in control equipment . The original manufacturer is no longer in business but issued a software update before going under. I have an updated control board and if it's not code protected I can then update other equipment still currently in service. I don't want to spend to much as I'm not sure if it's readable? The control board has a 10 way programming IDC socket on board to allow software updates... so I just need to link to this by the simplest / easiest method possible.

Question by appolo 9 years ago  |  last reply 8 years ago


Can you fit an an Xbox controller's circuits into another consoles controller? or vice versa?

Just wondering if i can make an xbox controller look like a ps3 controller or gamecube a gamecube controller would be most preferable since i have a couple left over, including a wavebird if that is important

Question by holy_cow 10 years ago  |  last reply 10 years ago


electronic numeric display board for volleyball

I have searched the Internet hard for a reasonably priced electronic numeric display board to no avail.  I am interested in constructing a remote control scoreboard for volleyball similar to basketball scoreboards deployed in high schools.  For many years I have played and continue to play a LOT of drop in volleyball at various local Rec Centers.  It would be great to be able to keep track of the score with a remote control device in your pocket while playing the game. Alternatively please let me know of any high schools being torn down which could be an opportunity to save a basketball scoreboard that would otherwise be relegated to a land fill site. When you think about the utility of such a device, why hasn't this project been done before?  Maybe it has and if you have any info then PLEASE forward.   I would seriously entertain any posted price for such a completed device if it exists as the hero factor is huge.  The advantage of building it yourself is that you are in a position to manufacture duplicates for others and you become the repair man. The bigger the display board, the better.  I know they exist but are mostly cost prohibitive.  At this point I am prepared to start with a small display for the prototype in order to get this project started since I am very enthused.

Question by rjwiles 6 years ago  |  last reply 6 years ago


Arduino control via android

The arduino board needs to be controlled from My android mobile..!! is there a solution for controlling the arduino from the android mobile through any means like USB,Bluetooth or Internet...!!??

Topic by rraja2 6 years ago  |  last reply 6 years ago


How can I use the flight control board?

I am making a quadcopter and I am in some confusion. I am planing to get a KKv3 Flight Control Board from Hobby King. The question is, if I get the board then what is the need of getting a seperate IMU6050 as I have seen in some projects that people have used the 6050 sensor along with the Flight Control Board. Is it necessary to use that? As the flight control already have sensors on them. Also, does the flight control board gets connected to the arduino? and if so then how?

Question by Bam Boy 5 years ago


Adding remotecontrols to electric devices

I am looking to add a remote control to a circuit board which controls two separate motors (forward/backward and left/right) The control should be pressure sensitive. right now the control is a mounted 4 directional switch (like on a motorized wheel chair). How can I add a remote to it? I have an old R/C car board, and the remote that goes with it.

Topic by DaMadProfessor 11 years ago


Use a key board to make an N64 PC controller?

I want to know if i were to solder wires from the buttons on the N64 controller to the circuit board of the keyboard so that if i were to press A on the N64 controller it would press a on the keyboard or if i were to move the joystick it would affect WASD

Question by four_eyes954 8 years ago  |  last reply 8 years ago


Choosing an Arduino compatible board

Hey everyone. I'm very new to microcontrollers. I've never dealt with them but I do know how to program. I'm interested in creating a wall-avoiding RC truck on a tight budget. I'm mostly going to be following this instructable https://www.instructables.com/id/RC-Car-to-Robot/ as well as this one https://www.instructables.com/id/Simple-RC-car-for-beginners-Android-control-over-/?ALLSTEPS I'm thinking about getting this arduino-compatible board.  http://www.ebay.com/itm/Tosduino-MEGA2560-R3-Board-Arduino-compatible-/330947766756?pt=LH_DefaultDomain_2&hash;=item4d0e0629e4 This is a motor module I'm looking at. http://www.ebay.com/itm/L298N-DC-Stepper-Motor-Driver-Controller-Module-Robot-Dual-H-Bridge-For-Arduino-/370966436323?pt=LH_DefaultDomain_0&hash;=item565f5299e3 I'm wondering if anyone has experience with arduino-compatible boards or maybe even tosduino specifically. Are they fairly reliable? Is this motor module something that could work? Why is it only $4 while the motor shield for arduino is $20 - $30. I really have no idea as I would just be following tutorials to get my feet wet in the arduino world. Thanks, BlueShorts

Topic by BlueShorts 5 years ago  |  last reply 5 years ago


Arduino and Servo Motor Control

I was wondering if I could control higher voltage servos (lets say off a 18v battery, more than my arduino board can handle) by building a separate circuit for my servos power and ground wires and putting my servo's Input/output (or pulse if you prefer) wire directly into the arduino board's sockets.  Would this a) damage my arduino? and/or b) effectively regulate servo positioning? (fritzing file attached).   Or would I be forced to use relays?        Thanks, Authority28

Topic by authority28 5 years ago


How to control a solenoid? Answered

Hi, I have a tiny solenoid from an automatic air freshener that I want to control manually. The solenoid acts as a valve that opens when fed 5v, and closed when no voltage is present. On the factory board, there's a timer that triggers the solenoid every few minutes for a fraction of a second (opens and closes so fast it just sounds like a click). What is the simplest way (No Arduino, Raspberry, etc.) to make a 5 volt pulse to make it go "click" on the push of a button?  Further more, how would I control the length of the 5v pulse?  I want to be able to control the amount of gas it passes (Pun intended) when activated. Any information would be helpful, and a circuit diagram would be greatly appreciated (I can read diagrams but can't design a circuit). Thanks!!!

Question by Morgantao 5 years ago  |  last reply 5 years ago


what are all the android apps can be used to control arduino via Bluetooth?

I am planning to control the arduino board via Bluetooth that's why i want to know which android app can be used to control. Can any one suggest me the apps

Question by harish.rahman.75 4 years ago  |  last reply 4 years ago


Need help building a remote control ouija board Answered

Need help building a remote control ouija board. Thinking about electromagnets inside a hollowed out board. I Just need ideas, what will or wont work and what materials I'll need. Any help or info will be much appreciated If someone wants to step in and build it themselves I'd supply them with whatever they needed :D

Question by holl83 9 years ago  |  last reply 3 years ago


What do I use to convert a servo output into a motor output? Answered

I'm thinking about using a board that only controls servos for a robot. But servos don't have the power I need to move it. How do I convert a servo cable so It will run a motor. Or what do I use?Help? ry25920?

Question by ry25920 9 years ago  |  last reply 9 years ago


how can I make a remote controlled sound board for my computer?

I need a remote controlled sound board for any computer imaginable. I need instructions, a pointer 2 a ible, anything

Question by super knex builder 7 years ago


quadcopter with kk board and arduino?

We are using a kk board 2.1.5 to control the  quad copter  and it works just fine.Well now we want to move a bit further and start making our own self stabilization algorithms based on slam algorithms . I want the public's opinion on using both the KK board (to auto stabilize ,don't want to mess around the PID  )  and adding a arduino duo in between the KK board and the receiver . So basically the idea is that the receiver signals are going to be altered using some mathematical functions to add features such as obstacle detection and avoidance  . My friend was rasing some doubts regarding this  as the signal input and pwm output might not be in sync Thanks in advance 

Question by cthaliyath 4 years ago  |  last reply 4 years ago


AXE023 MOTOR DRIVER BOARD HELP?

I try to Build A Motorized Window Blinds Controller with a AXE023 MOTOR DRIVER BOARD CANT SET UP THE CODE. ANYBOBY CAN HELP ME PLEASE THANK YOU

Question by POWERFTK 10 years ago


What Arduino board to use? Answered

As a university project we are making a robot based around a arduino board. The arduino board need to be able to control four stepper motors, two solenoids and have inputs from six analog sensors. The stepper motors will be contolled via EasyDriver stepper motor driver https://www.sparkfun.com/products/retired/10267 and the solenoids via relays. Does anyone have any suggestions for a suitable board? Also in terms of analog sensors, we need to detect where a hole is under the robot. We were thinking of using a system a bit like a line following robot with use of IR detectors. any suggestions on that?? Thanks

Question by benmurton 4 years ago  |  last reply 4 years ago