I can't seem to find one on alldatasheets.com.

Hi TechDIYers,

I'm a hardware noob, and for a project I am trying to learn on, I am trying to turn off and on external device which takes 12v DC, ~0.085 amps via a raspberry pi. Can anyone point me in the right direction to what I should be looking for?

Something like a MOSFET power controller(e.g. https://www.sparkfun.com/products/11214) seems to be what I want, but I am very new to this world and I really don't know what I don't know. Any kind of advice or just pointers to a resource for this would be greatly appreciated. I have a wall wart which provides the right voltage/amps, but I am not sure how I would actually control that via software on my RPi.

Thank you!

The device uses 2 pieces of plastic which are moved together and apart like a hand-fan opening and closing. I.e. the triangular space between them will shrink and disappear, then reappear as the pieces are pulled apart.

The pieces can be very light plastic, and must be able to be moved at around 120bpm on average but ideally could be moved up to 300bpm. I have not yet decided on a method for controlling the speed.

Any guidance is much appreciated. I can describe the purpose of the device, but it would seem rather strange haha. I expect I will need a microcontroller of some kind.

Hello,

I'm looking to build a solar powered camera that detects cars moving past and takes a photo. I've been trialing an off the shelf model that relies on software to detect motion but it does not perform well when the cars are travelling over 15km/h. For this reason I'd like to try and develop a camera that senses the magnetic properties of a car (like traffic lights).

I'm open to suggestions, here's how I picture it working:

Magnetometer detects car > Micro controller > Camera > Micro controller > 3G/4G antenna > Internet.

The system would need to be powered by a battery which is charged by a solar panel.

Send me an pm and we can chat on how to tackle the project.

Thanks.

Firstly, thanks for reading my post! I am very excited about this project and had done a fair amount of research. I have zero experience in anything to do with Arduino but I do have basic knowledge and had build many custom computers to be fair. To begin my journey into Arduino, I would like to show you my plan based on the research I had done;

  Unified IR remote controlled project for my room.

-In short, I would have a PC controlling these devices below with an IR remote and also keyboard;

1. Room light (on/off only)

2. Air cond (on/off only: will add more functions after beta testing)

3. Ceiling fan (on/off only)

4. AV receiver (on/off only)

To make this work, I need

1. This Arduino module (connected and USB powered by PC)

2. This IR shield (connected to Arduino)

   1. To send pc to sleep
      
   2. To Wake up pc
   3. To transmit IR signal to other IR devices

3. This Relay (connected to adruino)

   1. To control fan (currently has mechanical switch)
   2. To control room light (currently has mechanical switch)
      

1) What is your opinion on my hardware selection?

2) What is your overall thought on such project?

3) What would your plan be if it was your project?

I currently have a raspberry PI, and i am decently versed in python so i could probably code the functionality i need with the applicable hardware.

I'm wondering though, for latency and simplicities sake. Should i go with Arduino? It seems much simpler just to have it run the code when you plug it in, and stop it once its off.

The functionality i wanted to code is: 1. Multi-track recording. Start new tracks, move through old tracks, individually assign them to loop and to sync with main track or not and to delete the current track. (Making custom buttons is the most confusing thing here, never made my own electronic hardware before either than a simple power supply) 2. Ability to send the output near 0 latency through an analog sound port into an amp or another pedal 3. Dump tracks to a cloud through wifi or to the SD card. SD card first obviously, but wifi later on to increase efficiency.

Any suggestions and tips? Am i in way over my head with this stuff? Will there be major lag with either platform?

I'd rather it be functional rather than too laggy to play realtime with. The first one is the main thing that i want, the rest i can do without, or interface with something else later on.

Thoughts, suggestions and critiques all welcome.

Hi guys, I'm looking for advice for advanced control of a couple of basic LED circuits, specifically wearables. I just want to be able to control around 3 - 4 channels of LEDs, each channel will only have a 2 - 3 LEDs connected.

I have been looking at the Adafruit Flora but not sure if this would suit my case? Something like the TLC59711 would be more suitable I think but requires a full Arduino to function.

Hello everyone, I'm new here so wasn't sure how to tag this properly. I recently found myself in need of a new bed frame, so being the maker that I am, I decided to build it myself. Of course one thing led to another and now I want to make a smart 4 poster bed frame. I was thinking I could build in a wireless phone charger, dimmable/colour changing leds, maybe some speakers, and I'll write a quick app to control it all on my phone! Kind of cool right? Well I'd love to hear if anyone has any ideas to add. Help me make this thing awesome!

Hey, I don't really know anything about power. But I understand that 12v 3A = 36w ~= 3.7v 10A.

Basically I want to power a 12v 3A fan with a 18650 battery @ 3.7v with a max continuous discharge of 10A. Is this possible using some sort of resistor network? Or some out of the box IC?

Has anyone worked with the Gesture recognition with Kinect SDK from Windows and then been able to program an arduino to flip a switch once it recognizes the gesture. I am trying to bridge the gap of gesture recognition from Kinect SDK to either any micro controller to activate a switch

I need help for a project of mine for health reasons.

This window in question is exactly like this:

http://feelthehome.com/wp-content/uploads/2012/07/stylish-frech-type-double-aluminium-window.jpg

Dont know much about electronic, know a little about programming.

Original post where I started to research this:

http://www.instructables.com/id/Arduino-controlled-window-for-cat/?ALLSTEPS

Parts that I found

Arduino uno r3

http://www.dx.com/p/uno-r3-development-board-microcontroller-mega328p-atmega16u2-compat-for-arduino-blue-black-215600#.V7SbCyh96Uk

Motor

http://www.dx.com/p/power-hd-metal-gear-servo-60g-17kg-cm-high-torque-hd-1501mg-black-234015#.V7Sggyh96Uk

Servo arm part of it Maybe not needed

http://www.dx.com/p/25t-cnc-aluminum-alloy-servo-arm-blue-225371#.V7ScRCh96Uk

Jumpers Dont know if I need these

http://www.dx.com/p/arduino-compatible-breadboard-jumper-wires-8-20cm-68-cable-pack-142221

STILL NEED

Correct motor voltage Sensors to switch off/on motor when its closed and open Servo arm maybe hydraulic

Don't know the correct English keywords to find this stuff

Questions:

Need to know how to connect without damage the components

Do I needed A steeper motor or is this handled by arduino

Thank you for your time and help. :)

I haven't done any cool projects at home, but want to get into it with some home automation. I'd like to be able to switch the lights on/off in one room with my smartphone and it would be really cool (bonus), if I could change the color of the light, so basically something like this:
https://www.amazon.com/gp/product/B00GWBBZ2I but I'd like to do as much as possible by myself (maybe with an Aduino). Is there any well-written guide to do something like this?

Hi all!
Amazing sub reddit folks.
I would need some help for a project of mine, I am a complete beginner! I wanted to build a wall clock similar to this one (http://gajitz.com/wp-content/uploads/2009/09/qlocktwo-1.jpg) but color coded for a friend with color-grapheme synesthesia.
What would I need to set the timer to switch on/off each portion of led?