Hacked Gadgets Forum

July 30, 2014

µVolume USB Volume Control Project

at 7:55 am. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks

µVolume USB Volume Control Project

 

This neat µVolume project by Rupert Hirst of RunAwayBrainz allows you to control your tunes with a nice big knob that uses a rotary encoder to get the user input. You can see the previous version in action below.

Via: Electronics Lab

“Features:

              Arduino Compatible (Atmel Atmega32u4)
              Manual volume adjustment using the rotary encoder
              (IR) Infra red  remote control of volume and multimedia controls.
              Apple remote or user defined
              Visual and audible Feedback
               RGB Lighting Customization’s”

 

 

 

µVolume USB Volume Control Project _2


July 29, 2014

Arduino GSM Home Automation System

at 11:27 am. Filed under Computer Hacks

Arduino Home Automation System

 

Timofte Andrei shows us how he built his Arduino Home Automation System. The video below is in Romanian but with the English Instructable and video overview you can get a good idea of what is going on. He has went all out and built an Arduino clone for the brain of the system.

 “For this project I’ve used:

1. An Arduino clone
2. SIM900 GSM SHIELD
3. Relay module
4. 2×16 LCD Display
5. DS18B20 temperature sensor
6. Push button
7. Some Dupont wires
8. A led module (this is optional, if you have a chinese relay module with built in LEDs)
9. Some nuts and bolts to mount everything in place
10. A wooden chopping board or other kind of wooden board for propper display of the components”

 


July 28, 2014

Portable Device for Measuring Hydration and Body Fat

at 9:38 am. Filed under Cool Gadgets, DIY Hacks, Educational, Electronic Hacks

 

 

Cornell ECE 5030 students Uma Mohan, Sarvesh Sukhatme and Priyanka Venkatesh have designed a Portable Device for Measuring Hydration and Body Fat. The project passes a small current through the body to measure the amount of hydration in the person. A 940 nm LED is used to detect the amount of fat the person has by shining it through a part of the body, the amount of light that passes through allows them to calculate the body fat of the person.

“We used a LM358 Opamp to make a voltage dependent constant current source. Setting the resistor connected to pin2 as 200 ohms sets the current as the (voltage magnitude/200) A.  The voltage source used was a square wave with magnitude 0.2V and frequency 2Hz.”

 


July 26, 2014

Name the Thing Contest – 256

at 8:24 pm. Filed under Contests

 guess_this_256

 

The prize this week is an SD Card Reader. This contest will run for one week (July 26 – August 1, 2014). Ending time is based on central standard time. To enter, identify the item above and what it can be used for. Please note the image above is a side view of the thing.

Please do not give the answer in the comments.

Send an email to contest @ hackedgadgets.com with “Name the Thing Contest” as the subject, and the message body consisting of:

  • The name of the item in the above picture
  • An example of what the item pictured above can be used for

The winner will be chosen at random from all of the correct entries.

Below is a picture of the prize.

arduino_sd_card_reader

How OSB is Made

at 7:35 pm. Filed under Insane Equipment

 

We use OSB (oriented strand board) for many building projects these days as plywood is getting more expensive. The process of how it is made is quite interesting.

“Oriented strand board is manufactured in wide mats from cross-oriented layers of thin, rectangular wooden strips compressed and bonded together with wax and synthetic resin adhesives (95% wood, 5% wax and resin). The layers are created by shredding the wood into strips, which are sifted and then oriented on a belt or wire cauls. The mat is made in a forming line. Wood strips on the external layers are aligned to the panel’s strength axis, while internal layers are perpendicular. The number of layers placed is determined partly by the thickness of the panel but is limited by the equipment installed at the manufacturing site. Individual layers can also vary in thickness to give different finished panel thicknesses (typically, a 15 cm layer will produce a 15 mm panel thickness). The mat is placed in a thermal press to compress the flakes and bond them by heat activation and curing of the resin that has been coated on the flakes. Individual panels are then cut from the mats into finished sizes.”

 


Arduino Go-Kart

at 2:15 pm. Filed under Cool Gadgets

  Arduino Go-Kart_

 

This Arduino Go-Kart was built by who is a 15 year old inventor from California. Lots of LED lights on this thing is sure to make it light up great at night. It needs a push start to get it going but once it is rolling the thumb throttle will get it up to speed.

 

“The drive setup uses a Hobbywing Xerun 150A brushless electronic speed controller to control a Savox BSM5065 450Kv motor. Batteries are 3x zippy lithium polymer – 5 cells, 5000mah. The motor has two large fans I pulled out of an old computer for cooling, mounted right over the motor. The chain drive is a 1:10 overall ratio, using a 15 tooth on the motor chained to a 30 tooth on the jackshaft, and a 9 tooth from the jackshaft to a 45 tooth on the wheel. The tires are 10″ diameter so at 20 volts the top speed is around 30 mph. The ESC is controlled via PWM from the arduino. A throttle potentiometer on the steering wheel controls this. Constant current is around 40-50A, and the batteries last around 30 minutes with an average speed of 10-15mph.”

 

Arduino Go-Kart__1

 

Arduino Go-Kart__2

July 23, 2014

Squink – PCB Printer

at 12:39 pm. Filed under Complex Hacks, Cool Gadgets

 Squink - PCB Printer

 

When you are making a new PCB design don’t you wish you could just print out the design instead of sending your Gerbers out for manufacture? BotFactory has created a PCB Printer called Squink, it prints using conductive ink and places dots of conductive adhesive where each SMD part will be placed. Best of all the machine then does a pick and place of all the parts onto the design. The entire process takes about 15 to 30 minutes depending if you want the optional heat curing to be performed. Just think of the ability to spin your board design a few times in a day. Of course this might not be right for everyone. I am not sure what the work around is to incorporate some through hole parts and vias for double sided designs. These days a double sided board is about the same cost as a single sided board but gives you much more flexible trace options without using jumpers.

If you are interesting in playing with this technology you can jump on the KickStarter for $2,999 (only a handful left at this price)

Via: Technabob

 

 

Squink - PCB Printer_2

Internal Links:

Categories:

Search:

Google
Hacked Gadgets
Web

Site Sponsors:

Nuts and Volts Electronic Labs Trossen Robotics Free Technical Publications Blue LED

 

Recent Comments:

Site Rating:

More RSS Feed Options

Site Sponsors:

 

Interesting Sites:

Site Videos:

Incoming Links: