Hacked Gadgets Forum

June 26, 2016

DIY Smart Glasses

at 7:31 pm. Filed under Cool Gadgets, DIY Hacks

DIY Smart Glasses

 
HARRIS’ ELECTRONICS is developing a prototype set of Smart Glasses. This is not an easy task! You can read about the development challenges here.

Thanks for the tip James.
“The glasses themselves are based around an STM32F051K8 microcontroller (LQFP32 for easy soldering!). All the firmware is custom written though I got the LCD driver initialization codes from the BuyDisplay examples. The firmware is written using a somewhat “co-operative scheduling” with interrupts methodology and for most of the time, the microcontroller is sleeping until something needs to happen. Along side all the Bluetooth and LCD software, I’ve included my SoftTouch library for the two touch buttons on the side of my glasses. These are used to change screens and change items within the screen e.g. move to the next news entry.”

 


June 17, 2016

Custom Word Clock

at 1:28 pm. Filed under Cool Gadgets, DIY Hacks

Custom Word Clock_1

 

Jeremy Blum built this Custom Word Clock. It has lots of non electronic parts such as the great looking case. Good thing Jeremy is no longer at Google and is now working at Shaper with use of a wood working shop. We have seen lots of word clocks here in the past but the main thing I like with this design is the LED panel based design. Most designs use either individual LEDs or addressable LED strips to provide the illumination, with the panel method it removes this large headache.

“I wanted to control the whole thing with a Raspberry Pi and Python. Why? I want to be able to use the clock as a platform for Leah and I to do some Python hacking. This word clock functions fine without an internet connection, but using a Pi makes it easy to hook up to the web for adding future features like a web interface to set an alarm clock – future expansion options! ”

 

 


June 12, 2016

Water Droplets Captured using a High Speed Camera Rig

at 6:37 pm. Filed under Cool Gadgets

doubledriparticle-19

 

 

Check out these Water Droplets Captured using a High Speed Camera Rig. This system uses an Arduino to activate a solenoid, the solenoid releases a drop from a water container mounted at a specific distance above the table. The water falls at a repeatable rate, at the desired time the system triggers a camera flash. This allows a camera that is focused on the hit zone to capture some fantastic effects of the water drop splashing down.

 

doubledriparticle-7

 


June 7, 2016

Introduction to Analog to Digital Conversion (ADC)

at 2:01 am. Filed under Cool Gadgets, Educational

 

Bil Herd goes through a great Introduction to Analog to Digital Conversion. These days it is very simple to grab an analog reading and use it with a microcontroller with ease. This is because modern microcontrollers often have one or many ADC built in. Not that long ago a  would have been needed, this is still the case if a special ADC is needed for things such as high precision or very fast acquisition. Below you can see some items from the Microchip PIC 16 line of microcontrollers. This is just showing about a 5th of the available chips that can do ADC and it is sorted from cheapest to most expensive. Doesn’t take long looking at this chart to see that you can really get some big bang for the buck here. In volume the PIC 16F18323 will cost about $0.57 and this 14 pin count chip will give you 11 ADC inputs at a max resolution of 10 bits.

 

Microchip_ADC_Chips

 

 

 

 

 

May 29, 2016

18 Year Old Computer Collector Buys a IBM z890 Mainframe

at 4:00 pm. Filed under Computer Hacks, Insane Equipment, Vintage Electronics

 
At 18 years of age he has already been collecting for years. Most of his collection are things like Commodore and Apple computers. These can sit on a shelf and be moved around with ease. When he saw an IBM z890 Mainframe up for grabs he jumped on it. With a bit of excavation he was able to get it into his parents basement.

 


May 28, 2016

IOT Long Runtime

at 6:18 pm. Filed under Cool Gadgets, DIY Hacks, Educational, Electronic Hacks

 

 

With the adoption of IOT long runtime on battery power is something that is a huge concern. We don’t mind charging our smartphones daily but if we have a dozen IOT devices in our home we would like them to be invisible and just operate for as long as possible without needing attention. Andreas Spiess has done some research using the popular ESP8266 and a variety of batteries. In his test he was sending data to an IOT database every 2 minutes but for many cases you may only need the device to wake and transmit once per hour, this would greatly extend the battery life.

 

 

 

 

May 25, 2016

Huge Welder, High Current Tester

at 7:15 pm. Filed under Cool Gadgets

 
John Ward shows us his new test device. Not exactly a bench mounted piece of gear! This Oil Filled Oxford Welder can be used in cases where you need to pump out some serious current, this is ideal to test to destruction items such as wires, extension cables, plug in connections etc. JW has performed many of these tests in the past. Photonicinduction has taken a look at the inside of one of these in the typical over the top fashion. This thing is built like a tank, not sure what the working duty cycle is but I wouldn’t be surprised if it wasn’t 100% at most settings.

Power cords typically use copper as the conductors, the copper would represent a large portion of the cost so if a company wants to shave some of the production cost down goes the conductor diameter. Check out the junk power cord that John Ward tests to destruction below.

 

 

Typical test that this welder can be used for:

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: