Hacked Gadgets Forum

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:


May 22, 2016

Spring 2016 Cornell University ECE 5760 Advanced Microcontrollers Final Projects

at 8:09 pm. Filed under Cool Gadgets, DIY Hacks, Educational, Electronic Hacks

flowchart

 

It is that time again! There is a new batch of Cornell University ECE 5760 Advanced Microcontrollers Final Projects. If you have done any PID work in the past the FPGA controlled Magnetic Levitation by Gautham Ponnu, Ryan Land, Nathan Spallone should be of interest. They are using a Altera DE2-115 FPGA board to monitor and control a steel ball about 1mm above the position sensor with great accuracy.
“The LDC1000 inductive sensor from Texas Instruments. This device acts as a mini “metal detector” and tells us, albeit in a nonlinear fashion, the height of the ball. The output is nonlinear because it is measuring the presence of metal through inductance, not the direct elevation of the ball from the sensor.”

 

entire_sch

 


May 7, 2016

Bike2 – Chainless Electric Bicycle

at 3:59 pm. Filed under Cool Gadgets

bike2_chainless_bike

 

Interesting concept, lots of the bikes we see today are mechanical bikes first with some add on electronics and motors that make them electric assisted. The motors are normally hub motors that are mounted within the wheel(s). The electronics connect to the brakes to sense when the user is braking and has a throttle to power the electric assist motor. If the battery is dead you are still able to use the bike as a regular pedal power bike. The Bike2  is a true electric bike first and has bike pedals available to simply generate electricity that can charge the batteries. Great concept but I wonder how it feels when the battery is dead or even if you can ride the bike with a completely dead battery. I think a regular bike rider would find it awkward at the beginning since the revolution of the pedals would not correspond with the speed of the bike.

“BIKE2 incorporates state of the art components for uncomplicated great technology at your fingertips (toe-tips), ergonomics and design. The system consists of innovative drive system components and is compact, silent and comes with a programmable interface for different speeds and cadence.
The absense of a chain allows different types of frames and customizable structures.”

 

 

 

May 6, 2016

Digital Caliper Data Plug Build

at 12:14 am. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks

 

Bob over at Making Stuff didn’t want to purchase an expensive cable for his digital calipers, instead he decided to build it. A small 3D printed grooved part with a few connected wires is all that is needed to connect to the data output port of the calipers. A logic level converter is needed to change from 1.5 volt output of the calipers a voltage high enough for a solid logic level 1. Now this can be used as a precision measurement input on a microcontroller project.

 


May 2, 2016

Laser Transmits Audio Over 100m

at 4:24 pm. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks

 

If you are looking to send some data or some audio over a fairly long distance wirelessly you can have a look at this very cheap solution if line of site will work. Iforce2d is using a very inexpensive laser diode and receiver to get the job done. This code is what does the heavy lifting as far as getting the data across the link.

 

 

April 29, 2016

5-Axis 3D Printer

at 10:06 pm. Filed under Cool Gadgets

 

 

Enomoto is developing a 5-Axis 3D Printer which will be for sale in about a year. This will change much in the 3D printing world since there were limitations that were imposed from the regular elevation printing style. Since the platform is able to move the printed piece in any angle very complex parts that were impossible before can now be built.

Via: Hackaday

 

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: