Recently, I purchased a power supply that claimed a max current of 2A and 0~15V. So I wanted to test it. I had a 36 watts bulb (used in motor cycles), but that was too much. Then, I thought of the dummy load that is explained by Dave in his video blog. My version is […]
Dummy electrical Load Read More »
The Product: Sol-X developed the GDB to be the best open source prototyping platform on the market and we intend it to replace the Arduino Uno® as the preferred high-level prototyping environment. It is up to 40x faster, 70% smaller, has integrated high power drivers (capable of handling 12x the current), with more flexible Input
An open source,faster,better prototyping standard Read More »
For relatively small (less number of pins than ATmega328) projects, ATtiny series, ATtiny45 or Attiny85 are good choice in terms of its physical size (8-DIP or 8-SOIC) and low power consumption. There are many ways to program it. One of the popular device is USBtinyISP and DASA. Both of them work very well with WinAVR
ATtiny programmer using Arduino ISP Read More »
A collaboration of biologists, engineers, and material scientists at Brown University has found that jagged edges of graphene can easily pierce cell membranes, allowing graphene to enter the cell and disrupt normal function. Understanding the mechanical forces of nanotoxicity should help engineers design safer materials at the nanoscale. PROVIDENCE, R.I. [Brown University] — Researchers from
Jagged graphene can slice into cell membranes Read More »
CHAMPAIGN, Ill. — Though they be but little, they are fierce. The most powerful batteries on the planet are only a few millimeters in size, yet they pack such a punch that a driver could use a cellphone powered by these batteries to jump-start a dead car battery – and then recharge the phone in
New Battery Technology Charges 1000 Times Faster Read More »
Aesthetic and relatively massive enclosures from company Fastron are the novelty able to provide an attractive look to your devices. Metal enclosures are a stable part of our offer. We usually choose them, when wanting to produce a device with a higher mechanical rigidity or with a higher resistance to disturbances (EMI shielding) but even
Fastron – metal enclosures with fluent shapes Read More »
Lithium-ion batteries are sensitive to bad treatment. Fire, explosions, and other hazardous condition may occur when you charge the cell below the margin that the manufacturer defines. Modern battery chargers can manage the hazardous conditions and deny operation when illegal situations occur. This fact doesn’t mean, however, that all cells are bad. In most cases,
Simple circuit indicates health of lithium-ion batteries Read More »
This Instructable is about dry film solder mask, in other words, is the green stuff that is on top of the circuit board. I like to use smd components in my circuits board because I don’t have a computerized drill machine and do in it by hand for a big boards are really tedious. Soldering
Dry Film Solder Mask Read More »
If you like this instructable, please vote for it! For my off-grid Ham Radio and Solar projects, I needed a way to measure volts, amps, watts, amp hours and watt hours. There’s a couple of commercial products that can do this, but not with the flexibility I wanted. I designed a Arduino micro-controller based solution
DIY Amp Hour Meter – Arduino Read More »
Rechargeable NiCd (nickel-cadmium) cells are widely used in consumer devices because of their high energy density, long life, and small self-discharge rate. As a part of one project, I needed to design a reliable and inexpensive charger for a battery pack containing two NiCd AA-size 1200-mAh cells. In the process of the charger design, I
Charge a nickel-cadmium cell reliably and inexpensively Read More »
