element14 is proud to offer an advanced “first look” at the next-generation BeagleBone – one of the most popular open source hardware platforms developed. The new BeagleBone boasts even more memory and higher performance than previous generations. Availability is slated for the April timeframe, but students and hobbyists can register thier interest in receiving a […]
element14 offers sneak preview of next-gen BeagleBone Read More »
Linear Technology Corporation announced the LT8705, a very high efficiency (up to 98%) synchronous buck-boost DC/DC controller that operates from input voltages above, below or equal to the regulated output voltage. This device has four feedback loops to regulate the input current/voltage, along with the output current/voltage. The input current and voltage feedback loops can
Convert any input voltage from 2.8V to 80V into a fixed output voltage or output current Read More »
Weller WX series enjoys your favour, that´s why we added another types to our standard offer. We´re pleased, that you appreciate excellent features of inteligent soldering stations, which we introduced to you for example in the article Weller WX soldering stations are a masterpiece. That´s why already several types of the WXseries can be found
We enlarged our offer of Weller WX soldering stations Read More »
Whenever I want to see why a download is going a little slow or getting lag on an online game I’d have to log in to my routers web page or SSH in to see if its someone else in the house downloading/uploading, the net connection going wonky or just the server, this was a
Bluetooth Net Monitor Read More »
AVRDUDESS is a GUI for AVRDUDE, a tool for programming Atmel microcontrollers. Some key features: Supports all programmers and MCUs that AVRDUDE supports Supports presets, allowing you to change between devices and configurations quickly and easily Drag and drop files for easy uploading Automatically lists available COM ports Downloads avrdudess_20130217.zip (1.15 MB) Downloaded 141 times
AVRDUDESS – A GUI for AVRDUDE Read More »
Using a reflow oven (custom made), I was able to assemble the bluetooth watch board with the system on chip (SoC) part, lithium ion battery charger, LEDs, connectors, etc. This board is the main board doing the signal processing and Bluetooth 4.0 Low Energy radio transmission of the heart rate data to a smartphone. The
Prototype of Pulsar Heart Rate Watch Board Read More »
This is a great video of Alan Wolke talking about op-amp power supply options. He explains the differences when using op-amps on a single supply, a split (or bipolar) supply and virtual ground. This video discusses the power supply considerations for op amps. It talks about split or dual power supply and single supply operation,
Op Amp Power Supplies: Split, Single, and Virtual Ground Designs Read More »
What I came up with is the Lira. It is, as you will see, little more than a breakout board for the ATmega328, but it provides all the bare necessities like voltage regulation, basic power conditioning and an FTDI programming interface. It’s the smallest, simplest, cheapest design I could come up with that still uses
Lira: A Barebones, Low-Cost, Arduino Compatible Atmega328 Breakout Board Read More »
Getting started The design I am testing is based on the Linear Tech LTC3731 three-phase synchronous buck controller. An example circuit from the data sheet is shown below. I am shooting for similar values, but this diagram shows the components of interest. A more detailed diagram of the control loop can be found in the
Stability Testing a Switching Power Supply Read More »
Common methods of reverse-voltage protection employ diodes to prevent damage to a circuit. In one approach, a series diode allows current to flow only if the correct polarity is applied (Figure 1). You can also use a diode bridge to rectify the input so that your circuit always receives the correct polarity (Figure 2). The
Simple reverse-polarity-protection circuit has no voltage drop Read More »
