Georg Simon Ohm, a German physicist, demonstrated proportionality between current and voltage, thus defining resistance (this rule was named after him as Ohm's law).
When working in the embedded world there are some chances that you will come across an application requiring greater memory storage space than is available in most microcontrollers and even external EEPROMs. That's why SD or MMC cards are great.
Usually a traditional control system requires a regulated power supply (5V/3.3V), controlling the lighting loads via an opto-coupler. Another approach is interfacing the microcontroller directly to the main supply. Philips Semiconductors/NXP released several application notes for the latter approach, which was named as easytriac. It allows a low-end microcontroller to be embedded into the casing of each incandescent, CFL or LED lamps.
Resistors are the most used passive electronics components. Even if they are the most common and cheap components in the market, they are not known enough for their peculiarities and for their role in the electronic area.
This article is full of sources that can help you to design an ARM for your embedded application. You'll find all the software and hardware tools you need.
CE Marking (which includes EMC - Electromagnetic Compatibility) has been introduced in order to unify the products security features used in CEE countries. In this article you'll find some EU directive.
An analog-to-digital converter (ADC, A/D, A to D) is a device which converts continuous signals to discrete digital numbers. The reverse operation is performed by a digital-to-analog converter (DAC). [from Wikipedia]. ADCS7476 (datasheet), ADCS7477, and ADCS7478 are monolithic CMOS 12-, 10- and 8-bit analog-to-digital converters.
In the world we live today, the cost is considered one of the most important characteristics of a product. No wonder then, keeping production costs down is an important part of the manufacturing of a product. This concept has also been extended over the development costs. In many cases, especially for projects which pioneer a specific filed of electronics, the development costs represent a significant part of the final price of a product. Keeping them down would obviously make the managers happy and win a pat on the back for the engineers (stop hoping for a pay raise!)
A capacitor fails when it no longer meets the application requirements. A capacitor can fail for many causes... so let's have a look to the failures and to the parasitic effects too!
The NE555 (datasheet) is a stable controller which includes 23 transistors, 2 diodes and 16 resistors. LM555/NE555/SA555 was called The IC Time Machine.
The LED is probably one of the most spectacular effects of electronics, and at the same time, a most basic component, with a wide variety of applications. Many people know the joy of turning on their first LED and then turning it off, while the LED blinking application is like the “hello world” of electronics (and it has been for some decades now).
The real world, where we live day by day, is the realm of analogue signals. Read this overview about ADC (Analog to Digital Converter) and DAC (Digital to Analog Converter)
ARM is by now as God - it is in everything: in our mobile phones, in our GPS, PDA or in our laptops. Let's see a list with 50 products that use ARM Linux technology.
Starter Kit is very useful to learn and develop software on ARM. I merged Starter Kit and OEM module information, because all OEM modules supplier will offer corresponding Starter Kit or evaluation board for design startup.
Fancy to know how to: connect a PIC microcontroller (PIC micro) to a TELIT module, set up the GSM Module to handle SMS. And much more.... Looks juicy, so what are you waiting for?
For an embedded system with USB that requires recharging of Lithium batteries there are many considerations to be made before you can safely, accurately and quickly recharge the batteries.
PicNET2 allows to develop a DIY domotic network with easy-to-use and cheap devices. I wanted to make possible the communication between the little devices (the well-known PIC) in a simple, safe and cheap way so the idea was born.
We use the USB mass storage devices everyday, such as USB hard disk, USB stick, USB flash card reader, CD/DVD, mobile devices. Those devices are commonly found in our life, until I got the STM32 evaluation board from a local supplier.
The PIC32 micro development boards are designed for learning how to program PIC32 micro applications and for developing PIC32 micro-based projects. The ready-to-use development kits, with fully integrated debugger, are great for everyone just getting started with dsPIC C-programming (like me!).
The Network-Attached Storage or NAS was designed for the enterprise file sharing services. Now the consumer NAS (Network-attached Storage) has integrated many additional features including BT/eMule downloading, digital media server and video surveillance.
FIFO (First In, First Out) is an abstraction in ways of organizing of data relative to time.
Queues are usually despised, being considered a waste of time, either when waiting in front of a cinema for a movie show, or when in a bank to withdraw a check.
Howto interface an Analog to Digital Converter (ADC) to the FPGA board. In this post I will give some ideas about interfacing an ADC to the FPGA design. One of the Digilent Inc.’s product is the ADC module codenamed Pmod-AD1.
The G1 doesn’t officially hit the streets until tomorrow, but the 3rd and Market store in San Francisco will begin selling the first Android device starting today at 6PM PDT.
Be honest: who has never dreamed to become invisible? To go everywhere, to look at everything without being seen, just a dream. The invisibility is a subject of comics (the invisible woman in the Fantastic Four for ex.) and movies (the cloak used by Harry Potter to be hidden from the enemies).
Before adding serial communication to your design, let’s say adding a serial eeprom, you should have an understanding of the different types of serial communication that you can use. There are two main protocols to consider, SPI protocol and I2C protocol.
Cheap Surveillance Camera System [DIY] is another project I am working on. I plan to build a low-end surveillance camera with lowest BOM cost. The camera module is made up of a LPC21XX microcontroller, a serial camera. The image information that comes from the camera is encoded in JPEG, which can be stored directly into a SD card.