Your Electronics Open Source

I first learned of the STM32 Primer at a technical seminar presented by STMicroelectronics. The STM32 Primer is designed to provide a complete toolset for STM32 that is fun and easy to use. Give it a try and learn about the features of the STM32 and the powerful ARM Cortex™-M3 core.

Texas Instruments' Bill Klein Signal Chain Articles. Given the interest it has provoked the introductive article on "The MIDAS Touch for Signal Chain" , these articles are for the deepening the argument, proposing the presentation of Bill Klein in text format and then introduce a series of articles, written in parallel with Bill and in collaboration with Farnell on "signal chain", already known as MIDAS. So articles about Mixed_signal, Interface, Data_conversion, Amplification and Sensors will be published in the coming days.

Striking Gold in Advanced Analogue From Farnell
Today’s world is heavily reliant upon monitoring and control of a wide variety of physical effects, for example to utilise resources such as energy more efficiently, and to realise improvements in quality of life. Examples of electronic products that are used to achieve these goals include fuel metering and exhaust monitoring systems, medical scanners, portable health monitoring instruments, remote equipment-status monitors, and advanced security systems. Although the complex processing algorithms that make much of this possible are typically accomplished most quickly and economically within the digital domain, the natural world does not follow the digital roadmap defined by Moore’s Law, and with the human desire for faster and cheaper; it remains resolutely analogue in nature. Hence, engineers must continue to address the challenges in accurately sensing signals in the analogue world and delivering these faithfully to a point where they can be converted into the digital domain.

Capacitive Keypad 16 KEYs
Inserted new plan, realized for being placed to edge monitor of a PC and therefore to command 16 access keys. The keyboard is to passing inserted in a buttonhole of the wood of the case of the monitor. Succeeding varies test has been carries out with distance to 1Cm (between finger and keyboard) considering like dielectric the wood interstice.
The KEYs are realized directly on the PCB.

Board image

Interactive video games are becoming increasingly popular. The new "Tilt Sensing Using Linear Accelerometers" application note explains the importance of understanding how to acquire a reliable and accurate tilt reading for accelerometer applications by comparing the advantages and disadvantages of various tilt measurement techniques. Accelerometers used for tilt sensing require high resolution to meet the demands of many new emerging applications, such as motion enabled video games, tilt enabled computer mouse/pointers and PDA-cell phone/mp3 player screen navigation.

Touch sensors are becoming increasingly popular as more interface designs are using touch panel technology. Our MPR081 and MPR082 proximity capacitive touch sensor controllers are designed to offer you a low-cost, reliable alternative to mechanical push buttons for applications like access controls, appliances, mobile phones, MP3 players, PC peripherals and remote controls. Replacing traditional push-button interfaces with touch-sensitive control ultimately makes the interface more intuitive and easier for consumers to use.

Sensors are finding their way into every major market. Freescale is a leading provider of acceleration, pressure and proximity sensors for the appliance, automotive, consumer, industrial and health care markets. The new “Innovative Sensor Solutions” brochure discusses how smarter sensing solutions can be applied to your design. Typical application examples are given. Advanced packaging, integration and the MEMS process technology are also discussed.

Order your copy under document number BRSENSORS or download the PDF.

The new "Measuring Freefall using Freescale's MMA7360L 3-Axis Accelerometer" application note describes using the MMA7360L device as a freefall detection sensor:
* discussion of different freefall scenarios
* detection method used with the MMA7360L accelerometer
* limitations of linear freefall detection

This evaluation kit features the MC33941 proximity sensor that is intended for applications where non-contact sensing of objects is desired. It contains circuitry necessary to generate a low-level electric field and measure the field loading caused by objects moving into the field. The kit allows for designers to easily evaluate the MC33941 in any application, specifically capacitive touch sensing. The connector offers access to all electrodes, enabling you to connect the included touch pad board or any other electrode design of your choosing.