Floating-point MCU operates at up to 210 C

Texas Instruments has launched a floating-point microcontroller (MCU) for operation under extreme temperature conditions from -55 °C to 210 °C, which it says is an industry first and exceeds the traditional 150 °C limit for high-temperature semiconductors devices.

Floating-point MCU operates at up to 210 C – [Link]

Elektor PCB Prototyper

A compact, professional PCB router for producing complete PCBs quickly at very high accuracy. The PCB Prototyper is an ideal tool for use not only by independent developers of electronics but also in laboratories, workshops, schools and colleges where prototype PCBs have to be developed quickly. The Elektor PCB Prototyper eradicates waiting for boards from large PCB manufacturers — instead you can instantly make your own PCB in-house, drastically cutting product development time. More info at http://www.elektor.com/prototyper

Elektor PCB Prototyper – [Link]

Chips to repair themselves

Researchers of the CRISP (Cutting edge Reconfigurable ICs for Stream Processing) consortium, a team of four companies and two universities in The Netherlands, Germany and Finland demonstrate a self-testing and self-repairing chip at the DATE2011 conference in Grenoble. CRISP developed new concepts for run-time resource management to attain the goal of self-repair: while in operation, the chip tests cores and connections, and a resource manager dynamically assigns the chip’s tasks to fault-free parts.

Chips to repair themselves – [Link]

Digitally controlled power supply

Here’s a design for a digitally controlled power supply: [via]

I’ve built quite a few power supplies over the years; it’s an almost vital tool for electronics. It’s been my plan to built one which would drop the analog potentiometers in exchange for digital control with a microcontroller. There are many advantages to it as well as disadvantages but I believe it is worth the effort.

Digitally controlled power supply – [Link]

App note: Long twisted pair reads digital temperature sensor

This digital temperature sensor design uses a twisted cable pair to read the sensor over long distances: [via]

This circuit is a simple and economical interface for remote IC thermal sensors. The temperature sensor (MAX6576), an absolute temperature-to-period converter that integrates the sensor with the necessary signal electronics, connects to the receiver (a MAX9140 comparator) using a twisted-pair cable that carries power to and signals from the sensor.

App note: Long twisted pair reads digital temperature sensor – [Link]

Video intro to 8-bit PIC microcontrollers

Element14 has posted this online product training video as an introduction to Microchip PIC 8-bit microcontrollers. A good way for newbies to take their first steps using this inexpensive line of chips. [via]

Video intro to 8-bit PIC microcontrollers – [Link]

555 based FPGA/CPLD debugging oscillator

Randomgarfield from fromorbit posted the above video, depicting his use of a 555 timer as a small oscillator tο clock CPLDs whіƖе debugging a small state machine. [via]

I needed a variable slow speed clock to help me debug a design I’m creating with a bunch of CPLDs. Given the current focus on the venerable 555 timer IC, I thought rather than using my usual AVR/PIC solution I’d create something with the handy little timer.

555 based FPGA/CPLD debugging oscillator – [Link]

DS3231 – High precision real time clock with built in oscillator

adafruit.com writes:

In honor of the new chronodot, we’ve put the brains behind the chip (The maxim DS3231) into our partfinder! This is a high precision ‘big brother’ to the DS1307. It has a built in temperature compensated oscillator so that its very precise. They are a bit chunky but good when you want to really keep track of time and cant integrate a GPS module.

DS3231 – High precision real time clock with built in oscillator – [Link]

Controlling Arduino with PHP in Ubuntu

Controlling Arduino with PHP in Ubuntu. Bushveldlab writes: [via]

I’d like to share a fun little example I’ve been fiddling around with over the weekend while attempting to get to grips with PHP. A few weeks ago, I decided to take the plunge and dedicate some quality time learning the basics of Ubuntu and dynamic web programming using Apache, mySQL and PHP. To keep things interesting, I’ve been looking for good practical examples to play with. The first mini-project was to get PHP talking to Arduino so that I could use a basic web page to toggle Arduino’s on-board LED on pin 13 on and off.

Controlling Arduino with PHP in Ubuntu – [Link]