Parallax has released Propeller GCC Beta!
Welcome to the beta test of Parallax’s Propeller GCC compiler for the P8X32A Propeller chip. The Propeller GCC Compiler tool-chain is an open-source, multi-OS, and multi-lingual compiler that targets the Parallax Propeller’s unique multicore architecture. Parallax has hired industry experts to develop all aspects of the toolchain, including the creation of a new development environment that simplifies writing code, compilation, and downloading to a Propeller board. The C and C++ compiler tools provide a significant benefit to Parallax customers who use our Propeller multicore processor. Using the Large Memory Model (LMM) and Extended Memory Model (XMM) gives the developer the ability to write C or C++ programs that run faster than Spin or exceed Spin’s 32 KB program size limit, respectively. Additionally, Parallax will be publishing tutorials on learn.parallax.com to provide experience to new developers interested in learning how to develop embedded applications in C or C++. All of this effort will immediately roll into developing compilation tools for Parallax Semiconductor’s long awaited Propeller 2 when it is released.
Parallax Releases Propeller GCC Beta - [Link]
The Kinetis L Microcontroller board from Freescale. The board features a Cortex-M0+ ARM processor, a suspiciously familiar minty-fresh board silhouette, and headers that remind me of summers in Ivrea. From EDA360: [via]
There are two major reasons for reading this blog post:
A 32-bit microcontroller that sells for as little as $0.49 in 10K quantities and consumes 50µA/MHz
A $12.95 development board to be available late in September
These are two of the salient attributes of the Freescale Kinetis L microcontroller, previewed at Design West in San Jose back in March and now announced at the Freescale Technology Forum in San Antonia with alpha samples shipping. The target for this product is the vast sea of products and applications that currently incorporate 8- and 16-bit microcontrollers—mainly for reasons of legacy code, legacy familiarity, and cost. It will take a compelling product to hurdle these barriers and the low prices for the Kinetis L silicon and development board will help to jump those hurdles.
Freescale Announces $13 ARM Cortex-M0+ Microcontroller Board - [Link]
Schurter 5500.0655.1 line filter will enable it to you and provides an universal usage, independent on the type of the of the inlet power socket used in your device.
It is necessary to use an input line filter in almost every device. At its choosing, you have a possibility to use a filter combined with an input line socket , or a standalone, most often designed for PCB mounting.
Thanks to a big amount of various electric devices with a non-linear power consumption, the line voltage sinusoid is far distant from a clean form found in books of mathematics. Despite still more stringent EMI and EMC regulations, it is necessary to use line filters – also thanks to the fact, that modern digital circuits with a very low power consumption are potentially more sensitive for disturbances. A similar situation is at analog circuits, where more sensitive circuits are used (amplifiers, AD and DA converters, …). A usage of a filter brings two benefits – a better protection of a device from disturbances and also prevents a noise leakage from your device to a mains line.
A novelty in our portfolio is the Schurter 5500.0655.1. line filter for PCB mounting. Advantage of the PCB version is, that it doesn´t require a space on your device´s rear panel. With a maximum current of 6A, it is suitable even for relatively powerful devices. In the Schurter 5500.0xxx datasheet can be found detailed graphs about the filter attenuation in a common, as well as differential mode. For highest demands regarding EMC, it is possible to equip the filter with a metal shield.
Afford to your devices an undisturbed operation - [Link]
Rajendra Bhatta writes:
The 12F series of PIC microcontrollers are handy little 8-pin devices designed for small embedded applications that do not require too many I/O resources, and where small size is advantageous. These applications include a wide range of everyday products such as hair dryers, electric toothbrushes, rice cookers, vacuum cleaners, coffee makers, and blenders. Despite their small size, the PIC12F series microcontrollers offer interesting features including wide operating voltage, internal programmable oscillator, 4 channels of 10-bit ADC, on-board EEPROM memory, on-chip voltage reference, multiple communication peripherals (UART, SPI, and I2C), PWM, and more. The following project board is designed for fast and easy development of standalone applications using PIC12F microcontrollers. It features on-board regulated +5V power supply, header connectors to access I/O pins, ICSP header for programming, a reset circuit, and small prototyping area for placing additional components.
PIC12F microcontroller project board - [Link]
Publitek European Ed writes:
Daylight harvesting is becoming increasingly important in the design and implementation of commercial lighting systems. Being able to integrate the natural light from windows with flexible, controllable sources of lighting helps improve the work environment and cut energy bills.
Being able to have closer control of the lighting systems in a commercial environment is a key element to this strategy and energy harvesting can play an important role. Being able to have flexible placement of control pads for a commercial lighting system is an important requirement as office space is regularly reconfigured as existing clients grow and change their requirements and new clients have new requirements.
Smart Lighting in the Enterprise - [Link]
Jack Shandle writes:
LED-based lighting has many advantages including a small footprint, exceptionally long lifetimes and excellent lighting efficacy in lumens per watt. As LEDs have become popular, the challenges of designing with them have become more evident – with thermal management topping the list.
The challenge begins with the source itself. High-powered LEDs do not generate infrared radiation, which is the primary way competing light sources dissipate energy that is not visible light. Instead, 75 to 85 percent of energy used to drive an LED is converted to heat, compared to 42 percent for a typical linear fluorescent, 37 percent for a metal halide bulb, and only 19 percent for an incandescent light source. In LED-based system designs, this heat must be conducted from the LED die to heat sinks, the circuit board, housings or luminaires. In addition, power dissipation in other parts of the system, such as the power supply, must be minimized.
ABCs of LED Thermal Management - [Link]
Recently I found a cheap used PS3 at a local Game and Trade that was closing its doors. It’s the older “fat” 80GB model. Everything was in pretty good condition except for the controller. It was obviously the store demo controller and thus was unbelievably disgusting. I had to handle it with gloves on. I entirely disassembled it and disinfected every part of it.
Fixing a PS3 Controller that Won’t Charge - [Link]
Electrical engineers of the University of Princeton are working on a cheap solar-powered charging system that can be printed on plastic and that transfers the produced electricity wirelessly. The solar cells are made from amorphous silicon (a-Si), a non-crystalline form of silicon. Crystalline silicon (c-Si) is much more efficient when it comes to converting sunlight into electricity but a-Si has the advantage that it can be processed at much lower temperatures (75 °C against 300 °C for c-Si), allowing it to be printed on plastic sheets.
The electric circuit is made out of the same material as the solar cells. And although a-Si has a lower electrical performance than c-Si, when it comes to producing cheap electricity-generating plastic sheet which can be put up anywhere, a-Si is best. By making the charging system available at a large scale, the Princeton engineers aim to have wireless electricity everywhere. [via]
Omnipresent Sun-Powered Wireless Charging Stations - [Link]
IRVINE, CA — June 19, 2012 — Open Source RF, a new venture dedicated to serving Arduino users by making high-quality, creative products for the Maker, DIY and Open Source communities, today announced it is releasing a plug and play wireless Shield for Arduino.
The Wireless Inventors Shield makes any Arduino project wireless instantly even in high-traffic areas. Using a reliable wireless RF module, the Shield allows users to easily send and receive error-free data between two or more Arduino boards.
Arduino is an open source electronics prototyping platform based on flexible, easy-to-use hardware and software. It is intended for artists, designers, hobbyists and anyone interested in creating interactive objects or environments.
The Wireless Inventors Shield has been tested at ranges in excess of 500 feet (150 meters); it is plug and play and error free, featuring built-in forward error correction and data recovery so users receive only cleaned and cyclic redundancy checked (CRC) verified data; and it is simple to use in that inputted data is wirelessly transmitted then cleanly received on the opposite end. Read the rest of this entry »
Open source application for charting data sent via RS-232 port in real time.
SerialChart – Analyse and chart serial data from RS-232 COM ports - [Link]