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20 Feb 2015

onion

Onion is launching the Omega, a hardware development board designed for software hackers (especially Web) with limited experience in hardware development. It is a tiny computer (1/5 the size of the raspberry pi) with built-in WiFi and Linux. The Omega allows software developers create hardware projects in familiar environments (ssh, git and npm) and using high-level programming languages they are used to, such as Python, Node.JS, PHP, etc. More importantly, the Omega is fully integrated into the Onion cloud service, allowing hackers to prototype IoT applications very quickly.

Onion Omega – An invention platform for the Internet of Things - [Link]

 

20 Feb 2015

ISS_above

by Liam Kennedy @ kickstarter.com:

Raspberry Pi gadget lights up when International Space Station is nearby with Live HD video from the ISS now with Wearable LEDs

The original version of the ISS-Above was funded through a successful Kickstarter nearly 1 year ago. Since then more than 800 ISS-Above’s have been installed worldwide.

At the heart of the ISS-Above is the lovable and successful single board computer called a Raspberry Pi. Over 5 million of these little computers have been sold worldwide.

The ISS-Above functionality has been drastically improved since the first Kickstarter with some truly remarkable new features – including the display of live HD video views of the earth directly from cameras on the International Space Station.

ISS Above HD+ with Wearable Bluetooth Low Energy LEDs - [Link]

20 Feb 2015

beaglelogic_screenshot1

BeagleLogic turns your BeagleBone [Black] into a 14-channel, 100Msps Logic Analyzer. Once loaded, it presents itself as a character device node /dev/beaglelogic.

The core of the logic analyzer is the ‘beaglelogic’ kernel module that reserves memory for and drives the two Programmable Real-Time Units (PRU) via the remoteproc interface wherein the PRU directly writes logic samples to the System Memory (DDR RAM) at the configured sample rate one-shot or continuously without intervention from the ARM core.

BeagleLogic can be used stand-alone for doing binary captures without any special client software.

The cape essentially consists of a TI 74LVCH16T245 16-bit buffer and associated power-on circuitry that ensures that the buffer does not come in the way of the power-up sequence of the BeagleBone (since the AM335x boot pins are shared with the BeagleLogic inputs). There is also a provision for cape EEPROM support that will be coming up shortly.

BeagleLogic – BeagleBone Logic Analyzer - [Link]

20 Feb 2015

PP-1.preview

Spacewrench over at Dorkbotpdx published a new build, a Power Playground project:

It’s a PMOS/NMOS H-Bridge with FETs that can handle 3 amps or so, plus a SPI current sensor, some switches & a rotary encoder (not stuffed yet), and a 7-segment display, all controlled by a Teensy-3.1 running FreeRTOS.

I made this because I’m always running into battery, power, inductor and transformer issues I don’t have any experience with. The idea is to use the H-bridge configuration and current sensors to experiment with moderate-current PWM, motor control, power-line synchronization, battery charging and discharging, etc.

[via]

Power playground project - [Link]


19 Feb 2015

web-server-esp8266

by Rui Santos @ randomnerdtutorials.com:

If you want to learn more about the ESP8266 module, first read my Getting Started Guide for the ESP8266 WiFi Module. In this project you’ll create a standalone web server with an ESP8266 that can toggle two LEDs.

Why flashing your ESP8266 module with NodeMCU?

NodeMCU is a firmware that allows you to program the ESP8266 modules with LUA script. And you’ll find it very similar to the way you program your Arduino. With just a few lines of code you can establish a WiFi connection, control the ESP8266 GPIOs, turning your ESP8266 into a web server and a lot more.

ESP8266 Web Server Tutorial - [Link]

19 Feb 2015

 

GaNFET

In a world with a growing population and ever-expanding need for energy, achieving more efficient electrical power conversion is crucial, but presents a number of challenges. GaN technology offers a solution, delivering a number of advantages to ensure availability of reliable electric power.

TI’s latest whitepaper explores the role of GaN in the power supply chain. Read up on its advantages over silicon for power supply switching, and technology advancements required to create complete system-level solutions for GaN-based designs.

Delivering efficient, reliable power through GaN – [Link]

19 Feb 2015

FZN5VW2I697PP2V.MEDIUM

by JohnnieT @ instructables.com:

It’s a cnc using Arduino UNO R3 , GCode Sender and GRBL. The cnc is made of wood thanks to the help of my father. It has taken us many hours to do the mechanical part however the electronic part is faster to do, but is very gratifying. I based my project on these videos and I have received much support from the author of the first video.

The total cost of the project is about 450€.

Arduino CNC - [Link]

19 Feb 2015

VL6180X

The VL6180X is the latest product based on ST’s patented FlightSenseTMtechnology. This is a ground-breaking technology allowing absolute distance to be measured independent of target reflectance. Instead of estimating the distance by measuring the amount of light reflected back from the object (which is significantly influenced by color and surface), the VL6180X precisely measures the time the light takes to travel to the nearest object and reflect back to the sensor (Time-of-Flight).

Combining an IR emitter, a range sensor and an ambient light sensor in a three-in-one ready-to-use reflowable package, the VL6180X is easy to integrate and saves the end-product maker long and costly optical and mechanical design optimizations.

VL6180X – Proximity sensor, gesture and ambient light sensing (ALS) module - [Link]

19 Feb 2015

obr1658_1

SosElectronics offers you simply applicable solution of a power LED on a thermal clad in a special offer! 

LXML-PWN1-0100

  • power white SMD LED Luxeon Rebel
  • luminous flux min. 100 lm / 350 mA
  • specified to continuous 700 mA / 3,2 V
  • made on a ceramic base with electrically insulated thermal pad
  • guaranteed lumen maintanance 70% of original value at 50 000 hrs / 700mA / Tj 135°C
  • low moisture sensitivity – JEDEC Level 1
  • dimensions: 4,61 x 3,17 x 2,10 mm

BERGQUIST 803127

  • thermal clad for Lumileds Luxeon Rebel
  • optimal heat transfer from LED to heatsink
  • longer LED lifetime and luminosity thanks to a lower operating temperature
  • star board
  • easy application


Readily usable LED for exceptional price - [Link]

19 Feb 2015

IMG-20150218-WA0004-2-1024x979

by Francesco Truzzi @ b.truzzi.me:

I needed a small, fast and reliable multi-voltage level translator (mainly for connecting ESP8266 boards to the Arduino, got tired of resistor networks pretty quickly) so I built a breakout board for TI’s LSF0204(D).

Datasheet and info here.

The LSF0204 is a nice little chip. It can translate up to 4 signals to and from the following values:

1.0 V ↔ 1.8/2.5/3.3/5 V.
1.2 V ↔ 1.8/2.5/3.3/5 V.
1.8 V ↔ 2.5/3.3/5 V.
2.5 V ↔ 3.3/5 V.
3.3 V ↔ 5 V.

[via]

LSF0204 breakout board: a bidirectional, multi-voltage level converter - [Link]



 
 
 

 

 

 

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