Video Review: STM32F0-Discovery board

The STM32 Discovery boards are nothing new, we’ve looked at them several times. But the newest sibling in the line might be just the thing to make the leap from your steadfast 8-bit projects. We got our hands on it and recorded a video review.

The STM32F0-Discovery gives you a programmer and ARM Cortex-M0 chip all on one convenient board. The top portion is the ST-Link V2 programmer, and includes jumpers and a programming header which let it easily program off-board chips.

The included microcontroller is an STM32F051R8T6 which includes 64kb of program memory and 8kb of RAM. Coming in at $1.80-3.77 in single units and in a hand-solderable LQFP package this raises an eyebrow for our future projects. It has an 8 MHz internal oscillator with 6x PLL which means you can run at 48 MHz without an external crystal (check out [Kenneth Finnegan’s] PLL primer if you don’t know what this is).

The only thing holding us back is the development environment. ST provides everything you need if you’re on Windows, but we want a Linux friendly solution. We know other Discovery boards have worked under Linux thanks to this project. This uses the same ST-LINK V2 so it should work as well. If you want one of your own head over the ST page to see if they’re still giving away samples. There should be a button labeled “Register for your FREE KIT”.

Review and a build: Makey Makey, a banana piano, and Mario

We’ve been getting a lot of emails on the Hackaday tip line about the Makey Makey. This business-card sized circuit board turns everything – bananas, Play-Doh, water, and people – into a touch interface.

There have been a ton of blogs that have written about the Makey Makey Kickstarter and debut at the Bay Area Maker Faire, but Hackaday has been mum on the pending release of the Makey Makey. There’s a reason for that: [Jay] and [Eric], the MIT Media Lab rats who came up with the Makey Makey, offered to send a demo board out to somebody at Hackaday. Well, here’s the review of all the cool stuff you can make with the Makey Makey.

Continue reading “Review and a build: Makey Makey, a banana piano, and Mario”

The Gauntlet: A 1 Watt Laser Module

This is the gauntlet; a place where things are tortured in ways that only an engineer could appreciate.

Today’s victim is a 1.0W green laser module, manufactured by Suzhou Daheng under the brand name “DHOM”.

As far as Chinese laser manufacturers go, Suzhou Daheng is about one rung lower than CNI in terms of quality. Although US companies like Coherent blow these guys out of the water, both are still reputable nonetheless.  As far as Chinese lasers themselves go, this one seems a bit conservatively rated; a nice change from the “1000MW 532nm laser cat toy burning module” that’s not too uncommon on dealextreme and the like.

More after the break…
Continue reading “The Gauntlet: A 1 Watt Laser Module”

chipKIT Uno32: first impressions and benchmarks

Following Maker Faire, we’ve had a few days to poke around with Digilent’s 32-bit Arduino-compatible chipKIT boards and compiler. We have some initial performance figures to report, along with impressions of the hardware and software.

Continue reading “chipKIT Uno32: first impressions and benchmarks”

Hands-on with eZ430-F2013

At the beginning of the Month we came across a coupon code for a free eZ430-F2013 development stick. TI has given these things now and again so we took the opportunity to acquire one. It arrived yesterday and we’ve spent just a bit of time looking it over. Above you can see the first project completed; Hello World on a salvaged Nokia cell phone screen. Join us after the break for our thoughts on the device, as well as more pictures and details.

Continue reading “Hands-on with eZ430-F2013″

Spy Video TRAKR: first impressions

At the Bay Area Maker Faire this past May, we had our first glimpse of Wild Planet’s Spy Video TRAKR, a $130 radio-controlled toy with some surprises under the hood.

On the surface, the Spy Video TRAKR — the latest addition to the popular Spy Gear toy line — is an R/C tank with a video camera and night vision, with the added ability to download new “apps” from the internet for extra functions. With a little detective work, one uncovers the TRAKR’s secret double life: it’s also an eminently hackable robotics platform! Prior Spy Gear toys have been popular hack targets, providing inexpensive, mass-produced sources of unusual items such as head-mounted displays. Rather than throw up barriers, Wild Planet has chosen to embrace this secondary market, with plans to release development tools and documentation making it possible to extend the device’s capabilities.

Read on for our image-heavy unboxing and initial impressions.

Top 5 Twitter Clients For Android

With the growing popularity of the Android OS for smartphones, it has become a contender for the likes of Apple’s iPhone. With the rise of Android came the facet it revolves around; Open Source. Besides it revolving around being open sourced it also has deep roots with social media. There has been an outbreak of different Twitter applications for the Android devices, each with their ups and downs suited for different types of users ranging from the socialite to the power users of twitter. These are the top 5 Twitter clients for Android (A phone running Android 2.1 OS – Éclair – will be used but most of these will be compatible with 1.5 & 1.6 OS and will be stated if they are not available to all OS versions) :

Continue reading “Top 5 Twitter Clients For Android”