Fresh hacks every day
The rig pictured above works as an Internet connected temperature sensor which sends [Zaion] an email with a graph of the change over time. This in itself is interesting, but one part in particular caught our eye. He's using an i2c temperature sensor , and we think the PCA9517 Level-Translating I2C Bus Repeater that makes it possible is a perfect match for the RPi. This is a Texas Instruments … [Read more...]
Much to the chagrin of hardware tinkerers, the Raspberry Pi doesn't have analog inputs on its GPIO pins. Sure, you can blink a LED with just a few console commands, but reading sensors with a bone-stock Raspi requires a little additional hardware. [Brian Dorey] just released a board that allows for 8 analog inputs on the Raspberry Pi with a 16-bit resolution that is much higher than any … [Read more...]
This work clock functions in an unexpected way. With each passing second it displays a random four letter word on the right side of the display. Traditional word clocks tell the time in natural language, but this one is simply used as a learning opportunity. [Iron Jungle] got his hands on the display for just five buck from Deal Extreme. Looks like the price has gone up two dollars but that's … [Read more...]
The folks at Adafruit are busy as a bee working on bringing some of their really cool boards to the Raspberry Pi platform. Here's a few that came in over the last few days: 16 servos is almost too many Servos require a PWM output but the Raspi only has hardware support for PWM on a single GPIO pin; certainly not enough to build a gigantic, city-leveling robot. [Kevin] over at Adafruit put … [Read more...]
[Brian Dorey] has been adding green power solutions to his home for some time now, and as things have progressed, he has experimented with several different iterations of data loggers. The latest system watching over his solar power setup is a Raspberry Pi armed with a custom-built I2C analog/digital converter. The Rasp Pi is responsible for monitoring several different temperature sensors … [Read more...]
When [Phil Burgess] showed off a few I2C - controlled seven-segment displays on adafruit's weekly vlog, the comments immediately turned to the time circuits featured in everyone's second-favorite time machine, the Back to the Future DeLorean. The time circuits are now active, so now you can easily add a temporal display to your car well before a hover conversion. [Phil] used these LED … [Read more...]
It usually takes a bit of work to gain confidence when it comes to using new parts. [Glitch] got his hands on this OLED display which is manufactured by Sabernetics and wanted to give it a whirl before building a project around it. He grabbed his Bus Pirate to help learn the ins and outs of the new part. The 96x16 Dot-Matrix display uses the i2c protocol, keeping the pin count really low (six … [Read more...]
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