Wireless remote display

Abstract. For a while now the Pilogger needs a small remote display. The logging station is neither particularly compact nor elegant, therefore I made some tests about a battery powered status display. I tried solutions which I never used mainly by curiosity but also in order to continue to learn something. Especially the Wifi chip ESP8266 and a […]

via Wireless remote display — About using electronic stuff

Wireless remote display

Hackaday Prize Entry: Open Sip And Puff


Hackaday highlights Jason Webb’s impressive assistive technology project:

Hackaday Prize Entry: Open Sip And Puff

A sip-and-puff device is an assistive technology used by people who cannot use their hands. Being a quasi-medical device, you can imagine this technology is extremely expensive, incapable of being modified, and basically a black box that can’t do anything except what it was designed for.

 

Hackaday Prize Entry: Open Sip And Puff

Sega Genesis Chiptune Synthesizer

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Jarek Lupinski created this board that uses the actual Sega Genesis sound chips to play chiptune files:

Sega Genesis Native Hardware Chiptune Synthesizer

The VGM file format stores instructions for sound chips, and VGM files for many popular games can be found online. An Atmega1284p microcontroller will read these VGM files from an SD card and translate them into signals to send to the onboard YM2612 and SN76489 chips. These chips were used by the original Sega Genesis hardware to make the sound effects and music in Genesis games.

Sega Genesis Chiptune Synthesizer

Hackerbot Labs autonomous boat

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Pierce Nichols and the Hackerbot Labs team are building an autonomous boat capable of doing sonar surveys of dive sites:

Hackerboat

An autonomous boat of unusual size

Screenshot from 2016-08-26 18-48-39.pngPierce recently wrote about the latest news from the project:

Hackerboat Progress

Hackerbot Labs autonomous boat

Teensy E-Paper shield

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Jarek Lupinski created a Teensy 3.x shield for e-paper displays:

Teensy E-Paper Adapter Board

E-Paper is not a simple display to drive. With manual temperature compensation, onboard power regulation requiring external capacitors, and setting up a step-up circuit, there are many factors to consider when working with this display, with the large benefit of not requiring any power to maintain its image once written.

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I have created the simplest possible circuit necessary to drive the Pervasive Displays E2215CS062 , available from your favorite distributor. Certain parts from the reference design were substituted with US-available equivalents with assistance from the Pervasive Displays engineering team.

 

Teensy E-Paper shield

Books You Should Read: The Soul of A New Machine

We wholeheartedly agree with Hackaday!

If there was one book that describes what it means to be in the trenches of a cutting edge design, that book is The Soul Of a New Machine. Tracy Kidder’s Pulitzer prize-winning book has been an inspiration to thousands over the years. Soul is the story of the creation of the Data General Eclipse…

via Books You Should Read: The Soul of A New Machine — Hackaday

Books You Should Read: The Soul of A New Machine

DIY Vector Network Analyzer

What to do when a piece of test equipment is too expensive?  Henrik Forstén decided to design and build his own:

Cheap homemade 30 MHz – 6 GHz vector network analyzer

Vector network analyzer (VNA) are used to measure scattering parameters of high frequency circuits

Since I can’t afford even a used VNA I decided to make one myself with a budget of 200€, tenth of what they cost used and about 1/100 of what they cost new

The design files and source code are available on GitHub:

 

 

DIY Vector Network Analyzer

Hackaday: Infrared Targeting On a Small Scale

Sometimes, a person has a reason to track a target. A popular way to do this these days is with a camera, a computer, and software to analyze the video. But, that lends itself more to automated systems, like sentries. What if you want to be able to target something by “painting” it with a…

via Infrared Targeting On a Small Scale — Hackaday

 

Hackaday: Infrared Targeting On a Small Scale