[Frank Buss] designed an electronic version of a sticky note: a WiFi enabled, solar-powered ePaper, with magnets embedded in the casing. It’s based on the new ESP32, and the idea is that you can update it via your smart-phone or over the internet via a cloud app to show any message you want. Being an…
Raindrops on roses, and whiskers on kittens? They’re alright, I suppose. But when it comes down to it, I’d probably rather have a bunch of 4051, 4052, and 4053 analog multiplexers on the component shelf. Why? Because the ability to switch analog signals around, routing them at will, under control of a microcontroller is tremendously…
We think of helping hands as those little alligator clips on a metal stand. They are cheap and fall over, so we tend to buy them and don’t use them. However, if you are willing to put $35 or $40 into it, you can get the newer kind that have–well–tentacles–on a heavy base. [Archie_slap] didn’t…
From Brian Benchoff on Hackaday:
Before there were samplers, romplers, Skrillex, FM synths, and all the other sounds that don’t fit into the trailer for the new Blade Runner movie, electronic music was simple. Voltage controlled oscillators, voltage controlled filters, and CV keyboards ruled the roost. We’ve gone over a lot of voltage controlled synths, but [Tommy] took it to the next level. He designed a small, minimum viable synth based around the VCO in an old 4046 PLL chip
The circuit for this synth is built in two halves. The biggest, and what probably took the most time designing, is the key bed. This is a one-octave keyboard that’s completely 3D printed. We’ve seen something like this before in one of the projects from the SupplyFrame Design Lab residents, though while that keyboard worked it was necessary for [Tim], the creator of that project, to find a company that could make custom key beds for him.
Read more on the F0 on Tommy’s blog:
Say hello to the F0: a minimalist, analog, square wave synthesizer.
We had a great time last year and recommend folks at Maker Faire Bay Area 2017 come to this Saturday night meetup hosted by Hackaday and Tindie:
It’s Maker Faire Bay Area time of year again and we’re holding our 4th annual Hackaday and Tindie MFBA Meetup!
After a ridiculously fun Saturday at Maker Faire, carry on the festivities with us at O’Neill’s in San Mateo on Saturday night from 7pm.
Bring your finest blinky, flashy, IoT, hacks, wearables, or other techy items for us to paw. Bonus points if you bring your #HackadayPrize project for us to get super excited about.
We can’t wait to see you there or at the faire.
Space is limited, so get your foot in the door early. 21 or over only. Please bring ID.
Here’s a puzzler for you: how do you securely send data from one airgapped computer to another? Sending it over a network is right out, because that’s the entire point of an airgap. A sneakernet is inherently insecure, and you shouldn’t overestimate the security of a station wagon filled with tapes. For his Hackaday Prize…
via Hackaday Prize Entry: Secure Storage on SD Cards — Hackaday
Surface mount diodes are simple enough — all you need to do is make sure you have the anode and cathode in the right order when you place them on the pad when you solder them. These SMD diodes come in industry-standard packages, but do you think there’s an industry-standard way of marking the cathode?…
Elliot Williams writes on Hackaday:
E-ink displays are awesome. Humans spent centuries reading non-backlit devices, and frankly it’s a lot easier on the eyes. But have you looked into driving one of these critters yourself? It’s a nightmare. So chapeau! to [Julien] for his FPGA-based implementation that not only uses our favorite open-source FPGA toolchain, and serves as an open reference implementation for anyone else who’s interested.
Watch the E-Ink controller in action:
Design files and source code are available on GitHub:
julbouln/ice40_eink_controllerjulbouln has shared the board on OSH Park:
Every week Hackaday.io features an AMA of sorts. This is the Hack Chat, a chatroom where we sit down with the best in the business to talk about manufacturing techniques, engineering, and how to build the best hardware around. Over the last few months, we’ve hosted a few hardware celebrities, from [Sprite_TM] talking about the ESP32,…
It’s official, World Create Day is on April 22nd. Get together with hackers in your area and create something! This is best way to meet all the Hackaday readers in your area, and a great excuse to carve out a few hours of your busy life to have fun working on a project.
OSH Park 