Alexander Ryzhkov created a small 555 timer-based piano:
Main goal of this project has been creating pretty designed 555 based piano in small form-factor. Many 555 piano are using 9V battery for supply. I use CMOS timer and for timer need only 3V supply.
ChirnoTech/555Piano
Brian Benchoff wrote on Hackaday about the amazing PCB artwork that he’s seen so far in 2017:
PCB art is getting better and better every year. This year, though, is knocking it out of the park. In March, Andrew Sowa turned me into money.
More recently, Trammell Hudson has explored the layers of OSH Park soldermask and silk to create a masterpiece.
Now, we’re moving up to full-blown art. Blake Ramsdell worked with OSH Park to create a full panel of art in gold, fiberglass, soldermask, and silkscreen. It’s 22×16 inches, and it’s fantastic.
David I. Herman just created a Facebook group for PCB paintings.
Wayne Holder designed a simple pushbutton power on/off circuit that works with most Arduino boards:
This article shows how you can use a simple, ultra low current pushbutton, an LED and a few I/O lines to implement pushbutton power switch for an Arduino.
Simply press the pushbutton for a few seconds and the Arduino will power on and run code. Then, push and hold the pushbutton until the LED illuminates and then release the button to switch power off.
Wayne made this project video:
wholder has shared the board on OSH Park:
From Radomir Dopieralski on Hackaday.io:
Yet another pi zero retro handheld game console.
| Quantity | Component name |
| 1 | Raspberry Pi Zero |
| 1 | 1.5″ SSD1351 Display Module |
| 2 | Small SMD Speakers |
| 2 | 33nF SMD Capacitor |
| 2 | 1µF SMD Capacitor |
| 2 | 150kΩ SMD Resistor |
| 2 | 270kΩ SMD Resistor |
| 6 | Buttons |
| 6 | 90° Buttons |
| 1 | ZeroLiPO |
| 1 | 1S LiPo Battery |
We’re doing a Hack Chat this Friday at 12:00 pm US PDT!
Every Friday, we gather ’round the hot air gun over on Hackaday.io, invite some cool people over, and get them to talk about what they do. This is the Hack Chat. It’s become a tradition, and already we’ve had a ton of awesome people walk through our doors.
This week, we’re inviting [Drew Fustini] and [Dan Sheadel] to talk about what OSH Park does, how they became the first place that comes to mind when you need a PCB. They’ll explain why the boards are purple, environmental regulations for PCB manufacturing in the US, shared projects and tips and tricks for creating the perfect board.
From Alex Wulff on Hackster.io:
This small PCB lets you learn Morse code and communicate with friends. Set up a telegraph network in your very own home!
The source code is shared on GitHub:
AlexWulff has shared the project on OSH Park:
Modems have been around for longer than the web, and before we had Facebook we had the BBS scene. Somewhat surprisingly, people are still hosting BBSes, but have fun finding a landline these days. [Blake Patterson] is one of the leading aficionados of retocomputers, and recently he took it upon himself to review an interesting new…
via BBSing with the ESP8266 — Hackaday
Exciting project by Alex Wulff on Hackster.io:
This whole circuit is the same size as a regular poker chip, but with an added surprise: lights!
Spice up your poker games with these cool blinking chips. They can be programmed on the fly to have a certain number of the LEDs illuminated to indicate value, or you can have the lights blink in a cool pattern. They make great playing chips for championships or great prizes to hand out to the winners.
Video of the board in action:
AlexWulff has shared the board on OSH Park:
Hardware Happy Hour (3H) Chicago was excellent this past Tuesday at Saint Lou’s!
Sebastian Gajate was in town all the way from Argentina and presented The Amp Hour host Chris Gammell with his own fútbol jersey!
Thanks to Andrew Sowa bringing his camera and taking the above shot and many more wonderful photos. Bart Dring brought his latest CNC build: a drawing robot based on Line-us.
Here the draw bot in action:
Brian Rutkowski’s impressive LED spinner project was a crowd pleaser!
Watch more of the dazzling LEDs in this video:
The adorable Simula robot by Jamie Laing was another favorite:
Simula made several new friends:
We were excited to get a look at the purple PCB inside:
Andrew Sowa showed the results of his technique in KiCad for converting photos into PCB artwork
We were excited to meet Jose Ignacio Romero who had designed the Low Power Continuity Tester for the One Square Inch contest on Hackaday.io last year. He brought many projects to share including this color memory LCD board:
Peter Zieba of Analytics Lounge community lab demonstrated XRF (X-ray fluorescence)!
View more photos in these galleries:
OSH Park 