From the Facelesstech blog:
Normally you would use through hole then either have a 90 degree headers or just bend them over. [..] I had a brain wave, why don’t I lie the header down flat on the board and solder it to a SMD pad
The design files are available on GitHub:
smd_edge_connectors
Mike Rankin created this board with a tiny OLED display controlled by an ESP8266:
I created this design as a challenge to make a design under 1″ x 1″ in size.
The hardware is an ESP-01 ESP8266 Wifi module, linear power supply, microUSB connector and a few oled display parts.
The design files and source code are available on GitHub:
ESP8266_OLED
Here is a video of the assembly and operation:
miker has shared the board on OSH Park:
ESP32-WROOM-32 modules are in stock now! Again these are from the very first lot and with limited supply. To give chances to more developers to try them we will not allow more than 3 modules per order. This module is good only if you develop your own board. For these who are not good with […]
via ESP32-WROOM-32 WiFi/Bluetooth module is in stock! — olimex
Hackaday reports:
[Elliot] wrote in with his OpenFixture model for OpenSCAD. It’s awesome because it takes a small problem, that nonetheless could consume an entire day, and solves it neatly. And that problem is making jigs to test assembled electrical products: a PCB test fixture.
In the PCB design software, you simply note down the locations of the test points and feed these into the OpenSCAD model. [Elliot] shows you exactly how to do it using KiCAD. There are a few more parameters of the model that you can tweak to match your particulars, but you should have a DXF outline for a test jig in short order. Cut that out, assemble, and test.
ORCONF 2016 was held earlier this month in Bologna, Italy:
ORCONF is an open source digital design and embedded systems conference, covering areas of electronics from the transistor level up to Linux user space and beyond. Expect presentations and discussion on free and open source IP projects, implementations on FPGA and in silicon, verification, EDA tools, licensing and embedded software, to name a few.
Begun as the annual OpenRISC developers and users conference, it has become a broad open source digital design-oriented event and is supported by FOSSi – the Free and Open Source Silicon Foundation.
Elkim Roa spoke about OnChip, an Open Source silicon microcontroller, designed by his research group at UIS (Universidad Industrial de Santander):
The slides are available as PDF on GitHub:
OnChipUIS has several repos on GitHub related to the project including:
mriscv: A 32-bit Microcontroller featuring a RISC-V core
We’re big fans of podcasts about electronics and embedded systems like The Amp Hour, embedded.fm and The Spark Gap podcast. (Please let us know in the comments of other shows we should check out)
In the latest Spark Gap episode, Karl and Corey talk about their trip to Portland for the 2016 Open Hardware Summit:
We also enjoyed when Karl and Corey were joined by James Lewis of Kemet Electronics to talk about capacitors.
Mike Rankin created this adorably small WiFi-connected color OLED board:
I’ve been keeping an eye on the SSD1331 library to see if it would eventually work with the ESP8266 wifi modules. I noticed the support for it appeared one day with the Adafruit library so I tried it out on my Adafruit Hazzah and success!
Video of the board in action:
miker has shared the board on OSH Park:
UPDATE 2016-10-24: Dave Conroy of CRT Labs will present the PiAQ tonight at Chicago hackerspace Pumping Station: One
National Association of Realtors’ CRT Labs in Chicago has developed a Raspberry Pi HAT to make information about the air people are breathing more accessible:
Open Source Indoor Air Quality Sensor for Raspberry Pi
Measurement Points:
Connectivity:
Schematics and Eagle CAD Files are on GitHub:
/PiAQCRTLabs has shared the board on OSH Park:
One of our favorite hardware hackers, Joe Grand, has shared slides and hardware designs from his recent B-Sides PDX talk:
Data exfiltration from a device is usually achieved over the network, via hardware implant, or by manipulating the characteristics of an internal electronic component. Optical covert channels transmit data using visible light in a method undetectable to the human eye.
Joe demonstrates using an optical receiver to capture data transmitted through a LED:
joegrand has shared the receiver boards on OSH Park:
digital version using Everlight PLR135/T9 Fiber Optic Receiver
analog version based on Maxim Integrated’s AN1117 application note:
Ilya Titov created this adorable, tiny keychain arcade kit:
ATtiny Arcade is a little game made using Atmel Attiny85 microcontroller and an OLED screen. The kit is a great hobby project that requires assembly with a soldering iron.
Available games:
OSH Park 