We like the novel orientation of pogo pins that Wing Tang Wong used in this board design:
Upcycles D1 Mini Wemos board to create a USB connected ESP8266 Pogo pin jig
This is a board designed to take a WeMos D1 Mini board(with the ESP module removed) and use it as a USB interface with built-in reset/flash functionality for bare ESP8266 modules similar to the ESP-12 units.
The design files are available on GitHub:
ESP8266 Programming D1 Mini Pogo Jig V1
Electronic Cats made an important commit at SamyKam schematics. The first version of the PCB had an issue with a ground for the rotary encoder. The switch to select things in the menu was not working properly. After the fix, I tested the last version of the SamyKam PCB today from Oshpark, and […]
Southern California Linux Expo (SCaLE) had a track yesterday on Embedded Linux and video of the talks are on YouTube:
The video is a recording of the entire day of Room 104 so refer to the Friday schedule for information on the individual talks:
Jim Kleiner created a minimal FPGA cape for the BeagleBone Black: BBB LX9 FPGA Board Jim describes his design decisions: I decided to try a minimalist hand solderable FPGA board. The LX9 is the largest part available in a TQG-144, beyond that its BGAs One of the key points is that the SPI interface is on BBB […]
via FPGA cape for BeagleBone Black — BeagleBoard.org Blog
KiCad design files are available on GitHub:
KD2BOA has shared the board on OSH Park:
An update from the USB DAC + Headphone Amp project by Yin Zhong (summivox):
Months into the project and I was still amazed at the lack of availability of a class of ASICs: USB-I2S bridges. Well I just lied — if you are fine with USB 1.1 and USB Audio Class (UAC) 1.0, which severely limits your (bit depth × resolution × channel count)
So I kept looking for ASICs, and I found one that is close enough: XMOS XHRA-2HPA. It even comes with a reference design that does exactly what I want!
summivox has shared the board on OSH Park:
We want you to make the next Hackaday live event great. This is an Unconference in San Francisco on Saturday, March 18th and it depends completely on you. Get signed up now! You’re in Control of the Hackaday Unconference An unconference is a live event where you decide the topic, guide the discussion, and generally make it an…
via San Francisco Tapped for Hackaday Unconference on March 18th — Hackaday
Ole Andreas Utstumo designed this board to log ECG waveforms:
A portable device that will log your ECG – the “waveform” of your heart – to your phone via bluetooth or to a memory card
The Heartbeat Logger is a portable device that that logs your ECG throughout the day and throughout the night, 24/7. While this certainly is nothing new, even as an open source project (see MobilECG), Heartbeat is a project that, aside being of personal value for me, is designed to be simple to use and understand, and might serve a purpose somewhere for someone.
Utstumo/Heartbeat-Logger/
The 2017 Open Hardware Summit is the annual gathering of the OSHWA organization and open hardware community. We are a 501c3 not for profit. Our goal of the Open Hardware Summit and Community is to create an inclusive welcoming environment to empower people in all stages of discovering open source.
Tickets are on sale now through Eventbrite:
The Summit is seeking submissions for talks from individuals and groups working with open hardware and related areas. Topics of interest for the summit include, but are not limited to:
For the 4th year, the Summit is offering up to ten Open Hardware Fellowships to members of the community which includes a $500 travel stipend:
The Ada Lovelace Fellowship was founded in 2013 prior to the annual Open Hardware Summit at MIT by Summit Chair Addie Wagenknecht and OSHWA Director Alicia Gibb as a way to encourage women, LGTBA+ and/or other minorities in open technology and culture to actively participate and foster a more diverse community within open source.
Do you like Open Source? Join Hackaday and Tindie at the largest community-run Open Source conference in North America. We’ll be at the Southern California Linux Expo next week, and we want to see you there. What’s happening at SCALE this year? Amateur radio license exams, a PGP signing party, Bad Voltage Live and The Spazmatics, and…
via Join Hackaday And Tindie At The Southern California Linux Expo — Hackaday
Eric Brombaugh designed this breakout board for the Rafael Microelectronics R820T2 Advanced Digital TV Silicon Tuner chip:
This is the same chip used in most all of the RTL-SDR dongles, as well as the Airspy and numerous other radios. The chip is a versatile front-end with reasonable sensitivity and wide tuning range.
The design presented here is almost an exact implementation of the Mfg’s suggested demo design from the datasheet, implemented on the OSHpark 4-layer PCB process and provides a simple 4-pin interface with power, ground and I2C bus for controlling the tuner. A broad-band RF input and 10MHz IF output are provided on SMA connectors.
The breakout PCB design and STM32F0 firmware for the Rafael R820T2 tuner chip are shared on GitHub:
emeb/r820t2
emeb has shared project on OSH Park:
OSH Park 