Join us tonight at BJ’s from 7:00pm to 12:00am for the unofficial Maker Faire Bay Area tradition:
If you are going to Maker Faire Bay Area today, then be sure checkout these talks:
Sunday, May 22, 11:00am on the Make: Electronics stage
OSH Park is at Maker Faire Bay Area! Laen, Dan and Drew are scouring the fairgrounds to see awesome projects makers have built with purple PCBs. Please let us know on Twitter, Facebook or Google+ if you’re here at Maker Faire, too!
We’ll be at these evening events and hope to see you too:
We are excited to attend these two talks at Maker Faire:
Rocket Dept has terrific Learn to Solder kits in lovely purple ‘n gold, located in the main expo hall. They debuted a new kit called Hue which is big adjustable RGB LED:
PocketNC is showing off their new FR4 Machine Shield which is made entirely from one of our PCB panels (we can do white for orders of 1,000+ sq inches). Find them in Redwood Hall (a.k.a. Maker Pro building) next to PancakeBot:
Nick Sayer of Geppetto Electronics has brought Toast-R-Reflow controller and many other boards to Maker Faire. He’s next to Rocket Dept. in the Main Expo hall:
is building a very interesting clock:
A digital clock built with Diode-Diode Logic (DDL), a quirky new logic family using only common diodes and passive components.
The EAGLE design files and LTspice simulation file are shared here on hackaday.io.
Ted created a smaller example to demonstrate diode logic gates really are:
DDL Demo Board and Simple Examples
The board is shared on OSH Park:
DDL demo board
Andrew Sowa designed this notched PCB in Kicad to control a rely board via I2C:
A recent project required me to control 48 channels of line voltage. I knew I needed some relays and more control lines so I went on a search for something affordable. Numato Labs had a nice 16 channel unit that was within budget and I was able to mock up a working unit by using a MCP23017 from Adafruit.
I wasn’t happy with the mess of wires and wanted something cleaner. Using Kicad and OSH Park, I made a small form factor surface mount unit. This reduced my supply wires and allowed me to daisy chain units for easier install.
The design files and source code are available on GitHub:
Junes-PhD has shared the board on OSH Park:
Exterme Electronics has created a tiny line following brush bot for a Scout group Electronics badge:
cheap as possible and easy to build for kids 10-14 as part of a short electronics course
We’ll be at Bay Area Maker Faire and we want to have a beer with you on Saturday night. Two years ago we headed off to the Bay Area Maker Faire and thought we’d invite friends and acquaintances to congregate at a bar on Saturday night. Anyone who’s been to the Faire (or been through…
via Meet Up with Hackaday this Saturday in San Mateo — Hackaday
Sometimes a project doesn’t have to be technically amazing to win over our hearts. [Malte]’s ESP8266-based weather station is so cute, and so nicely executed, that it’s easily worth a look. It could totally be a commercial product, and it’s smaller than a matchbox. It combines temperature, humidity, and barometric pressure sensors on one side…
via Tiny Matchbox WiFi Weather Station — Hackaday
A common sight in the days before cheap PCs conquered the world was the dumb terminal. A keyboard and a monitor with a serial port on the back that was usually hooked up to a minicomputer or even a mainframe, these were simple devices. Anything that came into the serial port was rendered on the…
via Chibiterm Is A Tiny Low-Cost VGA Terminal — Hackaday
Teensy-LC (Low Cost) by Paul Stoffregen is a powerful 32 bit microcontroller board, with a rich set of hardware peripherals, at a very affordable price:
Teensy-LC delivers an impressive collection of capabilities to make modern electronic projects simpler. It features an ARM Cortex-M0+ processor at 48 MHz, 62K Flash, 8K RAM, 12 bit analog input & output, hardware Serial, SPI & I2C, USB, and a total of 27 I/O pins:
Teensy-LC maintains the same form-factor as Teensy 3.2, with most pins offering similar peripheral features:
- Real Hardware Serial
- Efficient USB Communication
- Hardware Timers
- Analog Input & Output at 12 Bit Resolution
- 5 Volt Buffer For WS2812/NeoPixel LED Projects
Compared With Teensy 3.2:
Some features of Teensy 3.2 simply aren’t available at this lower price point.
- The I/O pins are not 5V tolerant.
- The maximum speed is only 48 MHz, and the Cortex-M0+ omits M4’s special math instructions.
- CAN bus is not available.
- Teensy-LC has only 4 lightweight DMA channels, rather than 16 fully featured channels.
- Serial1 & Serial2 have only standard buffers, not FIFOs.
- Fewer hardware timers are available.
Every few years, someone on the Internet builds a truly homebrew CPU. Not one built with a 6502, Z80, or a CPU from the 80s, either: one built completely out of 74-series logic chips or discrete transistor. We’re lucky enough to have [Alexander] document his build on Hackaday.io, and even luckier to have him enter it…
via Hackaday Prize Entry: You Can Do Anything With A Bunch Of NANDs — Hackaday