electronicia4u built a free USB Infrared Toy PCB. If you build a free PCB we’ll send you another one! Blog about it, post a picture on Flicker, whatever – we’ll send you a coupon code for the free PCB drawer.
Author Archives: Ian
Electronics calculator
Chuckt found even more common electronics calculator spreadsheets. Via the comments.
Bus Blaster v2 back in stock
Bus Blaster v2 is back in stock at Seeed Studio. You can get a Bus Blaster v2 for $34.95.
Dangerous t-shirt prototype v1
Fan @ Seeed Studio holds up dangerous t-shirt prototype v1, size large. We’ve been talking about t-shirts for a while, and it’s finally happening. There was some initial concern that Chinese shirts run 1 or 2 sizes smaller than US shirts. Fan talked to a few printers about US-sized shirts and got this sample today. […]
Chronoduino an expandable Arduino watch
orcinus posted pictures of the Chronoduino expandable Arduino watch in the project log forum: So i’ve set out to design the ultimate Arduino watch platform that’s also usable as an ultra-miniature sensor node and dubbed it (quite unimaginatively) – Chronoduino. Some parts are based off of Bazile Romaine’s rev 3 MakerBot Watch, some are completely […]
Free PCB Sunday: Pick your PCB
We go through a lot of prototype PCBs, and end up with lots of extras that we’ll never use. Every Sunday we give away a few PCBs from one of our past or future projects, or a related prototype. Our PCBs are made through Seeed Studio’s Fusion board service. This week we’re giving away two […]
Cygni and Procyon ARM dev-board PCBs
Teholabs sent the Cygni and Procyon ARM dev-board PCBs to the board house: We are pretty excited to have two new development boards out to the PCB house. They are Procyon and Cygni. Cygni and Procyon represent the two extremes of where ARM micros seem to make sense to us for the DIY/hacker/maker community. Via […]
Digital thermometer with SPI interface
An app note on a digital thermometers and thermostats with an SPI interface: Industry’s First Low-Voltage 3-Wire/SPI Temperature Sensors Enable Easy Implementation Into Low-Power Systems Aids designers in meeting error and power budgets Independent operation alleviates system resource drain Increases system reliability Thanks rsdio!
The ultimate Nerd Apparel: iCufflinks
Adafruit has a knack for great publicity. Here’s their iCufflinks project at NYTimes.com: Nerdy cufflinks have been around quiet for a while: There’s the black 20-sided dice cufflinks that are based on the game Dungeons and Dragons, Microsoft Xbox branded cufflinks for videogame fans and cufflinks made from computer keyboards. But none of these can […]
EagleUP brings PCBs to Google Sketchup
EagleUp is a new way to render Eagle PCBs in 3D. It integrates with Google Sketchup so it’s possible to design cases around the PCB model: version 4 has been released. Most of the import and export procedures have been automatized to simplify the process, so that you can focus in design, and not in […]
PIC microcontrollers with configurable logic cells
Microchip has a new configurable logic cell (CLC) unit in Microchip PIC10F32x. It’s not quite a FPGA, more like a multi-function 7400 series logic chip stuck to a PIC. Also available in the 20 pin PIC 16F150X: …new features include a new Configurable Logic Cell (CLC) which allows the user to do simple Boolean functions […]
Free PCB coupon via Facebook comments #7 and #11
Every Friday we give away some extra PCBs via Facebook. The #7 and #11 people who comment on this post at Facebook get a free PCB. More PCBs via Twitter on Tuesday and the blog every Sunday. This week we’re giving away two PCB codes. Pick your own PCB from the free PCB drawer. Don’t […]
Week in (p)review: July 22, 2011
Facebook free PCB Friday is on the way. Don’t forget to share your current project in the comments or the forum. Here’s a summary of major developments over the last week: Bus Pirate MCP9800 temperature sensor tutorial Embeded Linux board update Dangerous Prototypes has as new theme Ronan and Zaharia won a TS9001 demo board […]
USB Infrared Toy as a JTAG programmer
electronicia4u used a USB Infrared Toy as a JTAG programmer: After seeing circuit details I discovered it used some pic18F2550 as was almost compatible with dangerousprotypes IR Infrared Toy (also they used same xtal frequency), so I downloaded firmware and programmed succesfully this device easily without modifiying firmware source code. You can get IR Toy […]
Resistor divider calculator
Ultrasounder shared a resistor divider calculator spreadsheet: Don’t we all have had frustrations galore when we were trying to fine tune the resistor divider for our voltage feedback on PS and LODs? Well, my good friend Art Nace came up with this wonderful tool to calculate the best fit values for the resistors for dividers. […]
Versatile SOIC PIC programming header
Mick found a versatile SOIC PIC programming header: A small PCB allows for the out-of-circuit programming of 18 & 28 pin SOIC PIC Microcontrollers from either an ICSP programmer or ZIF socket. Thanks Mick! Via the forum.
Bus Pirate MCP9800 temperature sensor tutorial
Nexus used the Bus Pirate with an MCP9800 temperature sensor and documented it on the wiki: The MCP9800 is an inexpensive, high-accuracy, 2-wire (I2C) temperature sensor. It features selectable 9/10/11/12 bit resolution with a typical accuracy of ±0.5°c at 25°c, programmable alarms, and low power consumption. We sent a free PCB code to say thanks! […]
Touchstone Semi TS-9001 demo board winners
The winners of TS9001 op-amp demo boards are Ronan: I would like one of those! This is exactly what I need to make my graphical On-screen-display. Right now I have to use a normal comparator and a resistor divide “reference”. and Zaharia: I want to make a DIY user interface for my power source. TS9001+PIC18F+GLCD […]
Embeded Linux board update
sqkybeaver took over the embedded Linux board routing and released an updated PCB. Here’s the wiki for this project. Via the forum.
Blog theme update
After two years with a default look, Dangerous Prototypes finally has as new theme. It’s based on Starkers blank theme with custom styling. Here’s our design goals, stolen shamelessly from our favorite sites: A smaller header with less fluff before the content. A couple bold, direct links at the top to different parts of the […]