Replacing RIGOL DS1052E DSO rotary encoders

Markus did a repair on his scope: yesterday I decided that it was about time to replace the bad performing rotary encoder for the time-base of my RIGOL DS1052E DSO. The encoder seemed to work fine when I bought the scope, but after a few weeks it already started to change the time-base quite randomly […]

2A automotive step-down converter

rsdio writes:  maybe voidptr can use this in his Noob car blinking LED project… MAX16974 High-Voltage, 2.2MHz, 2A Automotive Step-Down Converter with Low Operating Current Wide input voltage range (3.5V to 45V) allows seamless operation from cold crank to load dump Low quiescent current meets tight power budgets High-frequency operation eliminates AM-band radio interference

Tokyo Hackerspace’s Geiger counter project update

Tokyo Hackerspace has continued to evolve their DIY networked Geiger counter project. Our friend Takyen, forum member and Thermal Tweeter case designer, has been involved in this project. Here’s an update via Make: We joined up with Safecast (RDTN at the time) and since then, almost all the core members of Safecast Japan are now […]

Free PCB coupon via Facebook comments #5 and #11

Every Friday we give away some extra PCBs via Facebook. The #5 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. Be the first two commenters and you get the PCB. […]

MPLABX Beta 7 now available

MPLABX IDE is now available: Beta 7 of Microchip’s cross-platform MPLABX IDE is now available. The IDE can be downloaded over at the MPLABX download page.  Additionally, tutorials and help information for MPLABX are available here. In addition to MPLABX, the Microchip C compilers on the downloads page have all been updated. Updated compilers are: […]

Week in (p)review: August 12, 2011

Sorry for the slow posting yesterday and today. JTR released a working, open source USB bootloader for Bus Pirate v4. We’re testing and tweaking it on IRC. 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 […]

Downloadable source for hackerspace passports

Downloadable Source for Hackerspace Passports: You mentioned the Hackerspace Passports Mitch and I designed and I wanted to give you a followup. We’ve released all of the source files used to construct it, including patterns, stamp designs, psd’s, the InDesign layout files, and full resolution illustrations. We’re hoping that people will customize, remix, and develop […]

eagleUp 4.2 released

eagleUP v4.2 was released. This is a new and popular program for exporting Eagle PCBs to use in Google Sketchup: Version 4.2 has been released. It simplifies the configuration and detects wrong settings so that it’s much more reliable. It should be more stable on OS X platform as well. Concerning the parts, there are […]

Partlist Wednesday: Ferrite beads

Every Wednesday we highlight a component from the updated partlist. This week: Ferrite beads. We usually use ferrite beads as a power supply filter. You’ll find them on the USB supply in circuits with an FT232 USB->serial converter chip, like the Bus Pirate, and on the ethernet interface of the web platform. For general purpose […]

The single NPN transistor audio preamp

Hack a Week’s new project this week is a single NPN transistor audio preamp: Here’s a great little project that goes well with the LM386 audio amp. It’s a good first time transistor project because it’s simple and demonstrates the common emitter class A amplifier circuit with only six components in the signal path.

Flashrom 0.9.4 released

Mattias inform us of the release of flashrom 0.9.4, which works with the Bus Pirate : Flashrom is a utility for reading, writing, erasing and verifying flash ROM chips. Flashrom is designed to flash BIOS/EFI/coreboot/firmware/optionROM images on mainboards, network/graphics/storage controller cards, and various programmer devices. It can do so without any special boot procedures and from your normal […]