SMD May – programming jig
This week we’re building Logic Pirate open hardware logic analysers at VHS in our SMD workshops. The ICSP header is 0.05″ pitch so I came up with a top and bottom programming jig to load the initial firmware. Tickets …
Category: Projects
SMD May PCBs arrive just in time
The circuit boards from dirty pcbs for SMD May are here just in time. The Logic Pirate is a nice cheap compact logic analyser design by Markus Gritsch. More at Dirty PCBs and Dangerous Prototypes.
SMD April – USB Isolator overview
You can see from looking at the block diagram above that the isolation is transformer based, it’s quite remarkable that they can fit 5 transformers in such a small package. If you can’t attend the workshop the pcb files can …
SMD April – USB Isolator
In one of the earlier SMD workshops I managed to temporarily kill my new macbook pro when I plugged in a prototype. I revived it by removing the battery all the time chanting to myself, must get a usb isolator, …
SMD March – Internet of things board
For SMD March we’ll be building an Internet of things board. This is the heart of an arduino uno coupled with an ethernet interface to let you control leds, relays etc, plus read switch positions, temperature etc. all over Ethernet. …
Fun with lasers!
Although, I guess “fun” is always implied when lasers are involved. I shouldn’t have even bothered. Here are some things lasers are good for: 1) Organizing your kitchen. 2.) Clamping stuff 3) Holding worm gears …
SMD January – demo video now available
Here is a demo video of the awesome vhs led badge designed by Richard Sim. These are mostly assembled, we’re holding workshops in January to finish the build and learn about how they work. This board has a Atmega 168/328 …
SMD January – VHS 5th Anniversary LED Badge
The VHS 5th Anniversary LED badge is a Atmel 168 based board with an Altera CPLD driving a two colour 8×16 LED matrix. Other features include a 5 way joystick, separate button, expansion header for i2c peripherals and a microphone. …
New Group Project: Lyman Filament Extruder
Read the Wiki page and join in. Let’s recycle some 3D printer plastic. Good for the Earth. Good for each other.