Shared Projects

Arduino shield for programming multiple ATtiny microcontrollers: ATtiny13, ATtiny15, ATtiny24, ATtiny25, ATtiny44, ATtiny45, ATtiny84, ATtiny85, ATtiny2313, ATtiny4313. shared by Kai Bader

A breakout board specifically designed for xmega 100-pin TQFP microprocessors

modularLED Matrix

Bluetooth Low Energy Serial Interface using the BLE112 by Bluegiga. Firmware is based on their serial cable replacement example BG Script and the work done by Dr. Michael Kroll. Board is designed to interface like FTDI-based boards/cables. Solder jumpers on the back allow you to choose to use hardware flow control or support low-power host/BLE wakeup such as that used by Jeff Rowberg’s BGLib. BLE112 programming is accomplished with a TC2030-IDC-NL cable from Tag Connect. I have also made an adapter board for this cable so it can be easily used with a CC-Debugger.

C1, C2, C3 = 1uF

C4, C6 = 2.2uF

C5 = 0.47uF

R1 = 1kohm

R2 = 10kohm

U1 = MCP1700T-3302E/TT

Connection LED = Blue, 0805

Bluetooth Module = BLE112-A-V1

All passive components are 0805 size.

Design files are on GitHub

2-key capacitive touch USB-HID keyboard and some extension pins. (designed for an osu!-player)

Bass and electric guitar distortion/overdrive pedal

its a SHO, fo-sho!
Build Doc:

Not my design!! http://aeroquad.com/showwiki.php?title=AeroQuad32+Flight+Control+Board+v2

AMZ JFET Buffer + Splitter

PESO Rockoon communication board

PESO Rockoon main board

A small shield to make using Arduino as ISP easier

This circuit board attempts to implement this schematic: (by Palliser, not me… see the Arduino Forum link below for details)

http://forum.arduino.cc/index.php?topic=131096.msg1011501#msg1011501

The DB9M connectors are designed for this cable.

http://autocheckengine.com/products/obdii_cable_type_b.htm

Another pinout for CAN with DB9 is sometimes used (CANH & CANL on pins 7 & 2). Solder pads on the button side allow reconfiguring for the other pinout.

Recommended Components:

Qty   Digikey P/N       Description
---   -----------       -----------
 2    296-27991-1-ND    CAN transceiver
 2    445-7660-1-ND     Capacitor, 10uF, 805
 2    399-1170-1-ND     Capacitor, 0.1uF, 805
 2    609-4003-ND       DB9M connector
 2    CF14JT120RCT-ND   Resistor, 120 ohm
 2    3M9447-ND         Header, 2 pin
 2    3M9580-ND         Jumper

How to use Digikey’s website to find alternate parts when any of these aren’t in stock.

Evaluation board for the MK10DN512ZVLL10.

Uses an Optek reflective sensor to detect light/dark transitions, presumably stripes on a wheel. Output is filtered through a schmitt trigger. Supply it with voltage as indicated and get TTL compatible output.

Where a value contains a “/” the number preceding the “/” is to be used when powered with 5V and the number following the “/” is to be used when powered with 12V.

Output current should be kept less than 35mA with 5V supply or 10mA with 12V supply. In either case the output voltage will remain within TTL standards (2.8V – 5V for HIGH condition).

Pinball GI Driven Switch

Small circuit board for Atmega328P applications

2013 Practicum T15

General-purpose board to interface with small OLED graphical displays

Circle board