Shared Projects

Adapter designed to mount on the rear of a HD44780 LCD to enable easier connection of a ribbon cable.

18x1 header down to 7x2 for compatability with both regular and RGB backlit devices. If using with a standard 16 pin device, mount a 6x2 header and leave the leftmost pins (closest to JCF 2013 marking) disconnected.

Connects only D4-D7 so the LCD must be used in 4-bit mode.

Transistor & component tester. Based on designs from Markus Frejek, Karl-Heinz Kübbeler & Markus Reschke. http://www.mikrocontroller.net/articles/AVR_Transistortester

This version uses SMD parts and is designed to be directly soldered on the back of a 16 pin HD44780 LCD using a 0.1" pin header. Minor modification to the Reference (I used what I had to hand). Schematic is available at http://www.frenchie.id.au/electronics/ttester/schematic.pdf

Land ribbon cable from Raspberry Pi’s GPIO Header in inner holes, DIP headers for breadboard in outer.

Test share… This is a combined uSD and USB interface for Gordon Anderson’s MicroStar2000 Encoder.

Shared Mouser project to order components.

BOM in .xls format.

Schematic in .pdf

Firmware supporting the SD card has not yet been released, but this board would be functional with many other microcontroller projects.

ATMEGA328-PU TV Out Atmega328 Minimal configuration with 16Mhz resonator. CR2032 will give you 10-15min of power. I’m at 10+ hrs running with 3xAAA batteries so far. Code for TV Out can be found online easily.

Wireless sensor node board for nrf24l01+ RF transceiver with Attiny84.

Details can be found at: http://kehribar.me/hardware/nrf24_node/

Yet another ethernet gateway design.

Details can be found at: http://kehribar.me/hardware/ethernetGateway

An add-on board to a permit the use of a K-type thermocouple as the pit probe for Bryan Mayland’s Heatermeter (version 4.0 with a Raspberry Pi)

LED Pulser, V0 Dual capsense buttons, PIC12F1840 for PWMing

Cypress Capsense Express CY8C20142 SOIC-8 IC breakout.

Includes i2c connectors, and room for optional pull-up resistors. All SMT parts are sized 0805. Protection resistor pads are 560ohm.

http://www.cypress.com/?mpn=CY8C20142-SX1I

Cypress Capsense Express CY8C20110 SOIC-16 IC breakout.

Includes i2c connectors, and room for optional pull-up resistors. All SMT parts are sized 0805, except for LED pads which are 1205. Protection resistor pads are 560ohm.

http://www.cypress.com/?mpn=CY8C20110-SX2I

A quadcopter mainboard. Supports modules. More at m.hw.is

Simple logic probe with resistors,transistors, and LEDs. The pin on the left side is for a probe which could just be a right-angle header pin. The right side is for a screw terminal for hooking in alligator clips,banana clips, etc. The transistors I used are 2N3906 for Q1, and 2N2906 for Q2. One LED indicates logic high, and the other indicates logic low.

attiny board V0.1

Warning : it’s my first pcb !! not tested, feedback when received

more info :[email protected]

it’s working !!

SSOP20

Spring pin adapter for programming an IM-Me with a GoodFET.

http://sourceforge.net/p/goodfet/code/HEAD/tree/contrib/gimme/

The board has the following capabilities:

• 512K PRG rom
• 32K CHR Ram
• self-flashing (no need for a battery)
• On the fly mirroring mode change
  • Horizontal
  • Vertical
  • One-Screen

The original version of the board, as seen in Battle Kid 2, and other upcoming games, does not have full on the fly mirroring change, just partial, if the One-screen mirroring jumper is soldered. This one does away with the mirroring jumpers altogether.

Also, the board can be mounted with either Ciclone, a closed source cic chip, or with AVRCICzz, an open source cic chip.

(Really wish OSH Park would allow me to upload the Schematics along side the board file, inside of a zip file.) The matching schematics can be downloaded here

4k-64k EPROM-based Cartridge for Tandy/TRS-80 Color Computer.

See http://www.nf6x.net/tag/cocoeprompak/ for more details.

All design files available at https://github.com/NF6X/CoCoEPROMpak under GPLv3 license.