Flash Memory Adapter for Game Boy

April 14, 2017April 13, 2017 fustinicastellation, flash, gameboy, retro gamingLeave a comment

J.Rodrigo created this adapter board make it easier to flash a Game Boy cartridge:

Flash Memory Adapter for some Game Boy Cartridges

You only need to solder 3 or 4 wires and the adapter board to an old cartridge, PCB adapter boards are manufactured on OSH park to ensure the best quality of castellations.

Compatible Cartridges:

DMG-A02-01: MBC5 + ROM (256/512/1024 KB) + RAM (32KB) + Battery

DMG-A06-01: MBC5 + ROM (256/512/1024 KB) + RAM (8KB) + Battery

DMG-A07-01: MBC5 + ROM (256/512/1024 KB)

https://www.tindie.com/products/JRodrigo/flash-memory-adapter-for-some-game-boy-cartridges/

JRodrigo has shared the board on OSH Park:

Flash Memory Adapter for Game Boy

E-Paper Breakout Board for Teensy

April 12, 2017April 11, 2017 fustiniarduino, digikey, epaper, kicad, teensy, wickerlibLeave a comment

Breakout board designed in KiCad to connect Pervasive Displays 2.15″ E-Paper (E2215CS062) to Teensy 3.2 or Teensy LC. Based Teensy E-Paper Shield by Jarek Lupinski in EAGLE.

My goal is to create a name badge I can wear at conferences and Maker Faires. This was first step to verify the KiCad schematic and KiCad footprints work. I will post more information as the badge project progresses.

epaper-breakout-board-quotes

KiCad PCB design files:

repo: pdp7/kicad-teensy-epaper
commit: 54458f4
requires KiCad library wickerlib by Jenner Hanni of Wickerbox Electronics for the 34-position FPC connector that the e-paper display plugs into:
- CONN-HEADER-FH34SRJ-34S-0.5SH.kicad_mod

The board is shared on OSH Park:

E-Paper Breakout Board for Teensy

Bill of Materials (BoM)

Digi-Key shopping cart

Source Code

uses EPD215 Arduino Library by Jarek Lupinski for his E-paper Teensy Shield
requires pinout modification:
- EpaperQuoteDisplay.ino
- EPD215 epaper( 17, 16, 14, 15, 13, 11 );

Photos

Video

YouTube: KiCad ePaper breakout for Teensy

Related: Jarek’s ePaper Teensy shield

OSH Park shared project: Teensy e-Paper shield
My repo of Jarek’s design files: TeensyEpaperShield

Rotary Encoder Breakout with Pull-up Resistors

April 5, 2017April 5, 2017 fustiniarduino, kicad, rotary encoder, sparkfun, teensy3 Comments

This breakout board designed in KiCad makes it easy to put a rotary encoder and pull-up resistors on a breadboard. (Thanks to Enrico for the idea to add pull-up resistors). The footprints on the back are meant for 1206 SMD resistors. I choose 1K Ohm resistors, marked 102, when I assembled this board.

https://oshpark.com/shared_projects/CN5gjITG

Additional photos are available in the GitHub repo’s images directory and in a Google Photos gallery.

Here is the OSH Park shared project for the board:

Rotary Encoder Breakout with Pull-ups

The KiCad design files are available on GitHub:

pdp7/rotary-encoder-breakout

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I used this KiCad symbol and footprint by Mike Cousins for a Sparkfun rotary encoder:

mcous/kicad-lib

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I’ve verified that these rotary encoders fit:

I wrote this Arduino sketch to run on the Teensy 3.2. The brightness of one LED is controlled by the rotary encoder knob. The other LED is turns on when the rotary encoder knob is pressed down:

rotary-encoder-test.ino

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Here’s a video of the breakout board being used with a Bourns PEC12R-4220F-S0024 and Teensy 3.2:

Trixel Interactive LED Kit

April 4, 2017 fustiniart, EAGLE, hackaday.io, LED, lightingLeave a comment

Arkadi designed this interactive LED kit:

Trixel LED

Create your own interactive Light elements by soldering basic shapes, such as triangle, square, pentagon and hexagon to create an interactive LED sculpture.

Here’s a video of the Trixel LED boards in action:

The design files are available on GitHub:

arkadiraf/Trixel-LED

Arkadi_Raf has shared the boards on OSH Park:

Pentagon LED

Square LED

Triangle LED

SoundBeacon

April 3, 2017April 3, 2017 fustiniaccessibility, assistive technology, Audio, BLE, Bluetooth, ibeacon, wirelessLeave a comment

Patrick Van Oosterwijck created an audio BLE beacon that can be activated by the vision impaired to find exact locations of doorways, bus stops, crosswalks, and more:

SoundBeacon

The idea is that a blind person uses a navigation app, and can query to see “what is around”. In the list of beacons that are around, they can tap the one they want to know the location of and it will start to produce an audible signal for a short time.

https://hackaday.io/project/15595-soundbeacon

The BLE module is configured as an iBeacon and allows connections. It has a battery service and an “Immediate Alert” (AKA “Find me”) service.

Patrick used the following to build the prototype:

A 550 mAh 3.2 V LiFePO4 cell
A #LiFePO4wered/Solar1 prototype to charge the battery
A 5.5V, 0.6W monocrystalline solar cell
A Silicon Labs (formerly BlueGiga) BLE113 module
A beeper that works very badly (better solution needed)
And a IP65 enclosure

xorbit has shared the booster for loud piezo beeper on OSH Park:

PiezoBoost

Musical Toothbrush by Joe Grand

April 1, 2017March 31, 2017 fustiniatmel, attiny, attiny85, Audio, avr, microcontrollerLeave a comment

Hackaday wrote about a nifty hack by Joe Grand:

[Joe Grand’s] Toothbrush Plays Music That Doesn’t Suck

It’s not too exciting that [Joe Grand] has a toothbrush that plays music inside your head. That’s actually a trick that the manufacturer pulled off. It’s that [Joe] gave his toothbrush an SD card slot for music that doesn’t suck. The victim donor hardware for this project is a toothbrush meant for kids called Tooth Tunes.…

Joe published full documentation for the project on his website:

The PCB is shared on OSH Park:

Tooth Tunes Hack

Joe describes the project in this video:

Hear the toothbrush in action:

Creating the Benchoff Nickel

March 30, 2017March 23, 2017 fustiniart, Chicago, hackaday, kicad2 Comments

Andrew Sowa writes about the PCB he designed in KiCad to surprise Brian Benchoff last weekend at the Hackaday Unconference in Chicago:

Creating the Benchoff Nickel

I thought of making the Benchoff nickel after I saw Brian’s Hackaday,io profile. He has a hi-res image of the center a Benchoff Buck which is well suited to being converted to a PCB. There is only a few colors and they have sharp edges. Bitmap2Component in Kicad, can easily detect these transitions and convert them into a footprint file. With the help of a text editor, I was able to manually layer everything into one complete image.

http://andrewsowa.com/blog/2017/3/19/creating-the-benchoff-nickel

The KiCad design files are available on GitHub:

Junes-PhD/Benchoff-Nickel

Junes-PhD has shared the project on OSH Park:

Benchoff Nickel

Micro size flight controller

March 26, 2017March 21, 2017 fustinidrone, quadcopter, uavLeave a comment

vladisenko designed this micro size flight controller board for Eachine E010 frame:

vladisenko/EachiWhoop

Processor: STM32F103CB
Gyro: MPU6500
Receiver: Flysky AFHDS
Weight: 1.44 grams
Voltage: 1S Lipo battery input
Firmware: patched Betaflight

Vladisenko has shared the board on OSH Park and

EachiWhoop

Note: choose “2oz 0.8mm” option.

14-bit 80MSPS ADC for SDR experiments

March 24, 2017March 22, 2017 fustiniADC, SDR, wirelessLeave a comment

Eric Brombaugh designed this ADC board for RF signals:

RXADC_14 Pmod

This is an ADC designed for use in digitizing RF signals with up to 40MHz bandwidth and 80dB SNR. The form-factor is compatible with a dual-connector Digilent Pmod so that it can be used with commonly available FPGA development boards to build a variety Software-Defined radio functions.

Features:

ADC14C105 14-bit 105MSPS RXADC.
Onboard 3.3V Regulator (5V input)
Filtered Analog 3.3V Supply
Onboard 80MHz clock oscillator
Digilent-compatible 2-connector Pmod interface
50-ohm SMA input – 2.5Vpp ~= 0dBfs

emeb has shared the board on OSH Park:

14-bit 80MSPS ADC for SDR experiments

831aa0bd88f188310e6a04a187a105ae

Hall Sensor Preamp

March 19, 2017March 8, 2017 fustiniADC, sensorLeave a comment

Piotr Zapart designed this board to overcome range issues when using traditional 300 degree potentiometers or Hall sensors as rotational angle to voltage converters:

HALL Preamp/Analog axis calibrator

The idea was to create a device that will perform an axis calibration, usually done in digital domain, but before sampling the signal in the ADC, still in analog domain, using it’s advantageous infinite resolution

the main function of this device is to:

Buffer the analog output signal coming from a potentiometer or another rotary angle to voltage converter like ie. Hall sensors.

Filter out the high band noise and limit the bandwidth to an usable range only, protect the input against voltage spikes.

Match the output voltage range of the source (pot/hall sensor) with the input range of the ADC, thus making the most of the available ADC resolution.

Linearize the hall sensor output signal response by amplyfing it’s most linear region to the full scale ADC input range.

The board is shared on OSH Park: