Staff Picks

Thank you to our wonderful community members, who share their projects! This week’s favorites range from a VGA converter, USB charge booster and juice jacker preventer, optically isolated 4-channel ARD


This Charge Booster – DCP Enumerator/USB Wrapper by WarHawk-AVG acts as a USB Wrapper, preventing juice-jacking since the data connection does not connect to the charging port data pins.


nslogan‘s ARD4 v1.0 is an optically-isolated 4-channel automotive relay driver, with 1A output possible per channel. Use a jumper to select between active-high and active-low inputs, and between DB9 or external power for the input side. Also featured is reverse-protection on both the  logic and relay side power. There is a LED across relay driver output that indicates if the relay is getting power. Test points exit for logic and relay power, and for each channel on the logic side. The pcb fits Sick of Beige DP8049 form factor, but should be used with 10mm stand-offs between board and top panel.


This RGB2VGA for Altera DE0-Nano by lfantoniosi, is “a FPGA implementation of a RGB to VGA converter using the Altera DE0-Nano board.”


x-io has designed a helpful breakboard for the Redpine Signals RS9110-N-11-22 Wi-Fi module, which features pull-down resistors in the design.


Want to increase your chances of our picking your project? Make sure to include a link to your project documentation or leave detailed information in the shared project description box!

Have a project to nominate for our picks of the week? Email a short description and a link to any project documentation to Cat!

DIY Light Up Plush Monster Tutorial

Follow the steps below to create a light up monster friend of your very own!

Follow the steps below to create a light up monster friend of your very own!


Skill level: Beginning to intermediate


Knowledge: Designing a basic circuit with LEDs in parallel and hand sewing a running stitch. If you’re sewing the entire project by hand, a bonus knowledge of blanket stitch for sewing around the edges might be helpful.



  • 4 sheets of felt
  • 1 ft tulle or other findings you want to add
  • 2 non-metal buttons
  • spray craft adhesive
  • embroidery floss
  • 2 LEDs
  • CR2032 battery
  • Battery holder (You can either make your own or purchase one like this one from Adafruit)
  • Conductive thread
  • Monster pattern- Draw your own or use one of the many awesome free templates available online



  • Needle nose pliers
  • Hand sewing needle that fits easily through the contacts of your battery holder
  • Needle threader- While not absolutely necessary for some, I find threading the conductive thread or embroidery floss near impossible without one.
  • Scissors
  • Optional: Sewing machine
  • 2 different colored markers


Step 1: Trace your template onto the felt and cut it out.


Step 2: Decide where to put your LEDs, and draw your circuit using different colored markers for your positive and negative traces.


Step 3: Use a straight pin or your hand sewing needle to stab the fabric to loosen it where you want to insert the LED.

Insert your LEDs through the buttons and into the fabric with the negative leads on top and positive on the bottom. This will make sewing your circuit easier.


Step 4: Use your needle nose pliers to coil the leads of the LEDs. This will allow you to secure them to the fabric with conductive thread.


Step 5: To easily sew our circuit from the LEDs on the front fabric to the battery holder on the back, we’ll need to first use embroidery floss or regular non-conductive thread to sew the top of your monster’s head together.

sew fold original


Step 6: Using about 2 feet of conductive thread, sew the negative trace of  your circuit from LED 1 to LED 2 to the battery holder, making certain to secure the leads to your fabric by sewing through the spirals we made earlier. After tying off your thread, add a drop of fray check or clear nail polish on your knot. Wait a few seconds for it to dry, before trimming the excess thread. This will help prevent your knot from unknotting.

hand sew neg1



Step 7:  Repeat step 6 for the positive trace of your circuit.


Step 8: Insert your battery and test the circuit.

test circuit1


Step 9: Using embroidery floss, sew any additional features, such as a mouth, eyelashes, or patch work style stitches.


Step 10: Using non-conductive thread and either a straight stitch on your sewing machine or a blanket stitch if you’re hand sewing, sew most of the way around your plush friend, leaving a 1-2 inch opening.


Step 11: Fill with stuffing and close the opening.


Step 12: Enjoy  your new friend!

unlit monster_cropped


Useful links:

“Sew thru your hardware not your fabric” instructable by Lynne Bruning

Staff Picks

Our picks from the shared projects pages will help you repurpose those old floppy drives to play music, change your voice, illuminate your Boba Fett cosplay, and create your own battery-powered data logger/ embedded controller!


vsergeev‘s ARM Bare Metal Widget is an open hardware Cortex-M0 development board with a focus on battery power, non-volatile storage, and debuggability. It is suitable as a battery-powered data logger or a general purpose embedded controller.


Ultimate Voice Changer 0.1 by andygrove  is an Arduino Uno shield providing high speed 12-bit ADC with 8 channels and 12-bit DAC with low-pass filter and audio jack.


This circuit for the display on Boba Fett’s chest plate, by thatdecade features multiplexed LEDs. For more details please check out the B.O.M., schematic and source code.


Have a project to nominate for our picks of the week? Email a short description and a link to any project documentation to Cat!

Staff Picks

This edition of staff picks is brought to you by repaired fuse bits, sensors, and soft circuits!

The Sensor Node by BunneyDude is a multi-sensor, dual radio, low-power node for a 915MHz/2.4GHz network.

MakersBox‘s SnapNsew is a low-cost sewable microcontroller circuit that allows you to easily create and test a working microcontroller circuit with basic inputs and outputs using standard through-hole components and a printed circuit board. Beginners can purchase the kit, which comes pre-programmed, and snap the pieces apart to sew them into a soft circuit project. More advanced users can use an ISP header to reprogram the ATtiny85.

Room board by Frankalicious features a MSP430G2452IN20, PIR module, phototransistor, and nrf24l01 radio module .


Atmega Fusebit Doctor V2h by Greg repairs dead Atmega (and Attiny from v2.04) family AVRs by writing correct fuse bits using the parallel and serial high-voltage programming method.


Have a project to nominate for our picks of the week? Email a short description and a link to any project documentation to Cat!

Announcing Maker Meetups!

Don’t ever doubt it, you- yes, you- are a maker. From scrapbookers, writers, Rube Goldberg machine builders, and painters to cosplayers, robot builders, sculptors, programmers, and beyond, we’re all makers.
With this in mind, OSH Park has teamed up with Cymaspace to host Monthly Maker Mondays!


Maker Mondays are a collision of worlds, techies and non-techies, that helps build a community of makers, creators, crafters, and DIY-ers of all different ages, backgrounds and skill sets. Welcoming everyone, from the completely curious yet inexperienced beginner to the hobbyists and formally educated professionals, we hope to provide an environment conducive to collaboration, project design, and creation.


When: The first Monday of each month. The next meetup will be October 6th, 6-9pm.

WhereCymaspace, 4634 NE Garfield Ave Suite B Portland, OR 97211.
Please enter via the glass door to the right of the front stairs.


Travis, Edward, Androo, and Myles collaborate on a project at Cymaspace

Cost: Free!*

*CymaSpace is a non-profit that relies on donations to cover their expenses. We encourage you to give when you can to support the space and help ensure great events like this keep happening.

Questions? Email Cat!


Further Reading:



EDIT 8 October 2014:
Starting in November, the Monthly Maker Meetups will be moved to the first Tuesday of each month.

Staff Picks

Welcome back to a new edition of Staff Picks!

This selection from our community includes a graphics display, a bonus round for Squishy Circuits, an interactive biofeedback installation, and a crazy clock that keeps time for you and your Martian friends.


The ILI9431 Display (320×240) for the Teensy 3.1 by PaulStoffregenenables high resolution color graphics, and can be used with the Adafruit_ILI9341 library or the Optimized ILI9341 library.


Pulse & Bloom is an interactive biofeedback installation by Saba Ghole, Shilo Shiv Suleman, Rohan Dixit, Heather Stewart, Luke Iseman, and Samuel Clay. The pulses of participants are visualized by illuminated mechanical lotuses, ranging in 8 to 18 feet tall. When a participant presses the pulse sensor, their heartbeat is visualized by flashing lights.


Squishy Duino by rexxar-tc improves the Squishy Circuits experience by adding an analog-to-digital converter across the dough. The read voltage will change as people manipulate the dough. This circuit allows for the ADC values to vary the tone of a speaker, or change the individual colors of an RGB LED.


This open source hardware and firmware Crazy Clock by nsayer is a DIY novelty clock maker’s dream. A variety of firmware loads allow for your clock to tick “randomly” while keeping perfect time. Most of the options tick 86,400 times per day for the approximate 18-months that your AA will last, with the exception of the Martian clock.


Have a project to nominate for our picks of the week? Email a short description and a link to any project documentation to Cat!

Staff Picks

This edition of Staff Picks includes everything from adaptors and bubble displays to a dehydration alert system for your plants and a dual voltage regulator.


MultiAdaptor from Opendous features “multiple overlapping footprints for any occasion: up to 28 pin SOIC/SO (1.27mm pitch), up to 28-pin SSOP/TSSOP (0.65mm pitch), up to four SOT23, up to three SC70, one MSOP-10 (0.5mm pitch), one SOT223, and one SOT-143. All in a 0.8″ wide DIP board. The header pins are staggered to allow press-fitting them while soldering.”


Chirp is a plant watering alarm – as simple as that. You put it into the soil near a plant and it emits a tiny chirp when the soil is dry, reminding you to water the plant. Chirp uses capacitive humidity sensing as opposed to resistive humidity sensing, this means, it does not make an electric contact with the soil, avoiding electrode corrosion and soil electrolysis and resulting in better accuracy and longer battery life.”


Cameron Tech’s Dual Voltage Regulator comes in handy when you find yourself needing to “supply both 5v to an Arduino (without its own voltage regulator) and 3.3v to attached sensors at the same time.”

4x4x7Segment by sirkha features four HP 4-digit 7-segment bubble displays on a board designed to be mated with the Adafruit HT16K33 breakout, quickly allowing you to display four values using i2c. 



The Small VAWT Controller by Blueberry controls the current output of a small vertical axis wind turbine. The board features “a micro-controller to sense turbine RPM, input voltage, and input current, and send a PWM signal to a MC34063 buck converter, and if need be a signal to the gate of an SCR to shut down the turbine.”

Beautiful Boards #3

Whether it’s an image or unique board shape, we love it when makers add a little extra something to their boards.

Rear Logic 3 by JoyMonkey.



Erenbike Controller by Petronator.



Photo and board design credit: Alex Schultz


Matt‘s experimentation board for Spark devices. Photo credit belongs to Matt Brailsford.

Staff Picks for the Weeks of 27 July and 4 August 2014

Nsayer‘s USB Micro ISP v0.3 is a voltage-agile AVR programmer that improves on the original design of SparkFun’s Pocket AVR programmer, adding quite a bit of versatility.

  • The mini USB receptacle is replaced with the more common micro USB.
  • Added a blocking diode before the pull-up resistor. The problematic pull-up resistor to the buffer chip’s output, which provided a path from the ATTiny2313 controller’s output pin through the pull-up resistor to the target power making the Pocket AVR unsafe for 3.3 volt systems.
  • Added a 3.3 volt LDO and two-way jumper that allows you to select a target power of 5 volts, 3.3 volt power, or none.
  • The 2313 controller is powered from the 3.3 volt supply. When not supplying the target power, this allows the programmer to be agile across the entire allowable supply voltage range for every AVR chip it can program. It can program chips being powered from 1.8 volts to 5 volts.


CymaSpace’s unique effects pedal is design to convert stereo audio into a dynamic and musically responsive light show all in a small form factor useful for touring musicians and artists. Click here to see it in action!


The SevenFortyFun is a transistor level op amp kit by Open Analog. Want to follow this project or contribute to it? Check it out over at Upverter and GitHub!


Open Source DIY Automatic Tail Light from Solarcycle, is a bike tail light that automatically illuminates when light decreases.


Have a project to nominate for our picks of the week? Email a short description and a link to any project documentation to Cat!

Staff Picks for the Week of 20 July 2014

Welcome back! This week’s edition of Staff Picks are brought to you by Bluetooth, snowflakes, and convenient lighting.


The Bluetooth Console Adapter from connects your  Raspberry Pi to any latest Android or Apple iOS devices with Bluetooth 4.0, giving you access to the console on your smartphone or PC. Compatible with Raspberry Pi models A, B, and B+.


Lomikar‘s Snowing Effect generates a random snowflakes slowly filling an 8×8 LED matrix from bottom to top, and features buttons to change the speed of the effect. The snow melts too so the top is rarely reached.


USB-powered inspection light for tight spaces by Robert over at My 2µF.


Have a project to nominate for our picks of the week? Email a short description and a link to any project documentation to Cat!

Staff Picks for the Week of 13 July 2014

Wowza the OSH Park community is busy making wonderful projects! This week is brought to you by a single board Linux computer, the optimal Raspberry Pi power supply, and a LED display board.

Henrik’s single board ARM computer with 217-ball LFBGA that runs Linux ! 


NSayer‘s Pi Power, a switching power supply for the Raspberry Pi, allows you to bypass the SMT µUSB power jack in favor of a better regulated and stronger GPIO header. The Pi Power is also handy in that it won’t prevent your Raspberry Pi from fitting in the majority of containers , you have the option of connect it with a GPIO cable, and if you mount it directly you will still have access for attaching other peripherals via the GPIO header.



From temporary to permanently attached display boards, the LEDgoes is great for indoor LED displays. Ceramic resonators are used to increase scrolling speed capability, and ATMega168 chips can drive up to 20mA per digital output .


Have a project to nominate for our picks of the week? Email a short description and a link to any project documentation to Cat!

Staff Picks for the Week of 6 July 2014

Hope you enjoy these awesome projects from our OSH Park community! This week is brought to you by packet radio, Ge diode clipping based distortion, and fun with Bluetooth.


OD_1 by Rockit-Frog is an updated version the classic distortion based on germanium diode clipping. To view a pdf of the project documentation, please click the image above.


HM-10 Breakout v.9.9 by Ladvien enables you to interface Arduino and Bluetooth 4.0 module for just over $10 per module (when components are purchased in bulk).


With the help of the 2dB BLE module by FyberLabs, you will be able to have a wearable BLE Wireless MCU.



Have a project to nominate for our picks of the week? Email a short description and a link to any project documentation to Cat!

Staff Picks for the Week of 30 June 2014

Welcome back to another edition of Staff Picks! This week, our creative community brings you an Atmega1284P/ 328P DualDuino, simultaneous sensor use, environmental data collection, and an adjustable dummy load.


Sleeping Beauty Mighty 1284P by Firebirduino is a dualduino that fits in an UNO enclosure and allows you to enable/ disable the following by using a jumper: 7-segment display, temperature sensor, light sensor, potentiometer for analog input, speaker, and the auto reset.

QTechKnow’s ArduSensor is an Arduino shield that enables the simultaneous use of four sensors. It features thick traces and an improved PCB layout and design to help you  bring your project to fruition.



SpiderMesh Network uses wireless modules for low volume, data collection and transfer in challenging RF environments. 



Re:load is an adjustable dummy load with no required external power supply. Among its many features are the ability to handle input voltages ranging from 3.3 to 30 volts, an adjustable load from 0 to 3.5 amps, a maximum of 14 watts power dissipation, a power FET, BTS117, with a built-in overtemp, ESD, and overcurrent protection, and test points for reading current with a voltmeter. Click the image above to read the full list of features on GitHub.



Have a project to nominate for our picks of the week? Email a short description and a link to any project documentation to Cat!

Staff Picks for the Week of 23 July 2014

This week’s picks are brought to you by I2C device control, an EPD-driver, and a rotary turn cell phone.

I2C Parallel Port 8 Bit – LED from Space-Time Productions “gives you an easy way to write and test code that will control an I2C device and see the results visibly.”


This minimal EPD-Driver board from Jara’s Spare Time Electronics ” implements a flat-flex cable connector and a booster circuit for the display. The booster generates high voltages needed for display operation (around +-25V). The display is driven by STM32F101 Cortex-M3 CPU, mounted on a universal PCB. “


Sideburn‘s classic rotary phone converted to a cell phone puts a modern cell phone twist on a 1970′s phone.


Have a project to nominate for our picks of the week? Email a short description and a link to any project documentation to Cat!

Staff Picks for the Week of 16 June 2014


Have a clear view of the sky? Use the BigRedBee SBD and  Iridium satellite network to send/ receive short messages anywhere!. No cell phone / GSM / APRS or other radio service or external components required.


Four2One antenna switch by goboxgizmos. Features included, but not limited to:

    • Frequency range DC-30 MHz
    • Characteristic impedance 50 ohm
    • Power rating DC to 30 MHz
    • 4 kW continue wave
    • 6.5 kW PEP (SWR < 1:1.7) (tested with tsunami)
    • Designed for OM-power OM-4000++ PA style
    • Two relay version, 12 or 5 Volt


The “chargepumped voltage multiplier” by derevaun is a “Murder One” styled voltage multiplier for low-stakes tube amp usage.



Have a project to nominate for our picks of the week? Email a short description and a link to any project documentation to Cat!

Purple Projects of Tindie!

We love seeing purple boards in the wild. This collection is made possible by the wonderful maker community members via Tindie.


  • Low Voltage Labs have a lovely purple pumpkin in their shop, which is great for practicing those soldering skills!





  • Robo Bugs has a couple of  boards that will get you started making your own hazard avoidance robot using optical and/or mechanical proximity sensors.










  • Vibrato LLC has your ultrasonic cleaning and EMF detecting needs covered.







  • Cryptotronix, LLC‘s Hashlet enables you to create a “secure authentication device on a mini-cape designed for the BeagleBone Black (BBB) or the Raspberry Pi. It provides an external hardware random number generator, performs the SHA-256 algorithm in hardware, and can store up to sixteen 256-bit keys in write and read protected memory.”




  • BLE Throwie by Singleton Labs is a data logger with Bluetooth Low Energy support that stores temperature and humidity data collected by a digital temperature and humidity sensor for the previous 24 hours.



  • AtomSoftTech‘s Breadboard Buddy 52 features USB to UART via CP2102 and 2 separated power rails, 3.3v or 5v @ 500mA,  and a reset button compatible with most MCUs.




  •  jmej‘s 808 Kick Drum Clone builds on the classic tr-808 drum machine in order to facilitate common mods such as extended decay and a pitch pot, and accommodate a  slightly more flexible trigger input.







  •  Bot Thoughts offers great breakout boards for fast, efficient prototyping for components such as the ATtiny 84/85/13 and WS2812B smart RGB LED, as well as other useful prototyping boards such as breadboard power adaptors. They’ve also created a small, accurate turntable strobe.



  • Makers Box has a couple programming shields for the Arduino. One allows you to to easily transfer your project from a breadboard by loading a bootloader on an Atmega328, load a program on an Attiny 84, 85, or 2313 using the Arduino IDE, and update a program on any AVR project that has an ISP header. The other is part of a kit that allows new makers to jump into programming more quickly by bypassing most of the wiring needed for a breadboard project.




  • The Toymakers has a plethora of fun items from the toy breathalyzer (shown below) to LED kits, zodiac key chains, an awesome heart simulator pendant, an amplifier kit, candle light simulator, raspberry pi shield, and more!




  • If you run out of pins on your Lilypad project, you’re in luck! Part Fusion offers sewable 8 and 16-bit IO expanders and RGB pixels.




  • Kuzya Tech has LM317 power supply kits, breakout boards for Sharp’s new Memory LCDs, and a breakout board kit for the LM391x family of bargraph drivers.




Did we miss anything? Let us know in the comment section below!

Staff Picks for the Week of 9 June 2014

This edition of Staff Picks is brought to you by custom light effects and a USB human interface!


Lane Boys RC have created a custom, cost effective DIY car light controller for an RC car that allows you to control the ALL THE LIGHTS* from a simple 3-channel RC car radio controller. There is also a programmable servo output that can be connected to steering or a a figure “driving” the vehicle.

*Parking, Low-beam, Fog lamps, High-beam, Brake, Reverse, Indicators, Hazards



Star Trek : The Next Generation Bird of Prey WingLED by Zitt..



Gyroscope, accelerometer, joystick & more, the HID 3D is a programmable USB human interface device from LucidTronix.


Have a project to nominate for our picks of the week? Email a short description and a link to any project documentation to Cat!

Staff Picks for the Week of 2 June 2014

This edition of staff picks is brought to you by Bluetooth audio, and electroscope that would make a great robotic mouse, and a fantastic DIY watch.

Bluetooth Audio Link Rev.2 by doayee uses an RN-52 Bluetooth module to stream audio directly from a phone into an audio jack, and an FTDI for communication over UART.


Inspired by vk2zay’s Making Electrets video, davidk created this fun Toy Electroscope!


Walltech’s OLED Watch v4.2 incorporates the FemtoduinoUSB, the 8-SOIC SMD DS1307 RTC chip, and tps78225 LDO voltage regulator.


Have a project to nominate for our picks of the week? Email a short description and a link to any project documentation to Cat!

Staff Picks for the Week of 26 May 2014

Welcome back to another selection of our staff picks! This week is brought to you by OCD connections, LEDs, and RF range extension.


Aaron Turner‘s SV650 Dash Replacement Module plugs into the existing wiring harness to add helpful features and warning lights.


Locating on-chip debug connections has become so much easier thanks to joegrand‘s JTAGULATOR, which helps you identify the on-chip debug connections from test points, vias, or component pads on a target device.


LEDscape uses the Beaglebone Black and WS281x LED chips to construct LED strips.


panStamp's 'ultraShield includes a CC1190 front-end and footprints for SRAM and EEPROM memory IC's. On the RF side, the CC1190 adds higher Rx sensibility thanks to its LNA (Low-noise amplifier) and more Tx power. The good thing about the LNA is that devices featuring the CC1190 should be able to receive signals from standard (low-power) panStamps over longer distances. "

Send and receive transmissions over farther distances via a wireless sensor network using panStamp’s ultraShield, which features a CC1190 and footprints for SRAM and EEPROM memory IC’s.


Have a project to nominate for our picks of the week? Email a short description and a link to any project documentation to Cat!

Staff Picks for the Week of 19 May 2014

This week’s picks are brought to you by modular designs, nixie tubes, and bluetooth!


The Arduino CNC Shield from Protoneer is 100% GRBL compatible, features a 4-axis, modular design on a 2.7 x 2.1 inch footprint.


Dennis Greguhn’s SmartBT module is a BL600 module  that can be programmed via a smart basic script, features a power-saving mode via a CR2032 button cell.


CC-Dbg-TC2030-Adapter v1.0 Rev-B by drmkroll enables users to reflash the firmware of a BLEbee.


Nixie Tube Clock by doayee ” uses IN-12B nixie tubes, 6 74141 nixie drivers, 3 74HC595 shift registers, 1 ATMega328P and a DS3232 to drive the nixies.” Click here to see it in action.


Jianan-Li‘s LiPo Booster is a breadboard-friendly boost converter board based on the TPS61230 that takes the input voltage from a single cell LiPo battery and converts it to 5V.



Have a project to nominate for our picks of the week? Email a short description and a link to any project documentation to Cat!