Printoo is a modular platform specifically designed for printed electronics components. At its core is a high performance, low power 8-bit AVR ATMega328 microcontroller. Below is a list of the various modules and components that make part of Printoo. Pictures are of Printoo in prototyping stages, the final product may still have slight alterations.

Printoo Core Module

Printoo-core (2)
Microcontroller: Atmel ATmega328
Operating Voltage: 1.8 - 5.5 V
Flash Memory: 32 kB
SRAM: 2 kB
Clock Speed: 16 MHz

For the full technical specifications, please consult the microcontroller datasheet.

Physical Characteristics

Printoo board has approximately 35 mm x 35 mm (1.38 inch x 1.38 inch) in length and width, and has less than 2 mm (0.08 inch) of thickness. The board itself weighs 4 g.


Printoo is fully compatible and programmable with the Arduino IDE (download). The ATmega328 microcontroller on the Printoo board comes pre-burned with a bootloader that allows you to upload new code into it with the Arduino IDE.

Ynvisible Display Driver

ynvisible-display-driver (2)
  • 8-bit Serial-In/Parallel-Out (SIPO) shift register operation (Libraries for Arduino in development)
  • 2 Electrochromic (EC) displays can be connected (max 2×8 bit per module)
  • Serial out for cascade functionality

Printed Battery Connector

printed-bat-connector (2)
  • 2x 1.5V printed battery (in series)
  • Enfucell and Bluespark batteries can be connected
  • For low power applications

Coin Battery Holder

  • CR2016/CR2032 connector

Sensor Module

sensor-module (2)
  • Accelerometer – 3-axis analog output
  • Light Sensor (Phototransistor)
  • Temperature sensor (NTC) – 10kΩ
  • Button

Solar Cell Connector

solar-cell-connector (2)
  • Battery and solar panel connectors
  • Battery management IC
  • 3.3V regulator for the ATmega

Conductive Ink Adapter

conductive-ink-adapter (2)
  • Pads for Conductive ink

Capacitive Sensing Keys

cap-keys (2)
  • 5 capacitive sensing keys

DC Motors Drivers

dc-motors-drivers (2)
  • Connection for 2 motors
  • 2 H-bridge modules controlled by 2 PWM outputs from Core Module
  • 2A polyfuse (max motors driving current is 2A)

Ynvisible Electrochromic Display

ynvisible-display (2)
  • Driving Voltage: 1.5V
  • Thickness: 500 microns
  • Contrast: ΔE > 35


Blue Spark Ultra-Thin Battery

  • Voltage: 1.5 V
  • Capacity: 37 mAh
  • Height: 55 mm
  • Length: 47 mm
  • Thickness: 500 um


Enfucell Soft Battery

enfucell (2)

Technical Specifications
(Enfucell is manufactured by Xymox in North America)

  • Voltage: 1.5 V
  • Capacity: 90 mAh
  • Height: 60 mm
  • Length: 72 mm
  • Thickness: 700 um



ISORG Organic Photodetector Slider

isorg (2)
  • Isorg’s Organic Photodetector Slider is composed of six organic photodetectors, coupled with 6 IR LEDs, which allows the detection of hand movement over it.


Mekoprint Polymer Solar Cell

solar-cell (2)
  • Design optimized for 5V applications, although it works well with lower voltages.
  • Can output up to 9V.
  • Can be cut in half to fit the size to the application.




  • Red LED die chips on transparent PET;
  • 350 microns thickness;
  • Flexible