Liudr arduino and physics gadgets
Dr. Liu A.K.A. liudr@arduino forum specializes in LCD user interface data logging and contract programming
Joined: February 24, 2011
Country: USA
Phi-2 interactive arduino shield 2004
Phi-2 interactive arduino shield 2004
Phi-2 interactive arduino shield 2004
Phi-2 interactive arduino shield 2004
Phi-2 interactive arduino shield 2004
Phi-2 interactive arduino shield 2004


Due to USPS mailing restrictions, a coin battery is no longer included in the kit. Sorry for the inconvenience.

The new kits now come with female stacking headers with long legs. This makes the kit much more elegant and you save considerable time soldering the kit. I have absorbed the increased cost and the price stays unchanged.

As some of you have waited a while for this. Now it is here, everything about famous phi-2 shield but bigger on the display estate. Instead of a 16*2 character display, it boasts a 20*4 display with yellow back light. It fully takes advantage of the Text-based User Interface software library phi_prompt, which I updated with tons of features for you to use.

FYI, the "2004" DOESN'T REPRESENT THE YEAR 2004. THAT WOULD MAKE THIS SHIELD PREDATE ARDUINO!! The "2004" simply means 20 columns and 04 rows, a specification of the display size :)

My alarm clock version 4 running on this shield:

Here goes the original description:
Phi-2 shield is the best all-purpose interactive shield for Arduino! It's the undoubted best seller on inmojo. You are not just getting a piece of hardware; you’ve just got the best interactive user interface software package, phi_prompt, and the best support from Liudr!

From happy users:

"Awesome software support – you’ve done all the work already!!! Great for a 'cut and paste' guy like me."

"I want to take a minute and thank you for your work on the Phi-2, it’s a great spring board to many other Arduino projects."

Visit its home page here for pictures, videos, documentations, codes and libraries and updates:

Sample video:

Phi_prompt Text-based user interface library for phi-2 shield:

List of functions:

  • Compatible with Duemilanove, UNO, MEGA, and pin-compatible clones and Ethernet shield with SD card
  • 20X4 LCD character display (yellow back light)
  • 6 push buttons arranged in arrow keys and two more on the side
  • 2 RJ45 ports for up to 16 long and robust connections to sensors or devices (purchase RJ45 jack at with part number A31442-ND or at with part number DE3649)
  • Buzzer to play tones, ready for any Arduino pin, in place of RJ45 port 1
  • Sensor block for many common sensors, in place of RJ45 port 2, temperature, pressure, light, magnetic field etc.
  • Two 3mm LED indicators, ready for any Arduino pins
  • Real time clock with battery backup keeps the time when Arduino is turned off
  • EEPROM (24LC256 or 24LC512) to log data, and keep data when power is off
  • GPS connector and breakout for EM-406A GPS module
  • Reset button for Arduino
  • All Arduino pins, brought out for maximal flexibility
  • The I2C bus headers next to analog pins 4 and 5 for both UNO and MEGA

  • The Phi-2 shield is revised from the popular Phi-1 shield, which has gained its popularity among Arduino users and

    Shipping Options
    Destination & Service Shipping Time Cost
    Worldwide - Standard 7-14 Business Days $12.95 for first item, $6.95 for each additional item
    Domestic (USA) - Standard 3-7 Business Days $3.75 for first item, $1.50 for each additional item
    * shipping times are estimates.
    Community Feedback
    (only 3 left!)
    - Ships in 3 -
    This includes all parts (PCB, LCD, real time clock etc.) needed to assemble a kit. It DOES NOT include GPS module or connector, or EEPROM
    (only 5 left!)
    - Ships in 3 -
    This includes everything except for the LCD, just in case you already have a compatible display.
    PCB +battery holder + buzzer
    This includes PCB, battery holder, and the buzzer. The rest of the parts are listed under parts list in documentation. Available per request
    - no items in stock -
    login to request one
    PCB only
    (only 5 left!)
    - Ships in 3 -
    This includes PCB only. You will need parts to assemble them. Refer to parts list in documentation.
    Note: If shipping internationally, special local taxes (VAT) and customs may apply and are not included in prices or invoices unless otherwise noted. All prices are in USD.
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