EasyI2C™ - The World's Lowest Cost Professional-Grade I2C / TWI / SMBus Analyzer!

  • Simple to use, even if you are brand-new to the I2C protocol.
  • Perfect for students, as well as both Beginner or Advanced Engineers.
  • Connecting is simple: USB to computer, GND/SCL/SDA to your circuit.
  • Wiring information is always available, right on the board!
  • Plain English explanation of exactly what happens on the bus, whether normal, unexpected, or an illegal condition (a bus error).
  • Handles 0 - 400KHz bus speed with No Clock Stretching !
  • Super-simple Windows application captures and displays your results.
  • Save results to disk for further protocol analysis.
  • No confusing waveform displays for you to decipher.
  • No configuration required: just Connect and Capture!
  • Great for Documenting correct sequences; just record & save to disk!
  • NEW: Optional support for TRUE 1.8V bus monitoring!
Order Now! 
Just $99 plus $10 shipping/handling, plus applicable tax.
(USA orders only; if you are located elsewhere, please check the International Orders page for additional information.)

Location (USA only)

If you cannot use Paypal for some reason, we will also accept Google Checkout, but this option requires an extra 2 business days for order processing.  If you're in a hurry, please use PayPal.
It's simple to find an I2C-style bus within arm's reach.  Every computer, monitor, television and cell phone has it.  Most microcontrollers directly support this protocol as well.  Even so, the I2C protocol has many subtle nuances that are hard to grasp and easily forgotten.  EasyI2C™ helps you to figure out exactly what is happening, without having to examine huge waveform trace capture files or set up complex tests.

Despite its low cost, EasyI2C™ will capture and analyze bus traffic at full 400KHz bus speed without clock stretching.  It's also a true protocol analyzer.  It not only detects errors, but explains to you exactly what is wrong, in plain language.  It even warns you about conditions that, while permitted by the spec, may not be what the designer intended.

TWI and SMBus protocols are also supported, as these are derived from the I2C protocol.  EasyI2C™  handles signal levels from 1.8V to 3.6V, or from 2.5V to 5V with the addition of a standard 0.1" jumper.  It is USB-powered for ease of use.


RETURNS AND CANCELLATION POLICY:
Product returned within 15 days of receipt by buyer in original, undamaged condition will receive a full refund, minus original shipping fees and a 25% restocking fee.  Damaged product may be repaired or replaced, at the sole option of Optimal Designs LLC, within 90 days, for a fee to be determined at the time of repair.  Orders may be cancelled without fees if the cancellation occurs at least 24 hours prior to the day of shipping by OD LLC. Cancellations failing to meet this criteria are subject to the normal Returns policy outlined above.

Optimal Designs LLC   Phoenix, AZ  USA     email: [email protected]    phone: 623-200-2066
EasyI2C is a trademark of Optimal Designs LLC; All Rights Reserved.   The stylized "i2c bus" logo (not used on this site) is a trademark of Philips Corp. 
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