RTXI, the Real-Time eXperiment Interface, is a hard real-time data acquisition and controls application for use in a biological research. At the core of RTXI is a Real-Time Operating System (RTOS), which uses the Linux kernel to provide deterministic control in a variety of experimental settings. It is fast, free, and open-source. Our system is currently used in labs all over to world to probe diverse, technologically challenging problems, such as dynamic probing of ion-channel function, control of cardiac arrhythmia dynamics, and control of deep-brain stimulation patterns.

Experimentalists' ability to perturb biological systems has traditionally been limited to rigid pre-programmed protocols or more flexible, albeit reflex constrained, operator-controlled protocols. In contrast, real-time control allows dynamic probing of biological systems by parameter perturbations calculated from instantaneous system measurements. With it, researchers can address diverse unanswered questions that are not amenable to traditional approaches.

Unfortunately, real-time control is not possible with standard operating systems and software. Furthermore, commercial real-time systems are costly and often designed for industrial applications, and the proprietary software licenses and drivers that come with them only exacerbate the issue. To get away from that, we developed RTXI. It's fast, free, and flexible, and it's compatible with a wide range of experimentation hardware.

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RTXI 2.0 Released

  12 May 2015

We’ve been working hard over the past year to put together the new and improved Real-Time eXperiment Interface.

RTXI 2015 Deadline Approaching

  27 Mar 2015

The deadline for registering for the RTXI 2015 conference is fast approacing. Register now to book your position here. Noteworthy dates:

RTXI 2015 Registration Open!

  21 Jan 2015

Just reminding everyone that registration for RTXI 2015 is now open! Check out our conference page to learn about our upcoming conference. Registration is open until April 1st at 5:00 PM Eastern Time. ...

Register for RTXI 2015

  22 Dec 2014

If you haven’t done so already, check out our conference page to learn about our upcoming conference. Registration is almost open. We just need to get the payment page running.

New Website

  10 Dec 2014

We now have a new website. It’s not quite feature-rich yet, but it’s a nice, fresh site to coincide with the long-planned release of RTXI 2.0. Look here in the future for all documentation, tutorials, videos, etc. related to using RTXI and closed-loop, real-time electrophysiology in general. ...