PJRC forum member MarkusGruen has developed RTMC (Real Time Measure and Control), a universal data acquisition, logging and I/O system. The Teensy 4.1-based platform enables data capture from any I2C, SPI, RS-232, or analog sensor.

Data can be sampled from eight sensors simultaneously at up to 4.4KHz, then transmitted via USB to a host PC for further analysis. The I/O aspect of the system means that actuators can also be connected to create closed-loop control systems. Raspberry Pi Pico-based node units connect to the Teensy-powered hub via standard Ethernet cable. More information about the project, as well as Gerbers, BOMs, schematics and firmware source can be found on GitHub.