Size 3 Linux Tibbo Project PCB (LTPP3)



Size 3 Linux Tibbo Project PCB (LTPP3) comes preloaded with our own, highly polished distribution of Linux that is derived from the Red Hat line.

The TPP3 is ideal for applications that require no human-machine interface while calling for a significant number of I/O lines and/or functions.

Offering seven tiles for a total of fourteen "M" and fourteen "C" sockets, the LTPP3 can be used to construct devices with up to five full serial ports, up to 25 relays, or up to 51 control lines, such as opto-inputs, PWMs, or open-collector outputs.

The generous number of available Tibbit sockets means you can increase your system's versatility by offering multiple power supply options, such as +5V, +12V, PoE, etc. You can also install multiple power supply Tibbits to increase total available power or provide redundancy.

This product can be used as a bare board, or assembled into a Size 3 Tibbo Project Box.


  • 1GHz Cortex-A8 Sitara CPU from Texas Instruments
  • Runs a fine-tuned Linux distribution (kernel 4.10)
  • Comes with Tibbo OS for Linux (LTiOS) and Node.js preinstalled
  • 10/100BaseT auto-MDIX Ethernet port (automatic detection of "straight" and "cross" cables)
  • Optional Wi-Fi interface (requires the GA1000 add-on module in the "L" modification)
  • Seven tiles with 51 general-purpose I/O lines

    • Fourteen sockets for Tibbit modules

    • Fourteen sockets for Tibbit connectors

    • One extra socket for Tibbit #37

    • Five Tibbit module sockets have UART capability

      • Baudrates of up to 921,600bps
      • None/even/odd/mark/space parity modes
      • 7/8 bits/character
      • Full-duplex mode with RTS/CTS and XON/XOFF flow control
      • Half-duplex mode with direction control
      • Encoding and decoding of Wiegand and clock/data streams
      • One of the UARTs works as a Linux console
    • Two module sockets have CAN capability (this requires Tibbit #51)

    • Eight module sockets have interrupt capability

    • One module socket has audio capability (this requires Tibbit #48)

    • One module socket can accommodate an SD card Tibbit (#49)

    • One module socket has PoE capability

  • Up to 12 SPI or 13 I2C interfaces
  • Onboard buzzer
  • RTC with a backup supercapacitor

  • 512MB DDR3 SDRAM

  • 512MB NAND flash

  • 2048-byte EEPROM for data storage

  • Eight onboard LEDs

    • Green and red main status LEDs
    • Yellow Ethernet link LED
    • Five blue LEDs (for Wi-Fi signal strength indication, etc.)
  • Automatic on-demand CPU speed throttling

  • Reliable power-on/ brown-out reset circuit

  • Power: 500mA @ 5V (100Base-T mode, full speed)

  • Dimensions (LxW): 165 x 94mm

  • Operating temperature range: -40°C to 70°C

  • Linux software and applications are upgradeable using the DNF system

  • Tibbo BASIC/C application can be debugged through the Ethernet LAN