Strato Pi Base board
Strato Pi Base Board
From 88

Strato Pi Base Board

88.0093.00 + tax

In stock - Usually ships within 1 week

Raspberry Pi industrial expansion board with wide-range power supply, RTC, RS-232 and RS-485 interfaces, watchdog and secure element.

SKU: SPBB30X Category:

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Also available on: buy-on-mouser


The Strato Pi Base board enhances the Raspberry Pi computer with several hardware features to make it suitable for use in industrial and professional applications where reliability and service continuity are key requirements.

This add-on board is the the core of our Strato Pi Base server and Strato Pi Touch Display and can be purchased separately for product evaluation, prototypes developments, or custom embedded designs.



  • standard Raspberry Pi 40-pin GPIO header
  • power supply and serial connections on screw terminal block

Power supply:

  • 9-28Vdc power supply, with surge and reverse polarity protection, and 2.2A resettable fuse
  • up to 4.0A max current to the 5V Raspberry Pi power supply input pins (at 24Vdc)

Serial interfaces:

  • standard RS-232 and RS-485 interfaces to the Raspberry Pi serial line, with opto-isolator and electrostatic discharge protection

High reliability and security:

  • hardware watchdog implemented in the Strato Pi board, fully independent from the Raspberry Pi, controlled via GPIO
  • real time clock (RTC) with replaceable back-up battery
  • embedded Microchip ATECC608A secure element chip
  • integrated boot loader for the Strato Pi micro-controller, allowing in-field firmware upgrades directly from the Raspberry Pi


  • buzzer, controlled via GPIO
  • LEDs for power supply and serial line activity


Power supply 9-28V⎓ (VDC)

Reverse polarity protection with 2.2A resettable fuse. Surge protection up to ±1000V/2ohms 1.2/50μs

Current consumption at VS+ 12V⎓

including Raspberry Pi 4, with Ethernet and RS-485 connected, no USB devices

low CPU load: 320mA

100% CPU load, before throttling: 590mA

100% CPU load, throttled: 500mA

Actual current consumption may vary based on working conditions

Current consumption at VS+ 24V⎓

including Raspberry Pi 4, with Ethernet and RS-485 connected, no USB devices

low CPU load: 190mA

100% CPU load, before throttling: 320mA

100% CPU load, throttled: 260mA

Actual current consumption may vary based on working conditions

Raspberry platform compatibility Pi 4 Model B

Pi 3 Model B+

Pi 3 Model B

Pi 2 Model B

(tested with Pi 4 Model B for regulatory compliance)

Serial communication ports RS-485 Half-Duplex with automatic data direction management

RS-232 Full-Duplex

Baud Rates on COMM ports 1200 to 115200
ESD-Protection Voltage on RS-232 TX/RX ±15kV human body model

±8kV contact discharge

ESD-Protection Voltage on RS-485 A/B ±15kV human body model

±8kV contact discharge

Surge protection on RS-485 A/B Surge protection up to ±500V/2ohms 1.2/50μs; 600W peak pulse power capability at 10/1000μs waveform
Fail safe feature on RS-485 Yes
Electromagnetic immunity compliance EN 61000-4-2 (ESD)

EN 61000-4-3 (Radiated RF Field)

EN 61000-4-4 (Burst/fast transient)

EN 61000-4-5 (Surge)

EN 61000-4-6 (Conducted)

EN 61000-4-8 (Power frequency magnetic field)

Real time clock Internal RTCC circuit with backup lithium battery. Only use CR1025 Lithium / Manganese Dioxide (Li/MnO2) batteries.

Expected battery life without main power supply: ~2 years

Operating temperature 0…+50 °C
Storage temperature -20…+70 °C
Weight 30 g


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