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Current price €175.00
Original price €185.00
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Original price €75.00 - Original price €185.00
Original price €185.00
€75.00 - €175.00
Current price €175.00
Options: with HydraNFC


The HydraBus is an immensely capable, open source multi-tool for anyone interested in learning/developping/debugging/hacking/Pen Testing for basic or advanced embedded hardware.

Use it as the very capable foundation for your custom hardware tool, or pair it with the NFC Shield for an incredibly flexible and powerful NFC testing toolkit.

Functionality in a glance

Below is a non-exhaustive list of what the HydraBus brings to the table.

Fully Open Source

100% Open Source Hardware and Firmware

Active Development Community

Participate in an active, thriving community. Need help? It's here.

Portable and Capable

Develop on a platform that outperforms your needs, in a 60mm x 37mm form-factor!

Technical Specs

  • MCU ARM 32-bit Cortex M4 + FPU @168MHz & 1MB Embedded Flash
  • Two MicroUSB port (1 OTG and 1 Device/Host)
  • MicroSD slot with 4bit SD and SDIO mode support in hardware (up to 48MHz about 24MB/s)
  • All 44 I/O broken out
Firmware Functionality
  • JTAG scanner/debugger mode like JTAGulator
  • Logic Analyzer mode up to 2MHz 16chan with SUMP support
  • CAN1 or 2 (up to 2 Mbit/s)
  • SPI1 or 2 (master & slave up to 42MHz)
  • I2C (master up to 1MHz)
  • UART1 & 2 (up to 10.5Mbps)
  • ADC (up to 3.3V, can read internal Temperature, VrefInt, VBAT)
  • PWM (1Hz to 42MHz, Duty Cycle 0 to 100%)
  • GPIO up to 44 I/O configurable (PA0-15, PB0-11, PC0-15)
  • RNG (Random number generator using STM32 hardware RNG)
  • Binary Mode compatible with BusPirate BBIO

Detailed functionality

  • Virtual Serial Port access through microUSB with VT100 terminal/shell (compatible with any hardware supporting USB Virtual Serial port)
  • 2 micro USB port can be used (managed by multi-task OS), useful to test multiple protocols, gpio/adc/dac… in 2 terminal
  • Support of microSD (FAT16/FAT32) card up to 32GB
  • Multiple protocols supported (from any VT100 console through USB): ADC, DAC1 or 2, PWM, GPIO, SPI1, SPI2, I2C, 2-Wire, 3-Wire, UART1, UART2, CAN1, CAN2
Also compatible with:
  • JTAG, OpenOCD
  • BusPirate (BBIO/Bitbang)
Supports Custom Firmware
  • Micro Python (Official Version)
  • Black Magic (Official Version)

What's included

  • 1x Hydra Bus (60mm x 37mm)
  • 1x Lasercut Transparent Plexiglas Case
  • 1x Case assembly screws
Optional Accessories
  • HydraNFC Kit
  • HydraFlash (NAND Flash Programming shield)

Shipping & Packaging

  • Each HydraBus is dispatched from Europe - no need to worry about slow shipping times, import duties or damaged goods.
  • Packed in a sturdy compact box.
  • We provide world-wide shipping with express options.

If you are an educational-facility, reseller or need several units, please contact us.

HydraBus Resources

Linux Auto Build / Install Script

Product Presentation: HydraBus

HydraBus Assembly Video

HydraBus / HydraNFC Unboxing Video