Introduction:
The HydraBus is an open source multi-tool hardware for anyone interested in learning/developing/debugging/hacking basic or advanced embedded hardware.
HydraBus can execute python 3 scripts as a port of
micropython is done (02 June 2014, published on
github).
Finally HydraBus can be used with its native firmware
hydrafw described below.
Features of the HydraBus board:
- Very small board only 60mm x 37mm size (extensible with shield which can be connected on top or bottom)
- Programming firmware through USB DFU (without any debugger) with USB1 FS
- Debug/Programming through low cost SWD Debug connector (can be programmed/debugged using an ultra low cost NUCLEO F401RE for less than 15US$)
- Two MicroUSB port (1 OTG and 1 Device/Host) with ESD protection
- MicroSD slot with 4bit SD and SDIO mode support in hardware (up to 48MHz about 24MB/s)
- Reset & User Button (Enter USB DFU at PowerOn) with User Led (can be disabled to reuse I/O for other stuff)
- Breakout of all 44 I/O (some are used by MicroSD and USB 1&2)
- MCU ARM 32-bit Cortex M4+FPU up to 168MHz& 1MB Embedded Flash
- Power consumption of less than 100mA/3.3V with all peripherals enabled
- Ultra low power mode (down to less than 2mA for specific treatment)
- Hardware doc, schematic/board, pinout, template are available on github: https://github.com/bvernoux/hydrabus/tree/master/hardware
- For more details on HydraBus Hardware see http://hydrabus.com/hydrabus-1-0-hw-detailed/
- Hardware license CC BY NC (for commercial license contact info@hydrabus.com)
- Support optional HydraBus-Sick-Of-Beige-Case a cheap transparent acrylic case
- Support optional HydraNFC Shield a high performance NFC board with Antenna based on TI TRF7970A NFC chipset (and fully supported by hydrafw)
- Other accessories / shield for HydraBus are available at https://www.seeedstudio.com/HydraBus-m-132.html
Features of HydraBus/HydraNFC open source embedded native firmware (hydrafw):
- Fully open source software, main software Licensed under the Apache License, Version 2.0 and linked part:
- 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 (tested with SanDisk Extreme 32GB and lot of other cards)
- Multiple protocols supported (from any VT100 console):
- JTAG scanner/debugger mode like JTAGulator
- BusPirate-compatibleOpenOCD binary mode
- Logic Analyzer mode up to 2 MHz 16chan with SUMP support
- CAN1 or 2 (up to 1 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)
- DAC1 or 2 (up to 3.3V, triangle, noise)
- PWM (Frequency from 1Hz to 42MHz, Duty Cycle 0 to 100%)
- GPIO (In/Out/Open-Drain) up to 44 I/O configurable (PA0-15, PB0-11, PC0-15 support range & wildcard)
- RNG (Random number generator using STM32 hardware RNG)
- See Wiki for more details: https://github.com/bvernoux/hydrafw/wiki
- Planned features / Task List:
- Alternative firmware for HydraBus:
-
Micro Python firmware ported to HydraBus
-
BlackMagic (JTAG/SWD Debugger) firmware ported to Hydrabus
Links:
If you encounter any problems when using this product, contact the technical support.