The Bus Pirate is a universal electronic open hardware tool to program and interface with communication buses and program various chips, such as AVRs from Atmel and PICs from Microchip Technology. A primary usage case for this device as intended by the designers is to “Eliminate a ton of early prototyping effort with new or unknown chips.”Using a Bus Pirate, developers can use a serial terminal to interface with devices over a variety of hardware protocols, such as SPI and 1-Wire.
Support for many serial protocols with line levels of 0 – 5.5 volts:
- Asynchronous serial
- PC keyboard
- HD44780 LCD
- 2- and 3-wire libraries with bitwise pin control
- Scriptable binary bitbang, 1-Wire, I2C, SPI, and UART modes
- 0 – 6 volt measurement probe
- 1 Hz – 40 MHz frequency measurement
- 1 kHz – 4 MHz pulse-width modulator, frequency generator
- On-board multi-voltage pull-up resistors
- On-board 3.3 volt and 5 volt power supplies with software reset
- Macros for common operations
- Bus traffic sniffers (SPI, I²C)
- A bootloader for easy firmware updates
- Transparent USB -> serial mode
- 10 Hz – 1 MHz SUMP compatible low-speed logic analyzer
- AVR STK500 v2 programmer clone
- Supported in AVRDude programmer
- Scriptable from Perl, Python, etc.
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