Bus Pirate V3 is a general-purpose bus interface that communicates with electronic devices in PC serial terminals, eliminating much of the early prototyping work in the case of or unknown chips.Check out Bus Pirate V4 vs. V3 comparisons. Protocols 1-WIRE, I2C, SPI, JTAG, Asynchronous Serial (UART), MIDI, PC keyboard, HD44780 LCD, and common 2-wire and 3-wire libraries for custom protocols.USB interface, USB power supplyPin withstand voltage 5.5 VMeasuring probe with measuring range of 0-6VFrequency measurement range of 1Hz-40mhz1kHz - 4MHz pulse width modulator, frequency generatorPull-up resistance for multiple voltages on a plateOn-board 3.3V and 5V power supply and software resetCommon macro commandsSPI, I2CSimple USB firmware update boot programUsb → serial port bridge modeLow speed logic analyzer of 10HZ-1mhzAVRDUDE custom supportThe AVR STK500 V2 programmer supports Perl and Python scripts features in version Bus Pirate 4:256K program space, 4 times faster than Bus PirateV3Integrated onboard USB (faster)Data storage EEPROM storage SettingsSoftware pull-up voltage selection: 3.3 V, 5 V or external power supply2 additional I/O pinsMultipurpose button.Color: RedMaterial: PCBPackage Contents:1 * moduleOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.