for Bus PirateV3 is a universal bus interface that communicates with other electronic modules from the PC serial end point. No need to write code to use the corresponding chip. Reduce unnecessary effort to learn about or unknown chips. The agreement includes the following: Single bus, I2C, SPI, JTAG interface, asynchronous serial port (UART), MIDI, PC keyboard, LCD , universal 2-wire and 3-wire custom protocol library. Product features: USB port, USB power supply 0-5.5 V pin withstand voltage 0-6V probe Measure 1Hz-40MHz frequency measurement 1kHz - 4MHz Pulse Width Modulator, Frequency Generator Onboard voltage pull-up resistor Onboard 3.3V and 5 power supplies Software Reset Board Common operation instructions SPI, I2C bus A simple USB firmware update program USB to serial port 10Hz-1MHz Low Speed Logic Analyzer Custom support in avrdude, FLASHROM AVR STK500 V2 Programming Script Perl, Python etc. Color: Red Material: PCB Package Contents: 1 x module Only 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.