USB to UART/I2C/SPI/JTAG converter built on CH347
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Universal USB to UART/I2C/SPI/JTAG Converter - A versatile tool for testing and debugging devices.
This professional converter allows easy communication between the computer and devices based on the UART, I2C, SPI buses and the JTAG interface. With its robust aluminium housing and built-in protection circuitry, it ensures stable operation in a variety of environments. It is an invaluable aid in prototyping, testing or bench-top electronic device commissioning projects. It is ideal for debugging, programming EEPROMs, OLED modules, sensors, as well as diagnosing or upgrading existing solutions.

Key features and benefits
- Multi-interface: USB → 2×UART / (1×UART + 1×I2C + 1×SPI) / (1×UART + 1×JTAG)
- High speed: UART up to 9 Mbps (CTS/RTS), I2C up to 400 Kbps, SPI with 2×CS
- Flexible power supply: 3.3 V / 5 V (switchable), power supply from USB port
- Protection and stability: resettable fuse, ESD, CNC aluminium housing, wall/rail mounting
- LED indicators: PWR, RXD0, TXD0, RXD1, TXD1LEDs
- Multi-system support: Windows, Linux, macOS
Description of interfaces and modes


Applications
- Testing and commissioning of I2C/SPI devices (e.g. sensors, displays, memories)
- Programming and debugging via JTAG (including with OpenOCD)
- Diagnostics and prototyping in embedded systems
- "Tabletop commissioning" - quick verification of the operation of modules and devices
Specification
- Host interface: USB (USB-B connector)
- Power supply: 5 V (from USB port)
- Signal levels: 3.3 V / 5 V (switchable)
- Protection: Resettable fuse, ESD
- UART: 2 channels (M0 mode), 6-pin IDC, 1200 bps-9 Mbps, CTS/RTS
- I2C: 1 channel (M1/M2 mode), 12-pin IDC (first 4 pins)
- SPI: 1 channel (M1/M2 mode), 12-pin IDC (last 8 pins), 2×CS
- JTAG: 1 channel (M3 mode), 12-pin IDC (last 8 pins)
- Dimensions: 86.0 × 48.0 × 27.6 mm

Kit contents
- USB to UART/I2C/SPI/JTAG converter x1
- USB type A to type B cable x1
- 12PIN cable x1
- 6PIN cable x2




