SerialBuddy-HT42B534 is a USB to UART interface based on the Holtek HT42B534 chip, designed with a focus on simplicity and versatility. It is suitable for breadboard use, featuring clearly labeled pins and supporting dual voltage supply (3.3V and 5V). The device also offers selectable I/O voltage (3.3V or 5V), and excludes less commonly used pins like RTS and CTS for a streamlined user experience. SerialBuddy-HT42B534 is an open-source hardware project distributed under the BSD 3-Clause License.
- USB to UART interface
- Breadboard-friendly design
- Clearly labeled pins for easy reference
- Dual voltage supply (3.3V and 5V)
- Selectable I/O voltage (3.3V or 5V)
- Excludes less commonly used pins like RTS and CTS for simplicity
- Open-source hardware under BSD 3-Clause License
- TX: Transmit Data
- RX: Receive Data
- GND: Ground
- VDD: Power Supply (Selectable: 3.3V or 5V)
- VBUS: 5V from USB Bus
- 3V3: 3.3V from internal regulator
SerialBuddy-HT42B534 is distributed under the BSD 3-Clause License.
We welcome contributions! Feel free to submit bug reports, feature requests, or pull requests.