USB to TTL hub adapter - 4 channels, 3.3 V, for Raspberry Pi Zero
USB to TTL hub adapter - 4 channels, 3.3 V, for Raspberry Pi Zero
This goes with it
Pay in 30 days
Pay in 30 days
Description
Product Overview
- USB-to-TTL adapter for serial communication with Raspberry Pi Zero
- 4 independent channels with 3.3 V logic each
- Power supply via USB, no external power supply required
- Galvanic isolation between computer and target devices
- Protection circuitry against overvoltage and electrostatic discharge
Product Description
The adapter connects up to four devices or sensor modules to a Raspberry Pi Zero via USB when their interfaces need to be addressed as serial ports from a single computer. The module converts the USB voltage into four independent TTL channels, each operating at 3.3 V, without requiring an additional power supply.
Each channel operates independently of the others, so faults on one connection do not affect the remaining channels. Galvanic isolation protects the host system from voltage spikes flowing back into it. This allows several modules with different baud rates and protocols to be operated in parallel, for example to troubleshoot multiple sensors simultaneously or read debug output from various microcontroller boards.
Typical scenarios include the serial diagnosis of multiple devices in a prototype setup, parallel data collection from different measuring stations, or operating several wireless and communication modules on a single computer. The adapter also provides a reliable connection as a development tool for embedded systems that operate without a graphical interface.
The adapter requires a USB port with an operating system capable of emulating a serial COM port. On the target system, the corresponding interfaces of the Raspberry Pi Zero, such as UART pins, must be available. If the current consumption exceeds 500 mA per channel or connections to high-frequency modules are unstable, a separate power supply for the target devices may be necessary.
Safety Information
The adapter is intended exclusively for prototyping, testing, and development purposes and must not be connected to the household power circuit. The connections operate with logic-level voltages; connections to devices with higher voltages require level shifters, otherwise damage may occur. Work on or near electrical installations is reserved for qualified electricians; if you are unsure about commissioning the device, consult a qualified electrician.