If you can tell me what kind of device you're connecting (e.g., , ESP32 , GSM module ), I can offer specific baud rate recommendations and send you a sample AT command sequence to test.
: Allows you to save frequently used hex or string commands for quick one-click testing. sscom v5131 english version extra quality
Includes a function to visualize protocol data in real-time. If you can tell me what kind of device you're connecting (e
: Handles RS232, RS485, and USB-to-TTL communication seamlessly. GSM module )