Create a file init_gsm.txt with:
| Problem | Likely Solution | |---------|------------------| | “Access denied” when opening COM port | Close other software (Cellular Watchdog, GPS gateways). Reboot if needed. | | Garbage characters in response | Mismatched baud rate or bit settings. Enable “Auto Baud” detection. | | Commands time out | Check DTR/RTS flow control. Try “No flow control” first. | | Script stops mid-execution | Add longer delays ( <delay 2000> ) between write-heavy commands. | | V1.0.4 crashes on Windows 11 | Run in Windows 7 compatibility mode (Properties → Compatibility). | --- Write At Command Station V1.0.4 Download
No installation required for the portable build—run it from a USB stick. The installer version adds context menu integration for .cmd files. Create a file init_gsm
While V1.0.4 is excellent, you might also explore: Enable “Auto Baud” detection
for a particular device, such as a Sierra Wireless or Quectel module? AT Commands Manual - RS-online.com
That said, none combine the AT-focused macros and logging as elegantly as --- Write At Command Station V1.0.4.
The Write At Command Station is a user-friendly software application designed to facilitate the configuration and testing of AT commands on devices such as GSM, GPRS, and other wireless communication modules. The software enables users to send and receive AT commands, monitor device responses, and diagnose issues related to device communication.