Using ESP32-RF test tool without a USB serial adapter

daniel-alsen
Posts: 9
Joined: Sat Jan 24, 2026 9:22 am

Using ESP32-RF test tool without a USB serial adapter

Postby daniel-alsen » Tue Feb 03, 2026 4:57 pm

Hi.

I'm doing CE certification of my complete device including a ESP32-S3 module.

My device has a USB-C port and I can communicate with the ESP32-S3 over serial, using the esptool to flash firmware, etc.

>> Can I use the RF test tool to send RF test signals, without using a USB/UART bridge or connecting an RF tester to the module itself?

The module is already CE certified so I want to test the full integrated device, no need to connect to the module.

I have installed the ESP RF Test Tool and I can flash the testing firmware. The tool also seems to start.

Any guidance here for this type of integrated test setup?

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