Using ESP32-RF test tool without a USB serial adapter
Posted: 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?
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?