This is an implementation of the iperf network speed measurement client protocol (TCP) for a Heltec Wifi Kit 32 or LoRa Kit, written for the arduino IDE

If necessary install the Heltec Library for arduino according to https://docs.heltec.cn/#/en/user_manual/how_to_install_esp32_Arduino After the download of the program in the esp32, it starts to connect to your wifi. After successful connection it opens a TCP iperf connection to the specified server. The results are displayed on the OLED. After 5 seconds it stops. A new measuremnt can be startet by pressing the prg/boot button. The maximum bandwidth I saw was 11 MBit/s.

Just open the sketch file in arduino and check the settings in tools/werkzeuge. You should edit the (hard coded) SSID and password in the source file before using. The iperf server ip address has also to be adjusted.

not necessary

• arduino v1.8.9
• Heltec library for arduino

• Agrippus (https://github.com/agrippus)

This project is licensed under the MIT License

• Heltec/Arduino