Connect to PM3 hardware with UDP, using ESP32-S3/S2 as a USB to UDP bridge.
This modding only contains the firmware of ESP32-S3, and it should work on most of the ESP32-S3 and ESP32-S2 dev boards.
- To use this modding, you need a Proxmark3 client newer than commit 0c0967bcc56773e0b014fd4d89d5f893052928d3
- You need ESP-IDF or GitHub Action to build this project
- The ESP32-S3 can work as a soft-AP. The SSID and the password are defined in PM3_Modding/PM3_USB2UDP/firmware/main/wifi/wifi.h
- To connect to an existing AP like wireless router or mobile hotspot, you should follow these steps:
- Set the correct SSID and password in PM3_Modding/PM3_USB2UDP/firmware/main/wifi/wifi.h
- Comment out
wifi_init_softap();in PM3_Modding/PM3_USB2UDP/firmware/main/app_main.c - Uncomment
wifi_init_sta();in PM3_Modding/PM3_USB2UDP/firmware/main/app_main.c - To get the IP address allocated by the DHCP server, you can check the output on UART0(GPIO43 for Tx, GPIO44 for Rx) or the management page of the router
- (Optional) If it's not convenient to get the allocated IP address, you can set the static IP address in PM3_Modding/PM3_USB2UDP/firmware/main/wifi/wifi.h
- The default IP address of ESP32-S3 is
192.168.4.1(soft-AP mode). The server port is defined in PM3_Modding/PM3_USB2UDP/firmware/main/tcp-server.h - ESP32-S2 also has the USB-Host peripheral, so it also works. Remember to set the correct target chip in ESP-IDF.
- Some of the arguments mentioned above can be configured by running
idf.py menuconfig->USB Bridge Configuration.
| ESP32-S3 | PM3 |
|---|---|
| GND | GND |
| GPIO19 | USB_D- |
| GPIO20 | USB_D+ |
| 5V | 5V |
The 5V pin is optional.