The Wifi devboard ships with [Blackmagic firmware](https://github.com/flipperdevices/blackmagic-esp32-s2) installed. The Flipper documentation [is here](https://docs.flipperzero.one/development/hardware/wifi-debugger-module), and Blackmagic is [over here](https://black-magic.org/).
Check out [Frog's write-up](https://github.com/FroggMaster/ESP32-Wi-Fi-Penetration-Tool) and build for quick and easy flashing! Seriously, it's basically just a double-click now thanks to some error checking and automation. ([You're welcome!](https://github.com/FroggMaster/ESP32-Wi-Fi-Penetration-Tool/compare/v1.0...v1.1)).
Another fun project is from [SequoiaSan](https://github.com/SequoiaSan)! Originally designed for an ESP8266, it has been ported to run on the Flipper Wifi Devboard too.<br>
Check out the [Release Info](https://github.com/SequoiaSan/FlipperZero-WiFi-Scanner_Module) and [Install Instructions](https://github.com/SequoiaSan/Guide-How-To-Upload-bin-to-ESP8266-ESP32) direct from the source. (Some pinout info is included there and on my [GPIO page](https://github.com/UberGuidoZ/Flipper/tree/main/GPIO).)
Yet another fun project is from [SequoiaSan](https://github.com/SequoiaSan)! Only working/designed for an ESP8266, but porting it to run on the Flipper Wifi Devboard is a WIP.<br>
Check out the [Release Info](https://github.com/SequoiaSan/FlipperZero-Wifi-ESP8266-Deauther-Module) and [Install Instructions](https://github.com/SequoiaSan/FlipperZero-Wifi-ESP8266-Deauther-Module#how-to) direct from the source. (Some pinout info is included there and on my [GPIO page](https://github.com/UberGuidoZ/Flipper/tree/main/GPIO).)
Sequoia has been kind enough to create a [web flasher](https://sequoiasan.github.io/FlipperZero-Wifi-ESP8266-Deauther-Module/). Once you've gotten things flashed, here's some quick instructions [from Discord](https://discord.com/channels/937479784148115456/978425715525582918/1004397635098120274) for accessing the Web Interface: Connect to the SSID `pwned` with the password of `deauther` then use a browser to go to http://192.168.4.1
You can connect to Marauder in a handful of ways (make sure qFlipper is CLOSED):<br>
- Through Flipper's USB-C on a computer ([PuTTY](https://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html) is good for Windows, find the COM port with [USB Device Tree View](https://www.uwe-sieber.de/usbtreeview_e.html).)<br>
- If you'd rather go direct to the devboard, plug it in directly and give PuTTY a go like above.<br>
- If you have an Android phone, many have had success with the [Serial USB Terminal](https://play.google.com/store/apps/details?id=de.kai_morich.serial_usb_terminal) app.
To update the installed FW, you can use the `update -w` option, then follow along from [Step 8 in the install guide](https://github.com/justcallmekoko/ESP32Marauder/wiki/installing-firmware-via-ota).
Also from E_Surge: "Flashed esp32marauder directly to the esp32-s2 using the esptool command -- wasn't working until a PC restart and boom. But it took about three hours of different methods, attempts, and finally restarting of devices etc."
`esptool -p PORT -b 460800 --before default_reset --after hard_reset --chip esp32s2 write_flash --flash_mode dio --flash_freq 80m --flash_size 4MB 0x10000 esp32_marauder_v0_9_9_20220628_flipper.bin`