Note: This board can *NOT* be compared to the original Flipper Zero WiFi Devboard which runs on a different processor and has other features which are *NOT* compatible with this board.

This small DIY module for the Flipper Zero allows you to perform WiFi operations (Attacks, Access Points, Webserver, etc.) and transmit data over 2.4 Ghz using the NRF24L01.

A Fritzing project file has been included which can be used as reference or to create a custom PCB.

In general:
The board communicates to the NodeMCU over a serial connection. This means to control it from the Flipper directly, you have to create custom firmware that sends and receives / interprets the serial communication.

For now, I am using the builtin UART Bridge functionality from the Flipper:

• Menu > GPIO
• Set 5V on GPIO to on
• USB-UART Bridge
• Press < to enter the config
• Set the Baudrate to either Host or in this case 115200
• Press Back and connect the Flipper via USB to a device that can run a Serial Terminal like the Arduino IDE Serial Monitor or Putty.

Flashing the NodeMCU can be done using the NodeMCU's own USB port like you would normally. MAKE SURE however to disconnect the board from the Flipper BEFORE you connect the NodeMCU's USB to an external device.

Failing to follow this procedure will result in the NodeMCU failing to flash / run and may even DAMAGE your Flipper due to the USB voltage being directly connected to the 5V line of the Flipper. (This varies between NodeMCU versions)

Required:

• Dotted Perfboard
• 8x1 Male Dupont Header
• 10x1 Male Dupont Header
• ESP8266 (NodeMCU) WiFi Development Board
• NRF24L01 2.4Ghz Transceiver

Recommended:

• 10nF Electrolytic Capacitor (To increase NRF24L01 stability)
• 0.1nF Ceramic Capacitor (To increase NRF24L01 stability)

Optional:

• 2 Tactile pushbuttons (For quick actions / macros)
• (2x) 10K Ohm resistor (Required if you want too add the buttons)

For software I am currently using ESP8266 Deauther 3.0 By Spacehuhn.

In the future I am planning to adapt from Deauther 3.0 and add a purpose to both the NRF24l01 and the pushbuttons.

The build was done on a piece of prototyping perfboard and most of the connections are done by soldering wires instead of proper traces. I attempted to create a quick dual layer PCB layout which I think will work but has NOT been tested!