Display and button Setup
Using the display interface is entirely optional. You can also control the Deauther via serial or the web interface.
We cannot start at 0 for this tutorial, so if you find this too tricky, get an Arduino starter kit with good documentation to get a feeling for tinkering with electronics. 😊
I focused on the NodeMCU in this tutorial since it is one of the most popular dev-boards. But every other ESP8266-based board should work just the same.
- A breadboard (Amazon*, AliExpress*)
- Jumper wires (Amazon*, AliExpress*)
- An ESP8266 dev board (see Supported Devices) (Amazon*, AliExpress*)
- At least 3 buttons (3 are required, optionally up to 6) (Amazon*, AliExpress*)
- An SSD1306 or SH1106 OLED display with 128x64 pixels (other resolutions are not supported) (Amazon*, AliExpress*)
- Optional: an RGB LED (3 single LEDs or a Neopixel will also work) (Amazon*, AliExpress*)
- Optional but recommended: 2x 10k ohm resistors (Amazon*, AliExpress*)
Look up the pinout references for your board. Here's one for the NodeMCU:
We have a limited amount of pins, and not every pin can be used for everything:
| NodeMCU Pin | GPIO | Note |
|---|---|---|
| D0 | GPIO 16 | No I2C or PWM. Don't use this pin for the RGB LED or Display. |
| D1 | GPIO 5 | OK |
| D2 | GPIO 4 | OK |
| D3 | GPIO 0 | Connected to flash button. |
| D4 | GPIO 2 | Needs pull-up resistor. |
| D5 | GPIO 14 | OK |
| D6 | GPIO 12 | OK |
| D7 | GPIO 13 | OK |
| D8 | GPIO 15 | Needs pull-down resistor |
| D9 | GPIO 3 | RX (Serial). Avoid this pin. |
| D10 | GPIO 1 | TX (Serial). Avoid this pin. |
| SD2 | GPIO 9 | Used for Flash. Avoid this pin in QIO mode. |
| SD3 | GPIO 10 | Used for Flash. Avoid this pin in QIO mode. |
Connect each button to a GPIO and GND. Like in this Arduino tutorial: Input Pullup Serial Tutorial
The LED is used as an optional indicator. For example, Green = idle, Blue = scanning, and RED = deauth attack detected (when scanning).
You can use single digital LEDs, an RGB LED, or a Neopixel LED (WS2812b).
By default, the LED on GPIO 16 (NodeMCU onboard LED) and the LED on GPIO 2 (ESP-12 and ESP-07 on-module LED) are used.
| Display | GPIO |
|---|---|
| GND | GND |
| VCC/VDD | VCC / 3.3V |
| SCL/CLK/SCK | GPIO 4 (D2) |
| SDA | GPIO 5 (D1) |
| Button | GPIO |
|---|---|
| UP | GPIO 14 (D5) |
| Down | GPIO 12 (D6) |
| A | GPIO 13 (D7) |
| B | GPIO 2 (D4) |
| NEOPIXEL LED | GPIO |
|---|---|
| GND | GND |
| VCC | VCC/3.3V |
| DIN | GPIO 15 (D8) |
| Light | GPIO |
|---|---|
| GND | GND |
| VCC | GPIO 16 (D0) |
When everything is correctly set up and uploaded, open the serial monitor with Arduino (Tools > Serial Monitor).
-
Set the baud rate to
115200and selectNewline. If you see it resetting every few seconds, check the code and make sure you didn't use the same pin twice. -
If there's no image on display, type
set display true;;save settingsand press enter. Now press the reset button on the board to restart it. If the display doesn't show anything, something is off. Check your connections and the code. -
To test all buttons, enter
screen mode buttontest. To get back, usescreen mode menu. -
To test the LED(s), you can run
led <r> <g> <b>. For example,led 255 0 0should turn the LED red.
If you still have problems with the display, try running an example to test if it's a software or a hardware problem. This is the display library used in the Deauther: esp8266-oled-ssd1306
You can find examples there. Try to get those running.