Interactive Robot

Materials used

• "CYD" ESP32 board
• ESP32 board
• LIS3DH Accelerometer
• CJMCU-2812B-12 LED strip

Prerequisites

1. Clone this repository and make sure you have Arduino installed
2. Install Adafruit LIS3DH and Adafruit NeoPixel (for the sensors), TFT_eSPI and XPT2046_Touchscreen (for drawing on the display) from arduino's library manager
3. In order for the TST_eSPI library to work, you need to prepare User_Setup.h config file:
   -> preparing the config file for Windows PC (https://randomnerdtutorials.com/cheap-yellow-display-esp32-2432s028r/#config-file-windows-pc)
   -> preparing the config file for Mac OS (https://randomnerdtutorials.com/cheap-yellow-display-esp32-2432s028r/#config-file-mac-os)
4. Run the readMacAddress function (found in both scipts), to get the MAC address of each ESP, then assign the opposite values to broadcastAddress variable.

Wiring up LIS3DH to the main ESP32 board

LIS3DH	ESP32	Info
VCC	3.3V	Power - you can also use 5V
GND	GND	Ground
SCL	22	Serial Clock
SDA	21	Serial Data

Wiring up CJMCU-2812B-12 to the main ESP32 board

LIS3DH	ESP32	Info
VCC	5V	Power - always use 5V!!!
GND	GND	Ground
DO	5	Data Out - any digital output pin can be used

Send messages to the robot

Open the textToESP file, and run the following command:

pip install pyserial

and,

SERIAL_PORT = "/dev/<PORT>" # should be the same as the one in arduino (go to Tools -> Port)
BAUD_RATE = 115200  # must match the ESP baud rate

Now run the script and follow the prompt.

[Optional] Setting up the local server

Run the following command,

 flask --app main run --host=0.0.0.0

now the server is externaly visible.

Go to esp32_script file, add the server's ip address and your wifi credentials:

String localServerName = <YOUR_SERVER_IP_ADRESS>;
const char* ssid = <YOUR_WIFI_NAME>;
const char* password = <YOUR_WIFI_PASSWORD>;  //

Now that everything has been configured correctly, plug in both the ESP32s into the laptop and flash the code into both of them. !!! When flashing the code on the main ESP32 board, keep pressing on the BOOT button right when the uploading starts !!!