📻 Portable notification system with ESP8266

Description

This project is my first experience in 3D modeling, 3D printing, making draft, microcontroller programming and soldering.

• 3D models: link
• code: link

Components

• NodeMcu v3 CH340

• TFT 0,96 ST7735 IC 80*160

• Buzzer KY-006 KY-012

• Buttons x2

• Switch 1P2T

• Lithium battery ICR18650 3,7V

• USB Type-C 5V 2A charge-discharge module

• 18650 battery case

Equipment and consumables

• 3D printer (KINGROON KP3S)
• PLA plastic
• Soldering iron
• Electrical tape
• Solder
• Rosin
• Wires
• Glue
• Screeds

Software

• FreeCAD (https://www.freecad.org)
• PrusaSlicer (https://github.com/prusa3d/PrusaSlicer/releases)
• Arduino IDE (https://www.arduino.cc/en/software)
• CH340 Driver (https://sparks.gogo.co.nz/ch340.html)
• RGB565 Picker (https://rgbcolorpicker.com/565)

Setings

Arduino IDE

Selected board:

http://arduino.esp8266.com/stable/package_esp8266com_index.json

PrusaSlicer

Pins

Display:

• D2 - DC
• D3 - RST
• D4 - CS
• D5 - SDA
• D7 - SCL

Buzzer - D6

Buttons:

1. D1
2. D8

Libraries

• ESP8266WiFi
• Adafruit_GFX
• Adafruit_ST7735
• WiFiUdp
• NTPClient
• ArduinoJson
• beaconSpam

There may be a situation when the screen size and the information displayed do not match by a couple of pixels. Then you need to change the width and/or height value in the Adafruit_ST77xx.h file on a little bit more

Guides

FreeCAD: https://youtu.be/yQpD8cCA7x4?si=OD5aLB4QK-etjoWo