- Install Library Arduino core for ESP8266
- https://github.com/esp8266/Arduino - Install Library Arduino core for the ESP32
- https://github.com/espressif/arduino-esp32 - Install Library :
- https://github.com/adafruit/Adafruit_BusIO
- https://github.com/adafruit/Adafruit_SSD1306
- https://github.com/adafruit/Adafruit-GFX-Library
- https://github.com/bblanchon/ArduinoJson(use V6)
- OLED Display Screen Resolution, Change to your OLED display width and height.
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 32 // OLED display height, in pixels
- OLED I2C ADDRESS
#define SCREEN_ADDRESS 0x3C
- use 0x3D if screen resolution 128x64 pixel
- use 0x3C if screen resolution 128x32 pixel
- USEESP01
#define USEESP01 0
- use 1 for ESP01 using
- use 0 for nomal Dev Board like WemosD1 or simular
- WiFi and Duino User
const char *ssid = "YOUR_SSID"; // Change this to your WiFi SSID
const char *password = "YOUR_SSID_PASSWORD"; // Change this to your WiFi password
const String ducoUser = "YOUR_DUINO_USERNAME"; // Change this to your Duino-Coin username
Change SDA and SCL accordingly with your board, this example with Wemos D1 Mini, ESP01 and DevKit V1
| ESP8266(Wemos) | ESP01 | ESP32 | OLED | |
|---|---|---|---|---|
| 3.3V | 3.3V | 3.3V | VCC | |
| GND | GND | GND | GND | |
SCL |
D1 (GPIO5) | GPIO0 | GPIO22 | SCL |
SDA |
D2 (GPIO4) | GPIO2 | GPIO21 | SDA |
I added here support for ESP01. Also in resources folder are the wiring.
Feel free to modify, optimize and/or add yours.
Dont be confuse with OLED screen size, there are two common size :
- OLED 1.3" Display (128x64)
- OLED 0.96" Display (128x32)
**if you having difficulty on ESP8266 pin reset D4, replace it with -1, for ESP01 use 1 (in new code setup USEESP01 to 1)
If you get the error that you have no access to port /dev/ttyUSB? than change temporary you permission with:
sudo chown <username>:<group> /dev/ttyUSB2
change < username > and < group > to yours (mostly group: dialout or uucp)