https://github.com/magcode/esp-oled-display

An ESP8266 / SSD1322 based IOT OLED Display
https://github.com/magcode/esp-oled-display

esp8266 iot mqtt nodemcu ssd1322

Last synced: about 2 months ago
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An ESP8266 / SSD1322 based IOT OLED Display

• Host: GitHub
• URL: https://github.com/magcode/esp-oled-display
• Owner: magcode
• License: gpl-3.0
• Created: 2020-08-02T14:32:17.000Z (almost 5 years ago)
• Default Branch: master
• Last Pushed: 2020-08-04T20:55:44.000Z (almost 5 years ago)
• Last Synced: 2025-01-28T14:45:30.736Z (4 months ago)
• Topics: esp8266, iot, mqtt, nodemcu, ssd1322
• Language: C++
• Homepage:
• Size: 809 KB
• Stars: 3
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# esp-oled-display

An ESP8266 / SSD1322 based IOT OLED Display controlled by MQTT.

It shows inside and outside temperature, current time and whatever status text you like.

![display](/pics/display.jpg)

# Hardware & Wiring

Hardware needed:

* NodeMCU

* OLED Display 3.12" 256*64 SSD1322

## Display soldering

The display must be soldered for "4SPI"

![solder](/pics/solder.jpg)

## Wiring

```

NodeMCU           - Display

----------------------------------------

D1 GPIO5          - PIN 15 / RESET

D2 GPIO4          - PIN 14 / DC

D7 HMOSI (GPIO13) - PIN 5  / SDIN (D1)

D8 HCS   (GPIO15) - PIN 16 / CS	

D5 HSCLK (GPIO14) - PIN 4  / SCLK (D0)

3.3V              - PIN 2

GND               - PIN 1

```

# Building

I use VSC/Platform IO

Make sure `#define U8G2_16BIT` is uncommented in `/lib/U8g2/src/clib/u8g2.h`

Add your WiFi SSID, password, MQTT server and topic in `src/Secrets.h`

# Controlling via MQTT

Send a JSON structure to the topic defined in `Secrets.h`

```

{

  inside:23, 

  outside:18, 

  time:"23:33", 

  data:"Whatever", 

  contrast:255

}

```

You can disable the display by sending

```

{

  disable:true

}

```