Arduino Settings

I am using actually (09/2021) the Arduino v1.8.16 with the ESP32 Package v2.0.1.
See Installation instructions using Arduino IDE Boards Manager for how to add ESP32 Support to your Arduino IDE.

Libraries for the new Greyscale Version (10/2021)

1. You need to add the Adafruit GFX Library from Adafruit to your Arduino System.
   Use the Arduino IDE Library Manager (Sketch > Include Library > Manage Libraries) and search for GFX.
2. You need to add the U8G2 for Adafruit GFX Library to your Arduino System.
   Use the Arduino IDE Library Manager (Sketch > Include Library > Manage Libraries) and search for U8G2 for Adafruit GFX.
3. You need to add the bounce2 Library to your Arduino System.
   Use the Arduino IDE Library Manager (Sketch > Include Library > Manage Libraries) and search for bounce2.
4. You need to add manually the low level Library for the SSD1322 Controller.
   Use the Link https://github.com/venice1200/SSD1322_for_Adafruit_GFX/releases and Download the latest "Release".
   Unpack the ZIP content to your Arduino Library folder.
5. If you use the TTGO-T8 or d.ti Board you need to add manually the Library for the MIC184 Temperature Sensor.
   Use the Link https://github.com/venice1200/MIC184_Temperature_Sensor/releases and Download the latest "Release".
   Unpack the ZIP content to your Arduino Library folder.
6. If you use the TTGO-T8 or d.ti Board you need to add the FastLED Library to your Arduino System.
   Use the Arduino IDE Library Manager (Sketch > Include Library > Manage Libraries) and search for FastLed.

Libraries for the old Monochrome Version

You need to add the U8g2 Library from Oli Kraus to your Arduino System.
Use the Arduino IDE Library Manager (Sketch > Include Library > Manage Libraries) and search for U8g2.
Important: As we use an Display with a Pixel width of 256 we need to uncomment // Enable U8G2_16BIT in u8g2.h.
See 16-Bit-Mode for more details.
➡️ It looks like the 16-Bit-Mode is automatically enabled if you use an ESP Device. No need to enable it manually.

Choose your Board

Starting with the USB-Version of 2021-05-27 you only need to choose the correct Board in the Arduino IDE.
The Arduino IDE and the Sketch should detect the chosen Board and enable the needed settings automatically.
Functionality tested with Arduino IDE 1.8.13/1.8.15, ESP32 Package 1.0.5/1.0.6, ESP8266 Package 3.0.0/3.0.1.
!! Important !!
Uncomment only Your Board

Arduino IDE Settings for the TTGO-T8 v1.7.1

Choose "ESP32 Dev Module" as Board within the Arduino IDE
Uncomment #define USE_TTGOT8

Arduino IDE Settings for the (Wemos) Lolin32 and the DevKit_V4

Choose "WEMOS LOLIN32" as Board within the Arduino IDE
Uncomment #define USE_LOLIN32W

Arduino IDE Settings for the ESP8266-NodeMCU v3

Choose "NodeMCU 1.0 (ESP-12E Module)" as Board within the Arduino IDE
Uncomment #define USE_NODEMCU

SD Card information

Format your SD Card with FAT16 (FAT) or FAT32.
SD Cards can be used in SPI or SD-Bus Mode with the ESP32 with Arduino & ESP's.
The TTGO-T8 supports SPI and the 1-Bit SD-Bus Mode.
One weird thing is that you need to run the SD_MMC.begin("/sdcard", true) command twice to get it working.
The first command reports an error back, the second one is working fine.
This issue is reported on some websites and be hopefully fixed in newer Releases of the ESP32 Package.
The 4-Bit SD-Bus Mode, which is not supported by the TTGO-T8's SD Slot, doesn't show this weird issue.