1. Johdanto
The M5Stack Core2 is a versatile IoT development kit designed for rapid prototyping and deployment of various applications. It features an ESP32-D0WDQ6-V3 microcontroller, a 2-inch TFT LCD touch screen, and integrated Wi-Fi and Bluetooth connectivity. This manual provides essential information for setting up, operating, and maintaining your Core2 device.

Figure 1.1: M5Stack Core2 IoT Development Kit, showcasinsen kompaktin muotoilun ja näytön ansiosta.
2. Mitä laatikossa on
Varmista, että pakkauksessasi on kaikki alla luetellut tuotteet:
- 1 x M5Stack Core2 Unit
- 1 x USB Type-C Cable (20cm)
- 1 x kuusiokoloavain

Figure 2.1: Contents of the M5Stack Core2 package, including the Core2 unit, USB-C cable, and hex wrench.

Figure 2.2: Visual representation of the shipping list for the M5Stack Core2.
3. Tuote ohiview
The M5Stack Core2 is built around the ESP32-D0WDQ6-V3 chip, offering robust performance for various applications. Key features include:
- Tehokas suorituskyky: Equipped with an ESP32-D0WDQ6-V3 microcontroller for high computing performance.
- Kosketusnäyttö: Features a 2-inch TFT LCD touch screen (320x240 resolution) for intuitive user interaction.
- Langaton yhteys: Integrated Wi-Fi and Bluetooth capabilities for seamless communication.
- Laajennettavat toiminnot: Multiple expansion ports (GPIO, I2C, SPI, UART) for connecting additional modules and sensors.
- Sisäänrakennettu kaiutin: Äänilähtöön.
- Tärinämoottori: Provides haptic feedback.
- Mikrofoni: Äänituloa varten.
- SD-korttipaikka: Laajennettavaa tallennustilaa varten.

Figure 3.1: Annotated diagram of the M5Stack Core2, highlighting its main components and interfaces.

Figure 3.2: Key features of the M5Stack Core2, including memory and display type.
4. Tekniset tiedot
The following table details the technical specifications of the M5Stack Core2:
| Erittely | Parametri |
|---|---|
| SoC | ESP32-D0WDQ6-V3, 240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi |
| Salama | 16 Mt |
| PSRAM | 8 Mt |
| Tulo Voltage | 5V @ 500mA |
| Host Interface | 1 kpl C-tyypin liitäntää, 1 kpl GROVE (I2C+I/O+UART) |
| LED | Vihreä virran merkkivalo |
| Painikkeet | Power button, RST button, screen virtual buttons x 3 |
| Tärinähälytys | Tärinä moottori |
| Tuotteen paino | 2.82 unssia (noin 80 grammaa) |
| Pakkauksen mitat | 3.19 x 2.28 x 0.87 tuumaa |
| Paristot | 1 litiumioniakku (mukana) |

Figure 4.1: M5Stack Core2 weight measurement.

Figure 4.2: M5Stack Core2 dimensions.
5. Asennus
To begin using your M5Stack Core2, follow these initial setup steps:
- Lataus: Connect the M5Stack Core2 to a 5V USB power source using the provided USB Type-C cable. The device will begin charging.
- Virta päälle: Press and hold the power button (usually located on the side) for approximately 6 seconds to turn on the device.
- Ohjelmistoympäristö: The Core2 supports various development environments, including UIFlow, Arduino, and MicroPython. Choose your preferred environment and set up the necessary drivers and IDE on your computer.
- Ensimmäinen ohjelma: Refer to the official M5Stack documentation for guides on uploading your first program or firmware to the Core2.
6. Käyttöohjeet
The M5Stack Core2 is designed for flexible operation depending on your application. Here are general guidelines:
- Touch Screen Interaction: Navigate menus and interact with applications using the 2-inch capacitive touch screen.
- Virtuaalipainikkeet: The three virtual buttons below the screen can be programmed for various functions within your applications.
- Fyysiset painikkeet: The physical RST (Reset) button can be used to restart the device. The power button can be used for power cycling.
- Ulkoiset moduulit: Connect compatible M5Stack modules and sensors to the GROVE port to expand functionality. Ensure proper connection and power supply for external modules.
- SD-kortin käyttö: Insert a microSD card into the designated slot for additional storage. Ensure the card is formatted correctly (e.g., FAT32).
7. Huolto
Proper maintenance ensures the longevity and optimal performance of your M5Stack Core2:
- Puhdistus: Puhdista laite pehmeällä, kuivalla liinalla. Vältä nestemäisten puhdistusaineiden tai hankaavien materiaalien käyttöä.
- Varastointi: Säilytä laitetta viileässä, kuivassa paikassa, poissa suorasta auringonvalosta ja äärimmäisistä lämpötiloista.
- Akun hoito: Avoid fully discharging the battery frequently. If storing for extended periods, charge the battery to about 50-70% to preserve its lifespan.
- Laiteohjelmistopäivitykset: Tarkista säännöllisesti virallinen M5Stack websivustolta laiteohjelmistopäivityksiä, jotta laitteessasi on uusimmat ominaisuudet ja virheenkorjaukset.
- Fyysinen suojaus: Vaikka laite on kestävä, vältä sen pudottamista tai altistamista liialliselle voimalle tai kosteudelle.
8. Vianmääritys
This section addresses common issues you might encounter with your M5Stack Core2.
- Q1: What is the maximum supported capacity of the SD card, and why is there no response when the SD card is inserted?
- Theoretically, devices based on ESP32 support up to 16GB. We recommend using a SD card model SDSQUNC-016G-ZN6MA. Ensure the SD card is properly inserted and formatted.
- Q2: Using the battery in either of the battery ports on the USB unit or the Core2 forces the unit to stay powered on continuously. Any attempt to shut down using the side button causes the device to restart after.
- We have found that the reason is that the filter capacitor capacity of the USB 1.2 module is too large. If you still need to use batteries to power the Core2 + USB 1.2 solution, to avoid frequent restarts, the following two solutions can be adopted:
- Remove the filter capacitor.
- Replace it with a smaller capacity filter capacitor (10uF is recommended).
- Q3: How to extend the Core2 with an extension module?
- You must remove the original bottom and battery of the Core2, then you can stack another module extension.

Figure 8.1: Common questions and solutions for the M5Stack Core2.
9. Soveltamisala
The M5Stack Core2 is suitable for a wide range of applications, including but not limited to:
- Älykodin laitteet: Control and monitor home automation systems.
- STEM-koulutus: An excellent tool for learning about IoT, programming, and electronics.
- IoT-ohjain: Serve as a central controller for various Internet of Things projects.
- Tee itse -projektit: Ihanteellinen räätälöityihin elektroniikkaprojekteihin ja nopeaan prototyyppien valmistukseen.

Kuva 9.1: Esimamples of M5Stack Core2 applications.

Figure 9.2: Further illustration of the M5Stack Core2's versatile applications.
10. Tuki ja resurssit
For more detailed tutorials, documentation, and community support, please visit the official M5Stack websivusto:

Figure 10.1: Guide to accessing online tutorials and documentation.

Figure 10.2: Official M5Stack webtukisivusto.