User Manual: EoRa-S3-900TB Test Board

1. Johdanto

The EoRa-S3-900TB is a versatile development board designed by EBYTE, integrating the powerful ESP32-S3FH4R2 chip with a LoRa module. This board is engineered for a wide range of applications requiring Wi-Fi, Bluetooth LE, and LoRa wireless communication capabilities. It features a compact design with essential peripherals for rapid prototyping and testing.

The ESP32-S3 is a low-power MCU system-on-chip (SoC) that supports 2.4 GHz Wi-Fi and Bluetooth LE wireless communication. The chip integrates a high-performance 32-bit LX7 dual-core processor, an ultra-low-power co-processor, Wi-Fi baseband, Bluetooth baseband, RF module, and peripherals up to 240 MHz. The ESP32-S3FH4R2 package includes 384 KB of ROM, 512 KB of SRAM, 16 KB of RTC SRAM, 4 MB of FLASH, and 2 MB of PSRAM.

Kuva: Kulmikas view of the EoRa-S3-900TB Test Board, showcasing its compact form factor and various components.

2. Tärkeimmät ominaisuudet

• Prosessori: 32-bit LX7 dual-core processor, up to 240 MHz.
• Muisti: Integrated 4 MB FLASH and 2 MB PSRAM.
• Langaton yhteys: Supports 2.4 GHz Wi-Fi (IEEE 802.11b/g/n) and Bluetooth LE (Bluetooth 5, Bluetooth mesh).
• LoRa-moduuli: E22-900MM22S with SX1262 chip, supporting 850 ~ 930 MHz operating frequency and +22 dBm max output power.
• Näyttö: Integrated 0.96-inch OLED display.
• Varastointi: SD card slot for expanded storage.
• Virranhallinta: Li-ion battery charging circuit with a rated charging current of 500mA.
• Käyttöliittymä: Type-C interface with USB 2.0 protocol for power and data.
• Antenni: Common antenna for Wi-Fi and Bluetooth.

3. Tekniset tiedot

4. Pakkauksen sisältö

The EoRa-S3-900TB package typically includes the following components:

• EoRa-S3-900TB Development Board (with integrated Type-C interface, E22-900MM22S LoRa module, 0.96-inch OLED display, SD card slot, Li-ion battery charging circuit, and power circuit)

Image: The product packaging box, displaying manufacturer details and certifications.

5. Hardware Components and Pinout

The EoRa-S3-900TB board is designed with various accessible components and GPIO pins for development and testing. Below are diagrams illustrating the main components and the pin definitions.

Image: Detailed diagram of the EoRa-S3-900TB board highlighting key components and their functions, including the LoRa module, ESP32-S3 chip, and various interfaces.

5.1. Component Introduction

5.2. Nastan määritelmä

Image: Diagram illustrating the pin layout and dimensions of the EoRa-S3-900TB board, crucial for connecting external components.

6. Aloitus

6.1. Levylle kytkeminen virta

The EoRa-S3-900TB can be powered via its Type-C USB port. Connect the board to a computer or a 5V USB power adapter using a standard Type-C cable. The board also supports Li-ion battery power, with an integrated charging circuit. Ensure the battery is connected to the external battery interface (SH 1.25mm, 2pin) if using battery power.

6.2. Laiteohjelmiston lataus

To upload new firmware or programs to the ESP32-S3 chip:

1. Connect the board to your computer via the Type-C USB download port.
2. Paina ja pidä painettuna Käynnistysavain (labeled 15 in the component introduction diagram).
3. While holding the Boot key, briefly press the Reset-avain (labeled 7).
4. Release the Boot key. The board should now be in firmware download mode, ready to receive firmware via the serial port.

Image: The EoRa-S3-900TB board featuring its integrated 0.96-inch OLED display, which can be used for status indicators or data output.

7. Toimintatilat

7.1. Wi-Fi Operating Modes

The ESP32-S3 supports various Wi-Fi operating modes:

• Infrastructure BSS Station mode (STA mode): The module acts as a client and connects to an existing Wi-Fi access point or router. In this mode, the module does not provide connections to other devices.
• SoftAP mode (AP mode): The module functions as a wireless access point, allowing other Wi-Fi devices to connect to it. It can establish TCP/IP-based server, client, and UDP connections, supporting up to 6 stations and up to 7 TCP Socket transmissions.
• Station + SoftAP mode: The module operates simultaneously as both a client (STA) and an access point (AP).

Image: Visual representation of the Wi-Fi operating modes (AP and STA) supported by the EoRa-S3-900TB board, illustrating how it can function as an access point or connect to an existing network.

7.2. Bluetooth LE Data Rates

The Bluetooth LE functionality supports multiple data rates, providing flexibility for various applications:

• 125 Kbps
• 500 Kbps
• 1 Mbps
• 2 Mbps

Image: Diagram illustrating the adjustable multi-level data rates for Bluetooth Low Energy (BLE) supported by the board, ranging from 125 Kbps to 2 Mbps.

8. Sovellusskenaariot

The EoRa-S3-900TB board is suitable for a wide array of applications due to its versatile connectivity and processing capabilities:

• Smart home and industrial automation
• Healthcare devices
• Smart agriculture systems
• Service robotics
• General Purpose Low Power IoT Sensor Hubs
• General Purpose Low Power IoT Data Loggers
• Audio devices and camera video streaming
• USB devices and consumer electronics
• Speech recognition and image recognition systems
• Wi-Fi + Bluetooth network cards
• Touch and proximity sensing applications

Kuva: esimamples of diverse application scenarios for the EoRa-S3-900TB, including smart home, medical equipment, audio equipment, smart agriculture, service robots, and electronic products.

9. Vianmääritys

If you encounter issues with your EoRa-S3-900TB board, consider the following common troubleshooting steps:

• Ei virtaa: Ensure the Type-C cable is securely connected and the power source (USB port or adapter) is functional. If using a battery, check its charge level and connection.
• Laiteohjelmiston lataus epäonnistui: Verify that the board is in download mode (Boot key pressed during reset). Check your serial port settings and driver installation on your computer.
• Wi-Fi/Bluetooth-yhteysongelmat: Ensure antennas are properly connected. Check your code for correct Wi-Fi credentials or Bluetooth pairing procedures. Verify that the module is operating in the correct mode (AP, STA).
• OLED-näyttö ei toimi: Check connections to the OLED display. Ensure your code is correctly initializing and sending data to the display.
• SD-korttia ei havaittu: Ensure the SD card is inserted correctly into the TF card slot. Check your code for proper SD card initialization and file järjestelmän toiminnot.

10. Huolto

To ensure the longevity and optimal performance of your EoRa-S3-900TB board:

• Pidä puhtaana: Regularly clean the board with a soft, dry brush or compressed air to remove dust and debris. Avoid using liquids or harsh chemicals.
• Käsittele varovasti: Avoid dropping the board or subjecting it to physical shocks. Handle by the edges to prevent damage to components.
• Oikea säilytys: Säilytä korttia kuivassa, viileässä paikassa, poissa suorasta auringonvalosta ja äärimmäisistä lämpötiloista. Käytä antistaattisia pusseja, jos säilytät sitä pitkiä aikoja.
• Katkaise virta, kun sitä ei käytetä: Disconnect power when the board is not in use, especially if using battery power, to prevent unnecessary discharge.

11. Tuki ja takuu

For technical support, documentation, or further inquiries regarding the EoRa-S3-900TB test board, please contact the manufacturer:

Valmistaja: Chengdu Ebyte Electronic Technology Co., Ltd.

Websivusto: http://www.cdebyte.com/

EU-asiakkaille valtuutettu edustaja on:

EU:n TASAVALTA: evalmaster Consulting GmbH
Bethaniestr. 30
60325 Frankfurt am Main
Saksa

Please refer to the product packaging or purchase documentation for specific warranty terms and conditions.