SKU: IOWC-1244
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LilyGO T-Vending ESP32-S3 IoT Dev Board w/ WiFi, Bluetooth, RS485 & PCIe

₹3,149.00 (Inclusive of all taxes)
Out of Stock

The LilyGO T-Vending ESP32-S3 IoT Development Board integrates a dual-core ESP32-S3-WROOM-1 MCU with WiFi/Bluetooth, a 3000V isolated RS485 port, and a PCIe expansion interface for T-PCIE SIM modules, enabling robust industrial IoT and telemetry applications via Arduino IDE or VS Code.

Features

  • ESP32-S3-WROOM-1 Dual-Core MCU: Provides high-performance processing for complex IoT logic and wireless protocol stacks.
  • Integrated WiFi & Bluetooth Connectivity: Enables local wireless networking, BLE sensor data collection, and remote device management.
  • 3000V Isolated RS485 Interface (RSM485MT5V): Ensures robust, noise-immune serial communication for industrial environments and Modbus RTU networks.
  • PCIe Expansion Interface: Supports T-PCIE SIM card modules for adding 4G LTE/CAT-M/NB-IoT cellular connectivity to your project.
  • Versatile Development Platform: Fully programmable via Arduino IDE or VS Code (PlatformIO/ESP-IDF) for rapid prototyping and deployment.

Out of stock

Description

The LilyGO T-Vending is an industrial-grade IoT development board built around the Espressif ESP32-S3-WROOM-1 module. It combines a powerful dual-core Xtensa LX7 processor with integrated 2.4GHz WiFi and Bluetooth 5.0, providing a complete wireless system-on-chip solution. The board’s standout feature is its integrated, galvanically isolated RS485 transceiver (RSM485MT5V), which offers 3000V of isolation to protect the sensitive MCU from high-voltage transients and ground loop noise common in industrial settings.

Designed for expansion, the board includes a PCIe interface socket compatible with LilyGO’s T-PCIE series modules, allowing developers to seamlessly add cellular (4G/LTE), GNSS, or other PCIe-based connectivity. This makes the T-Vending ideal for building gateways that bridge local RS485 sensor networks to cloud platforms via WiFi, Bluetooth, or cellular backhaul. The board supports a wide RS485 baud rate from 1200 to 128000bps and includes an isolated 5V/50mA power output for external sensors.

Key Features

  • Industrial RS485 with High Isolation: Features a 3000V optically isolated RS485 transceiver (RSM485MT5V) for reliable communication in electrically noisy environments.
  • Dual Wireless Cores: Leverages the ESP32-S3's integrated 2.4GHz WiFi 4 and Bluetooth 5.0 with long-range support for flexible connectivity.
  • PCIe Expansion Slot: Dedicated T-PCIE interface for plug-and-play integration of cellular (e.g., SIM7600, SIM7000) or other PCIe-based module extensions.
  • Robust Power Design: Includes an isolated DC-DC converter providing a clean 5V/50mA output to power external sensors or peripherals.
  • Developer-Friendly Ecosystem: Fully compatible with Arduino Core for ESP32, ESP-IDF, and PlatformIO in VS Code for streamlined firmware development.
  • Compact & Mountable Form Factor: Designed with mounting holes for secure installation in enclosures for field deployments.

Applications

  • Industrial IoT (IIoT) Gateways: Collect data from Modbus RTU/RS485 sensors (temperature, pressure, flow meters) and transmit to the cloud via WiFi or cellular.
  • Smart Vending & Retail Telemetry: Monitor machine status, inventory levels, and sales data with secure wireless connectivity.
  • Building Automation & Energy Management: Interface with RS485-based HVAC controllers, smart meters, and lighting systems for centralized control.
  • Remote Environmental Monitoring Stations: Deploy in field locations to gather sensor data and backhaul via 4G LTE using a T-PCIE module.
  • Fleet & Asset Tracking: Develop trackers combining GNSS (via PCIe), Bluetooth beacon scanning, and cellular reporting.

Technical Specifications

Microcontroller / SoCESP32-S3-WROOM-1 (Dual-core Xtensa LX7, 240 MHz)
Wireless ProtocolsWiFi 802.11 b/g/n (2.4GHz), Bluetooth 5.0 (BLE)
Serial InterfaceTTL/RS485 (via RSM485MT5V isolated transceiver)
Isolation Voltage3000V
RS485 Baud Rate1200 - 128000 bps
Isolated Power Output5V DC, 50mA (0.25W)
Expansion InterfacePCIe (for T-PCIE SIM modules)
Programming PlatformArduino IDE, ESP-IDF, VS Code (PlatformIO)
Dimensions (Shipping)13 x 7 x 3 cm

Frequently Asked Questions

How do I program the LilyGO T-Vending board?

You can program it using the Arduino IDE with the ESP32 board package installed, or via VS Code with the PlatformIO extension. Select 'ESP32-S3 Dev Module' as your target. For low-level control, use Espressif's official ESP-IDF framework. The board connects via a standard USB-C cable for both power and serial communication/flashing.

What is the purpose of the 3000V isolation on the RS485 port?

The 3000V optical isolation on the RS485 transceiver (RSM485MT5V) protects the sensitive ESP32-S3 microcontroller from voltage spikes, ground potential differences, and electromagnetic interference common in industrial environments. This ensures reliable data communication and prevents damage when connecting to long-distance RS485 networks or equipment with different power grounds.

Can I add cellular connectivity to this board?

Yes, via the onboard PCIe interface designed for LilyGO's T-PCIE series modules. You can plug in modules like the T-PCIE SIM7600G (4G LTE) or SIM7000G (NB-IoT/CAT-M) to add cellular network access. The board provides the necessary power and UART communication lines to the module, allowing it to function as a complete cellular IoT gateway.

What is the maximum baud rate for the RS485 interface?

The integrated RSM485MT5V transceiver supports a configurable baud rate range from 1200 bps up to 128,000 bps. This covers standard industrial communication speeds for protocols like Modbus RTU. You configure the baud rate, parity, and stop bits within your application firmware using the ESP32-S3's UART peripheral.

Does the isolated 5V output power external sensors?

Yes, the board provides an isolated 5V DC output capable of delivering up to 50mA (0.25W). This can be used to power small external sensors or interface circuits, ensuring their power supply is also isolated from the board's main logic. This is useful for powering a 4-20mA loop isolator or a small sensor node on the RS485 network.

Package Includes

  • 1 x LilyGO T-Vending ESP32-S3 Development Board
  • 1 x PH2.0 to 2.54mm DuPont Cable (10-pin)
  • 1 x 2.5mm Male Pin Header (2x6P)
  • 2 x Screws (2.5mm x 5mm)

Additional Information

Weight 0.02 kg
Dimensions 7 × 13 × 3 cm