# LILYGO T-Vending

> ESP32-S3-WROOM-1 development board with MAX13487E RS-485 transceiver, T-PCIE SIM expansion slot, Grove connector, WiFi, and BLE — designed for vending machine control and industrial RS-485 communication applications.

## Quick Facts

- **Brand:** LILYGO
- **Board Type:** ESP32-S3
- **Price:** ~$18.96
- **Product Readiness:** developer
- **CPU:** ESP32-S3-WROOM-1
- **CPU Architecture:** Xtensa LX7
- **CPU Cores:** 2
- **RAM:** 512KB SRAM
- **PSRAM:** 8MB
- **Flash:** 16MB
- **USB:** USB-C
- **Power:** 5V
- **Operating Voltage:** 3.3V
- **Antenna:** Built-in PCB antenna

## Connectivity

- **Wifi:** 802.11 b/g/n
- **Bluetooth:** BLE 5.0

## Open Source

- **Firmware:** Yes
- **Schematics:** No
- **PCB Layout:** No

## Compatible Firmware

arduino, esp-idf

## Use Cases

- vending-machine-control
- industrial-rs485-communication
- modbus-iot-gateway
- retail-iot

## Components

- **ESP32-S3-WROOM-1** (mcu): Dual-core 240MHz Xtensa LX7 module with WiFi 802.11 b/g/n and BLE 5.0 — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.espressif.com%2Fsites%2Fdefault%2Ffiles%2Fdocumentation%2Fesp32-s3-wroom-1_wroom-1u_datasheet_en.pdf&ref=openhardware.directory&product=lilygo-t-vending&source=md-export)
- **MAX13487E** (transceiver): Half-duplex RS-485 transceiver at up to 500 kbps with ±15kV ESD protection for industrial environments — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.analog.com%2Fen%2Fproducts%2Fmax13487e.html&ref=openhardware.directory&product=lilygo-t-vending&source=md-export)
- **Grove Connector** (expansion): Standard Grove 4-pin connector for easy sensor and module integration — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.espressif.com%2Fsites%2Fdefault%2Ffiles%2Fdocumentation%2Fesp32-s3_datasheet_en.pdf&ref=openhardware.directory&product=lilygo-t-vending&source=md-export)
- **T-PCIE Slot** (expansion): Mini PCI Express slot for LILYGO T-PCIE SIM cellular modules (sold separately) — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.espressif.com%2Fsites%2Fdefault%2Ffiles%2Fdocumentation%2Fesp32-s3_datasheet_en.pdf&ref=openhardware.directory&product=lilygo-t-vending&source=md-export)

## Protocols

- **UART**
- **SPI**
- **I2C**
- **RS-485**

## Available Software

- **[Arduino IDE]()** (open-source)
- **[VS Code]()** (open-source)
- **[ESP-IDF]()** (open-source)

## Description

## Overview

The LILYGO T-Vending is an ESP32-S3-based development board purpose-built for vending machine control and industrial RS-485 communication. At its core is an ESP32-S3-WROOM-1 running dual-core Xtensa LX7 at 240MHz. The onboard MAX13487E provides half-duplex RS-485 communication at up to 500 kbps with ±15kV (1500V) ESD protection, enabling reliable deployment in noisy industrial environments. A T-PCIE SIM expansion slot enables cellular connectivity modules (sold separately), and a Grove connector facilitates quick sensor integration. Reset and boot buttons support development workflows. The board targets vending machine operators, industrial automation developers, and IoT integrators needing ruggedized serial communication with wireless control capability.

## Where to Buy

- [LILYGO Official](https://openhardware.directory/r?to=https%3A%2F%2Flilygo.cc%2Fproducts%2Ft-vending&ref=openhardware.directory&product=lilygo-t-vending&source=md-export) — $18.96

## Resources

- [product](https://openhardware.directory/r?to=https%3A%2F%2Flilygo.cc%2Fproducts%2Ft-vending&ref=openhardware.directory&product=lilygo-t-vending&source=md-export)
- [github](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2FXinyuan-LilyGO%2FT-Vending&ref=openhardware.directory&product=lilygo-t-vending&source=md-export)

## Tags

`esp32-s3`, `rs485`, `vending-machine`, `industrial-iot`, `modbus`, `grove`

## Images

![LILYGO T-Vending](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-vending/731b5a76caab.jpg)
![LILYGO T-Vending](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-vending/b6391a35b6fb.jpg)
![LILYGO T-Vending](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-vending/87e9db57e446.jpg)
![LILYGO T-Vending](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-vending/66fd8f98f78e.jpg)
![LILYGO T-Vending](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-vending/69d64733229f.jpg)
![LILYGO T-Vending](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-vending/aa15f39401df.png)

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