---
product_id: 438190275
title: "LILYGO TTGO T-Relay ESP32 Wireless Module DC 5V 4 Groups Relay Development Board 4MB Flash WiFi BLE Remote Switch Control"
brand: "lilygo"
price: "27 DH"
currency: MAD
in_stock: false
url: https://www.desertcart.ma/products/438190275-lilygo-ttgo-t-relay-esp32-wireless-module-dc-5v-4
store_origin: MA
region: Morocco
---

# 4MB Flash + 8MB PS RAM WiFi 802.11 b/g/n + BLE 4.2 4 Relay Channels with Optocoupler LILYGO TTGO T-Relay ESP32 Wireless Module DC 5V 4 Groups Relay Development Board 4MB Flash WiFi BLE Remote Switch Control

**Brand:** lilygo
**Price:** 27 DH
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Empower Your IoT Game with Smart, Secure Relay Control!

## Quick Answers

- **What is this?** LILYGO TTGO T-Relay ESP32 Wireless Module DC 5V 4 Groups Relay Development Board 4MB Flash WiFi BLE Remote Switch Control by lilygo
- **How much does it cost?** 27 DH with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/438190275-lilygo-ttgo-t-relay-esp32-wireless-module-dc-5v-4)

## Best For

- lilygo enthusiasts

## Why This Product

- Trusted lilygo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Expandable I/O:** 16 GPIO pins give you the freedom to customize and scale your smart automation projects.
- • **Open-Source Ready:** Backed by a vibrant GitHub community for easy access to code, support, and endless innovation.
- • **Power-Packed Memory:** 4MB Flash and 8MB PS RAM ensure smooth multitasking and firmware upgrades without a hitch.
- • **Robust Relay Control:** 4 independent relay channels with optocoupler isolation for safe, reliable switching of multiple devices.
- • **Seamless Connectivity:** Dual-mode WiFi and Bluetooth BLE 4.2 keep your projects effortlessly connected and future-proof.

## Overview

The LILYGO TTGO T-Relay ESP32 module is a versatile 5V development board featuring an ESP32-Wrover-B MCU with 4MB Flash and 8MB PS RAM. It supports WiFi 802.11 b/g/n and Bluetooth BLE 4.2 for seamless wireless communication. Equipped with 4 relay channels with optocoupler isolation and 16 GPIO pins, it enables robust, safe remote switching and extensive expandability for IoT and automation projects.

## Description

LILYGO TTGO T-Relay ESP32 Wireless Module DC 5V 4 Groups Relay Development Board 4MB Flash WiFi BLE Remote Switch Control

## Features

- -4MB FLASH ,8MB PS RAM
- -MCU: ESP32-Wrover-B
- -WIFI :802.11 b/g/n，Blutooth：BLE V4.2
- -Onboard Functions :4 Groups of relays ,Optocoupler Isolation, 16 Expansion GPIO
- -More information: github.com/Xinyuan-LilyGO/LilyGo-T-Relay

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09XWWYK4V |
| Best Sellers Rank | #4,349 in Single Board Computers (Computers & Accessories) |
| Brand | LILYGO |
| CPU Manufacturer | LILYGO |
| Compatible Devices | Computer, T-U2T Upload Tool |
| Connectivity Technology | GPIO, Wi-Fi |
| Customer Reviews | 4.0 out of 5 stars 52 Reviews |
| Global Trade Identification Number | 06971336330458 |
| Item Dimensions L x W x H | 3.58"L x 3.35"W x 0.69"H |
| Manufacturer | LILYGO |
| Memory Storage Capacity | 4 MB |
| Model Name | TTGO T-Relay |
| Processor Brand | LILYGO |
| Processor Count | 1 |
| RAM Memory Installed | 8 MB |
| RAM Memory Technology | LPDDR2, LPDDR3 |
| Ram Memory Installed Size | 8 MB |
| Warranty Description | 1 year |
| Wireless Compability | 802.11b |

## Product Details

- **Brand:** LILYGO
- **Model name:** TTGO T-Relay
- **Installed RAM memory size:** 8 MB
- **Memory storage capacity:** 4 MB
- **Connectivity technology:** Wi-Fi, GPIO

## Images

![LILYGO TTGO T-Relay ESP32 Wireless Module DC 5V 4 Groups Relay Development Board 4MB Flash WiFi BLE Remote Switch Control - Image 1](https://m.media-amazon.com/images/I/616K6Ta3WmL.jpg)
![LILYGO TTGO T-Relay ESP32 Wireless Module DC 5V 4 Groups Relay Development Board 4MB Flash WiFi BLE Remote Switch Control - Image 2](https://m.media-amazon.com/images/I/514CT8gaWgL.jpg)
![LILYGO TTGO T-Relay ESP32 Wireless Module DC 5V 4 Groups Relay Development Board 4MB Flash WiFi BLE Remote Switch Control - Image 3](https://m.media-amazon.com/images/I/41i3nBgbl5L.jpg)
![LILYGO TTGO T-Relay ESP32 Wireless Module DC 5V 4 Groups Relay Development Board 4MB Flash WiFi BLE Remote Switch Control - Image 4](https://m.media-amazon.com/images/I/411EwiDXZvL.jpg)
![LILYGO TTGO T-Relay ESP32 Wireless Module DC 5V 4 Groups Relay Development Board 4MB Flash WiFi BLE Remote Switch Control - Image 5](https://m.media-amazon.com/images/I/61BdBPN62CL.jpg)

## Available Options

This product comes in different **Size** options.

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**Shop now:** [https://www.desertcart.ma/products/438190275-lilygo-ttgo-t-relay-esp32-wireless-module-dc-5v-4](https://www.desertcart.ma/products/438190275-lilygo-ttgo-t-relay-esp32-wireless-module-dc-5v-4)

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*Product available on Desertcart Morocco*
*Store origin: MA*
*Last updated: 2026-02-25*