--- title: "LILYGO T-Relay S3" url: "https://maker.wiznet.io/Benjamin/resellers/lilygo-t-relay/" markdown_url: "https://maker.wiznet.io/Benjamin/resellers/lilygo-t-relay/md" type: "VAR: Value-Added Reseller Products" author: "LILYGO®" author_url: "https://lilygo.cc/products/t-relay-s3?variant=44912889987253" editor: "WIZnet" editor_url: "https://maker.wiznet.io/" original_author: "LILYGO®" original_url: "https://lilygo.cc/products/t-relay-s3?variant=44912889987253" published: "2025-11-24" language: "en" likes: 0 views: 357 comments: 0 source: "WIZnet Makers (https://maker.wiznet.io/)" --- # LILYGO T-Relay S3 > ESP32 Wireless Module DC 5V 4 Groups Relay Development BoardÍ Original author: LILYGO® (source: https://lilygo.cc/products/t-relay-s3?variant=44912889987253) ## Article ## **Specifications** 2 X 10PIN Expansion Seat, LCD connection PIN | MCU | ESP32-S3-WROOM-1U Xtensa® dual-core 32-bit LX7 | | --- | --- | | FLASH | 16MB | | PSRAM | 8MB | | Wireless | Wi-Fi: 802.11 b/g/n; Bluetooth LE: Bluetooth 5 | | Onboard Functions | Relays X 6, Reset + Boot Button | ![](https://cdn.shopify.com/s/files/1/0617/7190/7253/files/LILYGO-H629_600x600.png?v=1686558103) ## **Sample Code For Reference [Github]** If you need technical support please check below link to find more details. ### [**T-Relay S3**](https://github.com/Xinyuan-LilyGO/LilyGo-T-Relay/blob/main/docs/RELAY_ESP32S3.MD) ![](https://cdn.shopify.com/s/files/1/0617/7190/7253/files/H629-T-RELAY-S3-LILYGO_6_600x600.jpg?v=1683699371) **T-Relay Chain** ![](https://cdn.shopify.com/s/files/1/0617/7190/7253/files/H630--T-RELAY-S3-LILYGO_2_600x600.jpg?v=1683699427) ### **Pin DaigramT-Relay S3** ![](https://cdn.shopify.com/s/files/1/0617/7190/7253/files/T-Relay-S3_68630ace-ddc6-440e-840b-416ac79b10fe.jpg?v=1731483650) **T-Relay Chain** ![](https://cdn.shopify.com/s/files/1/0617/7190/7253/files/T-Relay-Chain-6_600x600.jpg?v=1683699571) **More Details** ![](https://cdn.shopify.com/s/files/1/0617/7190/7253/files/H630--T-RELAY-S3-LILYGO_5_39ac7c79-f3e7-421e-8cca-4a38f4e07d7d_600x600.jpg?v=1683699663) ![](https://cdn.shopify.com/s/files/1/0617/7190/7253/files/1_1_600x600.jpg?v=1683699678) ![](https://cdn.shopify.com/s/files/1/0617/7190/7253/files/H629-T-RELAY-S3-LILYGO_4_ba4b485a-6ca0-4aa4-9b38-52ccd6983df4_600x600.jpg?v=1683699705) ## **![](https://cdn.shopify.com/s/files/1/0617/7190/7253/files/T-Relay-S3-W5500-LILYGO_3.jpg?v=1734339724)What's In The BoxT-Relay S3** ![](https://cdn.shopify.com/s/files/1/0617/7190/7253/files/H629-T-RELAY-S3-LILYGO_8_600x600.jpg?v=1683699766) **T-Relay Chain** ![](https://cdn.shopify.com/s/files/1/0617/7190/7253/files/H630--T-RELAY-S3-LILYGO_6_600x600.jpg?v=1683699821) **T-Relay S3 W5500** ![](https://cdn.shopify.com/s/files/1/0617/7190/7253/files/LILYGO-T-Relay_S3_W5500.jpg?v=1734341916) --- Source: https://maker.wiznet.io/Benjamin/resellers/lilygo-t-relay/