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T-Relay
T-Relay
ESP32 Wireless Module DC 5V 4 Groups Relay Development Board
4.86 / 5.0
(7) 7 total reviews
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About Shipping
About Shipping
Methods & Delivery Time
- Standard Express: 25-30 Days
- YunTu Express : 10-20 Days
(Company name can't be used consignee) - DHL: 10-17 Days
- FedEx: 10-17 Days
Please note that all delivery times are estimated for reference only.
Check More Info: Shipping Policy
About Tax
About Tax
For countries other than USA, we only charge [product cost + shipping cost], no tax.
Orders from US customers are adjusted according to different shipping channels:
1. For Standard Express Order: We charge【product cost + shipping cost + part of tax】this rate is only applicable to shipment from China warehouse.
(Since the tax is charged according to the declared amount, we have filtered the most suitable solution, and it is most likely that this shipping way does not need you to deal with the customs duty, but it is not absolute)
2. For DHL Order: We charge【product cost + shipping cost】no any tax, tax need you to pay attention to the local policy changes, when the parcel arrives at the US customs, deal with the tax matters by yourself.
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The above content is only for charging reference on lilygo.cc website, the specific tax situation still depends on the local country's policy requirements, once the parcel is sent out, you need to keep an eye on its status, and to assist in handling it as needed when it arrives at the local customs, we will also follow up during the process, if you have any
LILYGO® TTGO T-Relay ESP32 Wireless Module DC 5V 4 Groups Relay Development Board 4MB Flash WiFi Bluetooth Remote Switch Control
Specifications
MCU | ESP32 |
FLASH | 4MB |
PS RAM | 8MB |
Bus Interfaces | UART, SPI, I2C, CAN, 12S, SDIO |
Wireless | Wi-Fi 802.11 b/g/n |
Bluetooth | BLE V4.2 |
Onboard Functions | 4 Groups of relays |
Optocoupler Isolation | 16 Expansion GPIO |
HRS4H-S-DC5V Relay: 4 Blue LEDs Relay Work Indicator
①K1 Relay: GPIO21
②K2 Relay: GPIO19
③K3 Relay: GPIO18
④K4 Relay: GPIO05
Support T-U2T Upload Tool:
Computer->USB Type-C data cable->
Needs to be connected to T-U2T [USB to
serial] downloader to program , convenient, fast;
USB data line can be directly powered
Technology Support [Github]
If you need technical support please check the link to find more details.




1. Size

T-Relay W5500 Shield
2. More Details

3. Pin Diagram




T-Relay
- 1 x Relay
- 2 x pin

T-Relay T- U2T Kit
- 1 X Relay
- 2 x Pin
- 1 X T- U2T USB to TTL

T-Relay W5500 Shield









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Who can use
It's easier to master these development boards with a basic programming knowledge [engineers/ students/ makers, etc..]
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Accelerated processing
International orders please make sure your address is in English
For Hong Kong, Macau and Taiwan orders, please note your personal ID. -
Got a question
Click on the bubble in the bottom right corner where some frequently asked questions are answered, or just drop us a line.
These boards are high quality, are well packaged and ship quickly. Their on line support is superb and I will buy again. If you put SONOFF on them, Home Assistant can activate as you require - awesome DIY relay boards!
Had programmed and in service in one hour.
uso T-relay per il controllo delle tapparelle e temperature di tutti i locali.
Like I said in the description it's a great little board. I use it for an automated plant watering system and keeping a bird bath filled. My only suggestion is adding or pre-purchasing ESP32's with a U.FL Connector for an external antenna. The short distance wifi is the only drawback of the board.
Works perfect!