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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
We only charge the product cost and shipping cost.
1. For Standard Express Order: You may not need to deal with customs clearance, just need to pay attention to the track of the parcel, but this is not absolute, if your parcel is inspected by the customs, then you need to assist in dealing with customs clearance.
2. For DHL/ FedEx Order: You need to deal with the relevant customs clearance matters, as well as pay the tariff, the specific amount of tariff please pay attention to the policy of your country.
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The above tariffs are for reference only, please pay attention to your country's tax policy for more detailed instructions, if you need our help or have questions please feel free to contact us.
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!