LILYGO®
ESP32 Wireless Module DC 5V 4 Groups Relay Development Board
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About Tax
About Tax
At present, the price of the platform does not include tax.
Customers in Europe should pay attention to the tax problem after the package reaches the local country.
[orders over 150 euros may generate tax, which needs to be borne/handled by the customer, the local policy shall prevail.]
Commended User
Commended User
People with programming foundation[engineers / students / makers, etc..]
Shipping & Delivery
Shipping & Delivery
Methods & Delivery Time
During ship, maybe some methods of transport do not update the logistic track until the parcel reaches the destination country.
- Standard Express: 25-30 Days
- EUB: 25-30 Days
- YunTu Express: 10-20 Days
- DHL: 10-17 Days
- FedEx: 10-17 Days
We can ship to DHL/FedEx through a third-party channel (Freight Forwarder) because we don't have DHL/FedEx account.
Means : we --> third-party channel(Freight Forwarder) -->official DHL /Fedex-->you
If you do not see one of the above shipping methods when checking out, it may be because your country does not support that shipping method, please select one of the available channels already listed or contact us for assistance.
Please note that all delivery times are estimated for reference only.
When we are processing the order, if the system suggests that your postcode is remote, we will automatically replace it with another shipping channel of the same class for you (except HDL and FedEx), We will send you an email if there are special situations, or you can leave us a message if you have any requirements.
Please make sure your address is fully filled in (including province and continent, which will affect the shipping time of your order)
For more details please check our shipping policy.
The Version‘s Picture Hasn't Changed
The Version‘s Picture Hasn't Changed
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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
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
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Step4.

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!
I really like the T-Relay Board! The design and functionality are well done. The only thing that is missing on the board is an Ethernet Port. I've already suggested this to the team, and they're on it. Can't wait to see the updated version!
Envío rápido
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