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Regular price $17.98 USD
Regular price Sale price $17.98 USD
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⚠️Please note that all policy page on site only applies to items purchased from our store:

Relevant technical or usage issues can be also discussed in our GitHub or Community.

About Tax

At present, the price of the platform does not include any tax.
European customers should pay attention to the tax problem after the package reaches the local country, which needs to be borne/handled by the customer, the local policy shall prevail

[orders over 150 euros may generate tax (Amount for reference only), for orders over this amount, we will not inform the customer separately, so please pay attention to it by yourself.]

Commended User

People with programming foundation[engineers / students / makers, etc..]

Shipping & Delivery

Please read the following rules carefully before submitting your order, otherwise, we can't process your order.

  1. For international orders, please make sure the language of the delivery address is in English
  2. For domestic orders (Mainland China), please make sure the language of the delivery address is Chinese.
  3. For Hong Kong, Macau, and Taiwan orders, please provide your tax ID number, or the corresponding ID card number, and the corresponding GUI Number if the recipient is a company name.


Methods & Delivery Time

  1. Standard Express: 25-30 Days
  2. EUB: 25-30 Days
  3. YunTu Express: 10-20 Days
  4. DHL: 10-17 Days
  5. FedEx: 10-17 Days
  6. YanWen: 20-35 Days

Please note that all delivery times are estimated for reference only.

During ship, maybe some methods of transport do not update the logistic track until the parcel reaches the destination country.

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 help.

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.

Adapt to RS232 DB9 female connector, DC input 5V~12V


MCU ESP32-C3 32-bit, RISC-V-based MCU
Support Wi-Fi and Bluetooth 5 (LE)
Flash 4MB
Programming platform Arduino, ESP-IDF
Onboard functions  WS2812(GPIO4), Button: Reset+ Boot(GPIO9) + IO2
 Full-duplex high-speed RS232 module
Module Name RSM232MT5V
Port TTL/RS232
Isolation voltage 3000V
lsolation output 5V/50mA 0.5W
Communication rate  1200~256000bps
 Full-duplex high-speed RS485 module
Module Name RSM485MT5V
Port TTL/RS485
Isolation voltage 3000V
lsolation output 5V/50mA 0.5W
Communication rate  1200~256000bps

Sample Code For Reference

If you need technical support please check below link to find more details.




 Pin Diagram

 More Details

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