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T-OI Plus

T-OI Plus

ESP32-C3 RISC-V MCU Wireless Module Development Circuits Board

Regular price $5.50 USD
Regular price Sale price $5.50 USD
Sale Sold out

⚠️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.

LILYGO® TTGO T-OI Plus ESP32-C3 RISC-V MCU Wireless Module Development Circuits Board Wi-Fi Bluetooth With 16340 Battery Holder


Battery Holder  With/Without 16340 Battery Holder
Grove connectors 4 Pin, 2.0mm
Serial port chip CH340K


Main CPU

RISC-V 32-bit Microprocessor 400KBofSRAM,


Clock Speed 1 60MH



2 x 12-bit SAR ADCs, up to 6 channels



3xSPI, 2x UART, 1 xI2C, 1 x 12S LED PWM, TWAI, Timers, RMT, Full-speed USB Serial
Wi-Fi IEEE 802.11 b/g/n-compliant Supports Station, SoftAP, SoftAP + Station mode
Bluetooth  Bluetooth 5, Bluetooth mesh


Technology Support [Github]

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





TTGO T-OI ESP8266 16340 Battery Holder : waiting....

T-OI PLUS Features:

T-OI PLUS is based on the ESP32-C3 main control chip, ESP32-C3 is a safe, low-power, low-cost RISC-V

MCU supports Wi-Fi and Bluetooth 5 (BLE).

T-OI PLUS Introduce:

Rich memory resources can meet the functional requirements of various common IoT products.

Continue the T-OI ESP8266 version appearance structure design.

1. With Grove Connectors:

-- Compatible MINI D1 Expansion Shield

-- Compatible Grove Interface Module.

2. With 16340 lithium Battery Holder

-- Chargeable Battery Holder

3. Added Without Battery Holder Options

-- Which is convenient for use in up-and-down expansion mode and breadboard mode.

1. Size

2. Pin Diagram

With Battery Holder Options(Notice: Battery Not Included)

  • 1 X T-OI plus ESP32-C3 (With Battery Holder)
  • 2 X Pins

No Battery Holder Options

  • 1 X T-OI plus ESP32-C3 (Without Battery Holder)
  • 2 X Pins

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