ChipScout

WiFi MCUs

W801

Wi-Fi and Bluetooth SoC used in low-cost modules with vendor SDK support and Chinese-language ecosystem materials.

China-madeWinner MicroActiveModerate

Best For

Maker and embedded projects needing Wi-Fi 4 + BLE connectivity with Low cost and Wi-Fi.

Avoid If

You need a fully validated production BOM today; verify module availability, SDK maturity, and English documentation first.

Quick Decision Notes

W801 is indexed as a wifi mcus part from Winner Micro. ChipScout tracks it by practical maker-facing dimensions: interfaces, library readiness, estimated price, field-level sources, and whether the page is strong enough for selection rather than only lookup.

Technical Specifications

Core32-bit XT-Eagle CPUSource: Winner Micro
Clock Speed240 MHzSource: Winner Micro
SRAM288 KBSource: Winner Micro
WirelessWi-Fi 4 + BLESource: Winner Micro
PackageQFNSource: Winner Micro
Working Voltage3.3VSource: Winner Micro

Common Use Cases

  • Connected sensors
  • Smart home devices
  • Low-cost IoT modules

Known Issues

  • Module naming, flash size, and pin exposure vary by vendor board
  • English examples and library support should be verified before production use

Interfaces and Library Support

Interfaces
I2CSPIUARTI2SADC
Wireless
Wi-Fi 4BLE
Voltage
3.3V
Libraries
Arduino pendingMicroPython pending
Data Integrity72% confidence
Sourcehttps://www.winnermicro.com/
Last verified2026-05-19
Core specsVerified
PinoutAvailable
Library supportNeeds verification
Price rangePresent
Found a wrong spec?

Every field is meant to be source-backed. Corrections should include a datasheet URL, vendor page, module photo, or reproducible library test.

Submit correction

Source Resources

Datasheethttps://www.winnermicro.com/Winner Micro

Pinout Table

VCC3.3VPower the module from a rail that matches the breakout board, not just the bare IC.
GNDCommon groundConnect ground between the controller, sensor/module, and external power supply.
SDAMCU I2C dataUse pull-ups appropriate for the board voltage; many modules already include them.
SCLMCU I2C clockKeep wiring short for breadboard prototypes and lower bus speed if unstable.
SCKMCU SPI clockShare with other SPI devices when chip select lines are separate.
MOSIMCU SPI data outRequired for most displays, radios, and writable devices.
MISOMCU SPI data inMay be optional for write-only displays.
CSAny free GPIOUse one chip-select pin per SPI peripheral.
TXMCU RXCross TX to RX between the module and controller.
RXMCU TXCheck whether the module is 3.3V logic before connecting to 5V boards.

Pinout is not yet source-verified. Use the table as an integration checklist, then confirm exact pins against the module vendor page before wiring hardware.

Common Wiring

VCC

Power the module from a rail that matches the breakout board, not just the bare IC.

GND

Connect ground between the controller, sensor/module, and external power supply.

SDA

Use pull-ups appropriate for the board voltage; many modules already include them.

SCL

Keep wiring short for breadboard prototypes and lower bus speed if unstable.

Arduino Example

Arduino support is not verified for this record yet. Add a library resource in the admin panel once a maintained driver or vendor SDK example is confirmed.

MicroPython Example

MicroPython support is pending. Treat community scripts as prototypes until a maintained driver is linked and tested on a known development board.

Recommended Development Boards

W801 official dev board

Best first choice when available because USB, regulator, boot buttons, and pin labels match vendor docs.

ESP32-S3 DevKitC

Useful baseline for USB, I2C, SPI, UART, and Arduino/MicroPython smoke tests.

Breadboard-friendly module carrier

Use when validating power draw, pin exposure, and module variant differences.

Alternative Model Reasons

Air101WiFi MCUsCompare this option when price or module availability is the deciding constraint.
Air601WiFi MCUsCompare this option when price or module availability is the deciding constraint.
BK7231NWiFi MCUsThis alternative currently has stronger source coverage and confidence in ChipScout.
BK7231TWiFi MCUsThis alternative currently has stronger source coverage and confidence in ChipScout.

Common Questions

What is W801 best used for?

Maker and embedded projects needing Wi-Fi 4 + BLE connectivity with Low cost and Wi-Fi.

Does W801 support Arduino or MicroPython?

W801 has Arduino support pending verification and MicroPython support pending verification.

What interfaces does W801 use?

W801 lists I2C, SPI, UART, I2S, ADC; wireless support is Wi-Fi 4, BLE.

Compare W801 vs Air101

Alternatives and Related Parts

Air101

LuatOS / OpenLuat

LuatOS-friendly Wi-Fi development module for low-cost connected devices and Chinese maker projects.

China-madeWiFi MCUs68% confidence

Air601

LuatOS / OpenLuat

Low-cost Wi-Fi module used by Chinese maker communities, supported by LuatOS-oriented development materials.

China-madeWiFi MCUs70% confidence

BK7231N

Beken

Wi-Fi and Bluetooth LE MCU found in many low-cost smart home devices and Tuya-compatible modules.

China-madeWiFi MCUs74% confidence

BK7231T

Beken

Popular Beken Wi-Fi and Bluetooth LE MCU variant used in smart plugs, bulbs, switches, and Tuya-class devices.

China-madeWiFi MCUs74% confidence