> For the complete documentation index, see [llms.txt](https://docs.ifreeq.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ifreeq.com/developer/device-development/access-mode-mcu.md).

# Access Mode MCU

- [MCU Access Guide](https://docs.ifreeq.com/developer/device-development/access-mode-mcu/mcu-access-guide.md)
- [Wi-Fi General Solution](https://docs.ifreeq.com/developer/device-development/access-mode-mcu/wi-fi-general-solution.md)
- [Wi-Fi Module MCU Development Overview](https://docs.ifreeq.com/developer/device-development/access-mode-mcu/wi-fi-general-solution/wi-fi-module-mcu-development-overview.md)
- [Hardware Design Reference Wi-Fi](https://docs.ifreeq.com/developer/device-development/access-mode-mcu/wi-fi-general-solution/hardware-design-reference-wi-fi.md)
- [Software Reference Wi-Fi](https://docs.ifreeq.com/developer/device-development/access-mode-mcu/wi-fi-general-solution/software-reference-wi-fi.md)
- [Tuya Cloud Universal Serial Port Access Protocol](https://docs.ifreeq.com/developer/device-development/access-mode-mcu/wi-fi-general-solution/software-reference-wi-fi/tuya-cloud-universal-serial-port-access-protocol.md)
- [Overview of migrating Tuya's MCU SDK](https://docs.ifreeq.com/developer/device-development/access-mode-mcu/wi-fi-general-solution/software-reference-wi-fi/overview-of-migrating-tuyas-mcu-sdk.md)
- [Wi-Fi Power Off Fast Connect Device Solution](https://docs.ifreeq.com/developer/device-development/access-mode-mcu/wi-fi-power-off-fast-connect-device-solution.md)
- [Overview](https://docs.ifreeq.com/developer/device-development/access-mode-mcu/wi-fi-power-off-fast-connect-device-solution/wi-fi-power-off-fast-connect-device-development-overview.md)
- [Zigbee General Solution](https://docs.ifreeq.com/developer/device-development/access-mode-mcu/zigbee-general-solution.md)
- [Overview](https://docs.ifreeq.com/developer/device-development/access-mode-mcu/zigbee-general-solution/zigbee-module-mcu-development-overview.md)
- [Software development](https://docs.ifreeq.com/developer/device-development/access-mode-mcu/zigbee-general-solution/software-development.md)
- [Tuya Zigbee module UART communication protocol](https://docs.ifreeq.com/developer/device-development/access-mode-mcu/zigbee-general-solution/software-development/tuya-zigbee-module-uart-communication-protocol.md)
- [Hardware Design](https://docs.ifreeq.com/developer/device-development/access-mode-mcu/zigbee-general-solution/hardware-design.md)
- [BLE General Solution](https://docs.ifreeq.com/developer/device-development/access-mode-mcu/ble-general-solution.md)
- [BLE Module MCU Development Overview](https://docs.ifreeq.com/developer/device-development/access-mode-mcu/ble-general-solution/ble-module-mcu-development-overview.md)
- [BLE Hardware Design](https://docs.ifreeq.com/developer/device-development/access-mode-mcu/ble-general-solution/ble-hardware-design.md)
- [NB-IoT General Solution](https://docs.ifreeq.com/developer/device-development/access-mode-mcu/nb-iot-general-solution.md)
- [NB-IoT Development Guide](https://docs.ifreeq.com/developer/device-development/access-mode-mcu/nb-iot-general-solution/nb-iot-development-guide.md)
- [Introduction to NB Module - NM1](https://docs.ifreeq.com/developer/device-development/access-mode-mcu/nb-iot-general-solution/introduction-to-nb-module-nm1.md)