LCSC GigaDevice GD32VW553 Datasheet - WiFi 6+BLE 5.2, 4 MB, 160Mhz MCU - OpenGD32 Firmware

divadiow 02 Jun 2026 20:44 35 1785 Cool? (+3)

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TL;DR

GigaDevice’s GD32VW553 is a Wi‑Fi 6 + Bluetooth LE 5.2 combo MCU family built around a 32-bit RISC-V core running at up to 160 MHz.
The board work pairs a specs roundup with a hands-on flash-and-boot test on an LCSC GD32VW553HMQ6 board using GigaDevice’s all-in-one programmer and OpenGD32VW553 firmware.
The tested chip identifies as GD32VW553HMQ6 with 4096KB flash, 320KB SRAM, and no external flash; the family also offers 2 MB and 4 MB variants.
OpenGD32 boots successfully, the AP appears as expected, and the LCSC board maps the user button to PA0 and the LED to PC13.
At the time of posting, the MCU is mostly seen on development boards, and no commercial product using it had been identified yet.

AI summary based on the discussion. May contain errors.

The GD32VW553 is a GigaDevice Combo Wireless MCU family based on a 32-bit RISC-V core running at up to 160 MHz. GigaDevice announced the official launch on 6 November 2023, with samples and evaluation boards available for request at that time and mass production/delivery scheduled from December 2023.

GigaDevice positions the series for wireless application scenarios including smart home appliances, smart home systems, industrial Internet, and communication gateways. It also describes the family as suitable for budget-constrained scenarios such as office equipment, payment terminals, and other IoT products. GigaDevice separately mentions industrial control interconnection, lighting equipment, and socket panels as application scenarios for the device voltage and high-temperature range.

Main specifications:

* CPU: 32-bit RISC-V core
* Maximum clock: 160 MHz
* Wireless: 2.4 GHz Wi-Fi 6 + Bluetooth LE 5.2
* Wi-Fi standards: IEEE 802.11ax, backward compatible with IEEE 802.11b/g/n; HT20 listed in the product selector
* Wi-Fi 6 features listed by GigaDevice: OFDMA, MU-MIMO, Target Wake Time
* Bluetooth: Bluetooth LE 5.2
* BLE data modes: 2 Mbps high-speed mode, plus 125 kbps / 500 kbps coded PHY modes
* Flash: 2 MB or 4 MB internal Flash, depending on part
* SRAM: 320 KB
* Instruction cache: 32 KB configurable I-Cache
* Supply voltage: 1.8 V to 3.6 V
* Packages: QFN32 and QFN40
* GPIO: up to 21 GPIOs on QFN32 parts, up to 28 GPIOs on QFN40 parts in the product selector; the launch article says up to 29 programmable GPIO pins
* ADC: 12-bit ADC, 1 unit, up to 9 channels
* Timers: GigaDevice's launch article lists 2 × 32-bit general-purpose timers, 2 × 16-bit general-purpose timers, 4 × 16-bit basic timers, and 1 × PWM advanced timer. The current product selector lists 2 × 32-bit GPTM, 2 × 16-bit GPTM, 1 × 16-bit advanced timer, 1 × 16-bit basic timer, 1 × 64-bit SysTick, 2 watchdogs, and 1 RTC.
* Interfaces: 3 × U(S)ART, 2 × I²C, 1 × SPI, and 1 × four-wire QSPI
* Security features listed by GigaDevice: WPA/WPA3 support, hardware DES, 3DES, AES, Hash acceleration, PKCAU, and TRNG
* Temperature range: -40 °C to +85 °C or -40 °C to +105 °C, depending on part suffix
* Development support: GD32VW55x Wi-Fi & BLE SDK, RTOS support, hardware drivers, wireless protocol stack, application routines, IoT communication protocols, API documentation, application notes, GD32 Embedded Builder, GD32 IDE, GD-LINK, GD32 All-In-One Programmer, SEGGER Embedded Studio support, and IAR support
* Certifications stated by GigaDevice: Wi-Fi 6 certification, Bluetooth certification, and FCC/CE RF compliant

Part No	Package	Flash	SRAM	GPIO	Temperature range
GD32VW553KIQ7	QFN32	2 MB	320 KB	up to 21	-40 °C to +105 °C
GD32VW553KMQ7	QFN32	4 MB	320 KB	up to 21	-40 °C to +105 °C
GD32VW553HIQ7	QFN40	2 MB	320 KB	up to 28	-40 °C to +105 °C
GD32VW553HMQ7	QFN40	4 MB	320 KB	up to 28	-40 °C to +105 °C
GD32VW553KIQ6	QFN32	2 MB	320 KB	up to 21	-40 °C to +85 °C
GD32VW553KMQ6	QFN32	4 MB	320 KB	up to 21	-40 °C to +85 °C
GD32VW553HIQ6	QFN40	2 MB	320 KB	up to 28	-40 °C to +85 °C
GD32VW553HMQ6	QFN40	4 MB	320 KB	up to 28	-40 °C to +85 °C

sources:
https://www.gigadevice.com/product/mcu/wireless-mcus/gd32vw553-series
https://www.gigadevice.com/about/news-and-event/news/gigadevice-launches-gd32vw553-series
https://www.gigadevice.com/product/mcu/mcus-product-selector/gd32vw553hiq7
https://fcc.report/company/Gigadevice-Semiconductor-Inc

At time of posting, GD32VW553 is mostly seen on development boards. I don't believe we've identified a commercial product using this MCU yet.

Official GigaDevice EVAL board
https://gigadevice.eu/products/gd32vw553h-eval

Official GigaDevice START board
https://www.gd32mcu.com/data/documents/applic...20GD32VW553%20Quick%20Development%20Guide.pdf

LCSC-boards LCKFB-GD32VW553-HMQ6
https://www.lcsc.com/product-detail/C49304632.html

Firefly Workshop GD32VW553-IOT-V2
https://www.cecport.com/en/solutionsDetail?id=123

undoubtedly others.

I bought the GD32VW553HMQ6 LCSC board from Ali Express for £5.14 delivered https://www.aliexpress.com/item/1005009723659760.html
It seems to be eligible for Welcome Deal pricing at the moment

I have just opened the packet and am discovering things as I go.

GigaDevice supply an all-in-one programming tool for the GD32VW5

https://www.gd32mcu.com/en/download/7?kw=GD32VW5

The 7z download seems to contain English documentation, xmodem stub files, flash and efuse option xmls

First, a dump of the factory flash content to file. Hold BOOT0 button down (pulls PC08 high) and RST to get into programming mode.

Connect

UART button in GD32 AIO app.

My chip is detected as GD32VW553HMQ6, 4096KB flash and 320KB SRAM, no external flash.

Save full chip flash to file with 'Upload' section (upload to your PC, to a file), after specifying destination file name and location.

At boot, factory firmware from PA06 (UART2_TX) @115200 baud prints:

and from PB15 (UART1_TX) simply:

Now to download (to the GD32) @insmod's OpenGD32VW553 port - the latest development build from https://github.com/openshwprojects/OpenBK7231T_App/actions/runs/26806809717

OpenGD32 boot log from PA06 at 1500000 baud

and AP is seen as expected

Screenshot of OpenGD32VW553 status page with Config, Restart, and Launch Web Application buttons

The user button on the LCSC is PA0. The LED is PC13.

Attachments:

LCSC-boards LCKFB-GD32VW553-HMQ6_datasheet.pdf (10.16 MB) You must be logged in to download this attachment.

About Author

divadiow wrote 5195 posts with rating 913 , helped 446 times. Live in city Bristol. Been with us since 2023 year.

Comments

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p.kaczmarek2 03 Jun 2026 00:48

Thanks for sharing! How is the stability of this new platform? Here is some more info and datasheets: GD32VW553xx Datasheet_Rev1.5.pdf GD32VW553-MINI datasheet Rev1.1 20250225.pdf GD32VW55x... [Read more]

insmod 03 Jun 2026 03:46

2.5 days online without any crashes. I've tried to implement as much as possible, and i think i've more or less succeeded in it. All basic and advanced features i had thought about are supported, except... [Read more]

divadiow 03 Jun 2026 07:33

I guess ceramic antennas are maybe not so great. I didn't know they were a thing tbh. GD32 dumps from our respective boards https://github.com/divadiow/FlashDumps/tree/main/IoT/GD32VW55X insmod's... [Read more]

p.kaczmarek2 03 Jun 2026 10:25

What are the security mechanisms available in GD32? Does it have something like Beken keys? I am wondering if this SDK is indeed Tuya-ready [Read more]

insmod 03 Jun 2026 10:55

AES encryption + secure boot. I don't think Tuya uses them. [Read more]

p.kaczmarek2 03 Jun 2026 12:06

I think that firmware encryption/secure boot (and HTTPS) are mandatory for new IoT products in EU, but Tuya is not obviously in EU, it's China all the way. Curious to see what will they do. @ElektrodaBot... [Read more]

divadiow 03 Jun 2026 17:54

some Tuya bits for the record https://airtake-public-data-1254153901.cos.ap-shanghai.myqcloud.com/smart/embed/pruduct/gd32vw553_0.0.1.zip https://airtake-public-data-1254153901.cos.ap-shanghai.myq... [Read more]

p.kaczmarek2 04 Jun 2026 12:23

@divadiow those are huge, anything interesting in there? It seems that AI didn't get my requets. Let me retry. @ElektrodaBot are there any regulations and requirements for new IoT products in EU?... [Read more]

insmod 04 Jun 2026 12:36

Flasher mode: GD32VW553 Going to open port: COM7. Port ready! Bootloader version: 0x30 Product ID: 7HMP Uploading stub to 0x20002000... 0x0..0x100..0x200..0x300..0x400..0x500..0x600..0x700..0x800..0x900..0xA00..0xB00..0xC00..0xD00..0xE00..0xF00..0x1000..0x1100..0x1200..0x1300..0x1400..0x1500..0x1600..0x1700..0x1800..0x1900..0x1A00..0x1B00..0x1C00..0x1D00..0x1E00..0x1F00..0x2000..0x2100..0x2200..0x2300..0x2400..0x2500..0x2600..0x2700..0x2800..0x2900..0x2A00..0x2B00..0x2C00..0x2D00..0x2E00..0x2F00..0x3000..0x3100..0x3200..0x3300..0x3400..0x3500..0x3600..0x3700..0x3800..0x3900..0x3A00..0x3B00..0x3C00..0x3D00..0x3E00..0x3F00..0x4000.. Stub... [Read more]

p.kaczmarek2 04 Jun 2026 12:38

Edit: was there a bug? https://obrazki.elektroda.pl/5158148700_1780569478_bigthumb.jpg [Read more]

insmod 04 Jun 2026 12:40

Yes, but only for BMP180 [Read more]

divadiow 04 Jun 2026 13:37

not much. delete the toolchain folder and the zip is then 500k https://obrazki.elektroda.pl/3625611600_1780571351_bigthumb.jpg these pruduct zips are mainly only the toolchain side, the SDK... [Read more]

insmod 04 Jun 2026 14:45

Flasher: https://github.com/openshwprojects/BK7231GUIFlashTool/pull/131 Didn't test erase, moved a lot of ECR functions to a base class, and didn't test if ECR still works. Stub should support all... [Read more]

ElektrodaBot 04 Jun 2026 17:26

Short answer Yes. If an IoT product is sold in the EU, the EU rules apply, even if the cloud/SDK/vendor is Tuya in China. The EU importer/seller/manufacturer must make it compliant. Main rules ... [Read more]

divadiow 04 Jun 2026 22:56

https://obrazki.elektroda.pl/5545171200_1780606190_thumb.jpg https://obrazki.elektroda.pl/4835419600_1780606384_thumb.jpg https://obrazki.elektroda.pl/9610936900_1780606562_thumb.jpg seems... [Read more]

p.kaczmarek2 05 Jun 2026 14:52

Ok, I merged both PRs now. I will also review other pending changes. What's next on plan? [Read more]

insmod 05 Jun 2026 14:55

I'm planning on porting BK7236, but using their open T3 sdk, not bk_idk. [Read more]

insmod 06 Jun 2026 05:48

@divadiow since you have HMQ6 chip, what is the product ID it reports in the flasher? 7HMP for HMQ7. [Read more]

divadiow 06 Jun 2026 06:36

Bootloader version: 0x30 Product ID: 6HMP Added after 5 [minutes]: GD32VW553KIQ6 -> 6KIP GD32VW553KMQ6 -> 6KMP GD32VW553HIQ6 -> 6HIP GD32VW553HMQ6 -> 6HMP GD32VW553KIQ7 -> 7KIP GD32VW553KMQ7... [Read more]

FAQ

TL;DR: The GD32VW553 packs a 160 MHz RISC-V core, Wi-Fi 6, BLE 5.2, and up to 4 MB flash; one developer reports “2.5 days online without any crashes.” This FAQ helps firmware developers and board buyers understand specs, flashing, UART logs, and the main antenna-related reconnect issue on low-cost LCSC boards. [#21914654]

Why it matters: It is one of the cheapest new Wi-Fi 6 plus BLE 5.2 RISC-V MCU platforms discussed with real OpenGD32 bring-up details and field notes.

Option	Flash	Package	GPIOs	Temperature range
GD32VW553KxQ6	2 MB or 4 MB	QFN32	up to 21	-40 °C to +85 °C
GD32VW553HxQ6	2 MB or 4 MB	QFN40	up to 28	-40 °C to +85 °C
GD32VW553KxQ7	2 MB or 4 MB	QFN32	up to 21	-40 °C to +105 °C
GD32VW553HxQ7	2 MB or 4 MB	QFN40	up to 28	-40 °C to +105 °C

Key insight: The platform already boots OpenGD32 and exposes a usable AP, but board-level antenna behavior is the main practical limit. The software looks workable; RF consistency looks more fragile than the core firmware path.

Quick Facts

The MCU combines a 32-bit RISC-V core at up to 160 MHz with 2.4 GHz Wi-Fi 6 and Bluetooth LE 5.2, targeting low-cost IoT and gateway designs. [#21914506]
Internal memory is 320 KB SRAM with either 2 MB or 4 MB flash, and the tested LCSC board used a GD32VW553HMQ6 with 4096 KB flash and no external flash detected. [#21914506]
Electrical and environmental range matters for embedded design: supply voltage is 1.8 V to 3.6 V, while part suffixes span -40 °C to +85 °C or -40 °C to +105 °C. [#21914506]
On the low-cost board, the factory image prints on PA06 at 115200 baud, while the OpenGD32 build logs on PA06 at 1500000 baud and creates an AP at 192.168.4.1/24. [#21914506]
A practical field result is already available: one developer reported 2.5 days of uptime with no crashes, but also warned that the dev board antenna can disconnect and fail to reconnect if router alignment is poor at 2–3 m. [#21914654]

What are the main specifications of the GigaDevice GD32VW553, including CPU speed, Wi‑Fi 6, BLE 5.2, flash, SRAM, and package options?

The GD32VW553 is a 32-bit RISC-V wireless MCU clocked up to 160 MHz. It integrates 2.4 GHz Wi-Fi 6, Bluetooth LE 5.2, 320 KB SRAM, and either 2 MB or 4 MB internal flash. GigaDevice lists QFN32 and QFN40 packages, with up to 21 GPIOs on QFN32 parts and up to 28 GPIOs on QFN40 parts. Supply voltage is 1.8 V to 3.6 V, and temperature grades reach either +85 °C or +105 °C, depending on suffix. [#21914506]

How stable is the OpenGD32 firmware port on the GD32VW553 in real use, and what uptime has been reported so far?

The reported stability is good so far, with 2.5 days online without any crashes. The developer also says most planned basic and advanced features already work, except pin deep sleep. That makes the port usable for early testing, but not yet feature-complete. In short, the current evidence shows solid short-term uptime, not long-term production validation. [#21914654]

How do I put the LCSC GD32VW553 board into programming mode and dump the factory flash with the GD32 All-In-One Programmer?

Use BOOT0 and reset to enter the built-in programming mode, then read flash with the PC tool. 1. Hold the BOOT0 button so PC08 is pulled high, then press RST. 2. In GD32 AIO Programmer, use the Connect UART button. 3. In the Upload section, choose a destination file and save the full chip flash to your PC. The tested board identified itself as GD32VW553HMQ6 with 4096 KB flash and 320 KB SRAM. [#21914506]

Why does the LCSC GD32VW553 development board sometimes disconnect or fail to reconnect to Wi‑Fi, even when it is only a few meters from the router?

The main cause reported in the thread is the dev board’s weak or awkward antenna behavior, not a confirmed firmware crash. The developer says the antenna is “very wonky” and may behave like the ECR6600 if it is not aligned properly to the router. That issue appeared even at only 2–3 meters distance and could lead to disconnects followed by failed reconnects. [#21914654]

Which UART pins on the GD32VW553 LCSC board output the factory boot log and READY message, and what baud rates are used?

PA06 outputs the factory boot log on UART2_TX at 115200 baud, and PB15 outputs a simple READY message on UART1_TX. After flashing OpenGD32, PA06 is also used for the new debug log, but at 1500000 baud instead. Those pin assignments give you two practical serial observation points during bring-up. [#21914506]

How do I flash insmod's OpenGD32VW553 build from the OpenBK7231T_App GitHub Actions onto a GD32VW553HMQ6 board?

Flash it with the same GD32 programming path used for the factory image, then verify the new UART log and AP. 1. Download the latest development build from the OpenBK7231T_App GitHub Actions link mentioned in the thread. 2. Put the board into programming mode with BOOT0 plus RST and use the GD32 AIO tool over UART. 3. After flashing, watch PA06 at 1500000 baud and confirm the AP appears at 192.168.4.1/24. [#21914506]

What do the GD32VW553 boot log messages like 'Boot from Image 1', 'WiFi calibration done', and 'PHY initialization finished' mean?

They indicate a normal staged boot, RF setup, and radio initialization sequence. “Boot from Image 1” means the bootloader selected the first firmware image and validated it before jumping to the main image at 0x081ea000. “WiFi calibration done” shows radio calibration completed, and “PHY initialization finished” means the physical-layer wireless block finished initialization. The same thread also shows the factory firmware reporting SDK Version v1.0.3 with build date 2025/05/14 14:15:13. [#21914506]

Where can I find the GD32VW553 datasheet, user manual, SDK, and programmer tools for this Wi‑Fi 6 plus BLE MCU?

The thread points to both official vendor files and mirrored attachments. It lists the GD32VW553 series product page, the launch page, the GD32VW5 download area for the all-in-one programmer, and a quick development guide PDF for the START board. It also includes attached copies of the GD32VW553xx Datasheet Rev1.5, GD32VW553-MINI datasheet Rev1.1 dated 2025-02-25, the GD32VW55x User Manual, and a programmer mirror. [#21914645]

What is OFDMA in Wi‑Fi 6, and why is it relevant on the GD32VW553 series?

“OFDMA” is a Wi-Fi 6 radio feature that splits a channel into smaller resource units, improving efficiency when many small transfers share airtime. It matters here because GigaDevice explicitly lists OFDMA among the GD32VW553 Wi-Fi 6 features, alongside MU-MIMO and Target Wake Time. That makes the chip more relevant for dense IoT traffic than a plain legacy 802.11b/g/n-only MCU. [#21914506]

What is PKCAU on the GD32VW553, and how does it relate to the chip's hardware security features like AES, Hash, and TRNG?

“PKCAU” is a hardware public-key cryptography accelerator unit that speeds asymmetric security operations, offloading heavy math from the MCU core. On the GD32VW553, it sits alongside hardware DES, 3DES, AES, Hash acceleration, and a TRNG in the security feature list. Together, those blocks support stronger embedded security than a software-only implementation on the 160 MHz core. [#21914506]

GD32VW553 QFN32 vs QFN40: which package is better if I need more GPIOs or a different temperature range?

Choose QFN40 if you need more GPIOs, and choose by suffix if you need a wider temperature grade. The product table lists up to 21 GPIOs on QFN32 parts and up to 28 GPIOs on QFN40 parts. Temperature range does not depend on package alone; both package families appear in -40 °C to +85 °C and -40 °C to +105 °C variants. [#21914506]

How do the 2 MB and 4 MB GD32VW553 variants affect firmware support, especially when the SDK is configured for 4 MB flash?

Flash size matters because the current SDK setup mentioned in the thread is configured for 4 MB, while 2 MB variants also exist. That means binaries or partition assumptions may need adjustment before moving the same firmware to smaller parts. The tested board used a 4 MB GD32VW553HMQ6, so the demonstrated OpenGD32 bring-up matches the larger flash configuration, not the 2 MB edge case. [#21914654]

What is the logport command in OpenGD32VW553, and how do I use it to switch the log UART or change the 1500000 baud debug speed?

The logport command switches the log UART and can also change baud rate. The developer says the first argument can be -1 to restore the default log port, and the second argument sets the baud rate. The current build uses 1500000 baud by design to improve performance because the UART is thought to be polling rather than DMA-driven. [#21914654]

How does the GD32VW553 compare with the ECR6600 for low-cost Wi‑Fi development boards, especially in antenna behavior and reconnect reliability?

The thread compares them mainly on antenna behavior, not CPU or feature parity. The developer says the GD32VW553 dev board may show the same router-alignment sensitivity as the ECR6600, including disconnects and failed reconnects. That means the GD32VW553 currently looks promising in firmware support, but its low-cost board RF behavior may still resemble the ECR6600’s practical weakness. [#21914654]

What are the user button and LED pin assignments on the LCSC GD32VW553-HMQ6 board, and how can I use PA0 and PC13 in custom firmware?

The LCSC GD32VW553-HMQ6 board maps the user button to PA0 and the LED to PC13. In custom firmware, treat PA0 as a local input for buttons, pairing triggers, or mode selection, and use PC13 as a status output for boot, Wi-Fi, or error indication. Those two pins are already identified in the thread, so they are the safest first targets for board-specific GPIO testing. [#21914506]

AI summary based on the discussion. May contain errors.