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Home / Development Boards & Control Boards / Chaozi Talks IoT STM32 LoRa Development Board WiFi 4G LoRa Gateway OTA Remote Upgrade

Attributes

Brand -
Category Electronic Components / Maker DIY / Development Boards & Control Boards
Origin -
Microcontroller Unit STM32 Cortex-M4
Wireless Connectivity LoRa, WiFi, 4G LTE
Firmware Update OTA Remote Upgrade Supported
Input Voltage 5V DC via USB
Logic Level 3.3V
Flash Memory 512 KB
SRAM 64 KB
Operating Temperature -40°C to 85°C
Dimensions 55mm x 35mm
Interfaces UART, SPI, I2C, GPIO, USB

5 reviews

A

Anonymous

Mar 11, 2026

Rating: 4/5

Good hardware, docs could be better

The hardware is robust and the 4G module connects quickly. Documentation was a bit sparse initially.

A

Anonymous

Mar 07, 2026

Rating: 5/5

Great for IoT Prototyping

Solid board with excellent connectivity options. The OTA feature works smoothly.

A

Anonymous

Feb 27, 2026

Rating: 5/5

OTA Upgrade is a Game Changer

Being able to update firmware remotely saves so much time in deployment. Highly recommend.

A

Anonymous

Feb 11, 2026

Rating: 5/5

Perfect for LoRa projects

Long-range communication is stable. STM32 core is powerful enough for my sensor network.

A

Anonymous

Jan 27, 2026

Rating: 4/5

Versatile connectivity

WiFi and LoRa switching is easy to configure. Power consumption is reasonable for battery projects.

5 FAQ

Q: What size SIM card is needed?

A: It requires a standard Nano SIM card for 4G connectivity.

Q: Is the SDK open source?

A: Basic libraries are provided, full SDK access requires registration.

Q: Can it run on battery?

A: Yes, it supports Li-Po battery connection via the PH2.0 interface.

Q: Which IDE is compatible?

A: It supports STM32CubeIDE and Keil MDK.

Q: Does it come with an antenna?

A: Yes, a LoRa antenna is included in the package.

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