Cortex-M Experiment Box (CW32) Overview

The Cortex-M Experiment Box (CW32 version) is a development experiment device based on the CW32F030C8T6.

The CW32F030C8T6, launched by Wuhan Xinyuan Semiconductor Co., Ltd., is a cost-effective domestic MCU based on ARM’s Cortex-M0+ core, with a maximum clock frequency of 64MHz, 64KB of FLASH, 8KB of RAM, and in an LQFP48 package. It is fully compatible with hardware of MCUs like STM32F030C8T6 and STM32F103C8T6 (PINTOPIN compatible), and its software and firmware libraries are consistent with STM32 style, allowing for quick onboarding. Additionally, it offers better performance than STM32 and similar domestic MCUs, with a full range supporting 1.65~5.5V power supply, lower power consumption, higher anti-interference capability, and operating temperature range of -40~105 degrees Celsius.

The Cortex-M Experiment Box is an experimental innovation platform consisting of a “main control board + expansion board + Arduino module + function baseboard.” The platform includes the experiment box, power supply, voltmeter, ammeter, emulator, control board, expansion board + function modules. The most significant feature of this innovative platform is its modular structure and the use of Arduino-compatible expansion interfaces, allowing for unlimited flexible expansion to meet various experimental, innovative, and research requirements.

The experimental system comes with a dedicated housing and is equipped with a 12V5A DC stabilized power supply, a digital display voltmeter, an analog ammeter, and comprehensive short circuit protection features. The ammeter has a range of 0-2A, and the voltmeter can measure a range of 0-12V. When measuring voltage, the measurement probes should be connected in parallel across the circuit terminals and must not be reversed, with GND connected to the circuit ground and V connected to the voltage measurement terminal of the circuit.

The main control board is rich in resources: it includes a WCH-LINK download debugger for circuit simulation and debugging. Additionally, it has 1 CW32F030C8T6 core board, 1 1.77 inch TFT display, 1 potentiometer, a buzzer, 3 user buttons, 3 indicator lights, and various expansion interfaces, fulfilling the requirements for various applications, evaluations, experiments, innovations, and research.

The expansion board features a GYMCU680P air quality detection module, which can obtain temperature, humidity, atmospheric pressure, IAQ, GAS, altitude, and other meteorological parameters via a TTL serial port. It also includes two Arduino expansion modules: a WIFI IoT module and a matrix keyboard module. The WIFI IoT module includes an ESP8266 module, a DHT11 temperature and humidity sensor, a DS18B20 single-bus temperature sensor, a light-sensitive resistor sensor, a buzzer, buttons, indicator lights, and other resources. Through the WIFI IoT module, point-to-point two-way communication can be achieved between a mobile APP or mini-program and the evaluation board, allowing for cloud connectivity. For example, data flow can be achieved through common IoT platforms like Alibaba Cloud IoT Platform and ONENET IoT Platform, and various front-end and back-end framework technologies can be employed to realize multiple display methods for device information, such as through an APP, mini-program, or webpage, etc.

The experiment box comes with comprehensive advanced examples and various technical support services.

The resource configuration of the main control board is as follows:

l 48PIN MCU: CW32F030C8T6 microcontroller, 64M clock frequency

l WCHLINK download debugger;

l 5V, GND, 3.3V power supply, output through 2.54mm single-row pin header;

l All GPIOs are output through 2.54mm (100mil) pitch dual-row pin headers;

l One system reset button (NRST button on the core board)

l Power LED indicator (3.3V power indicator on the core board);

l 3 user buttons;

l 3 LED lights;

l One 1.77TFT display;

l One active buzzer;

l One potentiometer;

l Bluetooth interface;

l WIFI interface;

l Electronic scale interface;

l DHT11 temperature and humidity interface;

l ESP8266 interface

l Expansion board interface

The resource configuration of the expansion board is as follows:

l One 12VDC interface (default connected, no external plug required)

l Power switch (this switch cannot control 5V and 3.3V when the USB debugging cable is connected)

l 12V, 5V, 3.3V, GND pin header output

l GYMCU680 air quality module

l Matrix keyboard interface switch

l WIFI IoT module (can be replaced with other Arduino modules)

l Matrix keyboard module (when the switch is ON, no external wires need to be connected to the MCU)

Product Physical:

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