HK32F030M - Chinese ARM for 15 cents

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#61 20602976 02 Jun 2023 04:03

dabyd64 dabyd64

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Post #61
20602976 02 Jun 2023 04:03

Final board

Quote:

Basic BOM:

CH340E
HK32F030MF4P6
SX3M32.000M20F30TNN
TYPE-C-31-M-12
ME6211A33PG-N
1N5819WT
HS91L02W2C01
XL-3216RGBC
CTS-3425J-V-TR

Rest are common parts easily sourced anywhere, 0402 resistors / capacitors, pin headers, 25xx/24xx memories...

Edit: Fix PCB
- Missing GND trace for CH340E.
- CH340E RTS/DTR not working as expected, remove them.

Attachments:

IMG_20230630_202624_1_1280x960.jpg Download (219.1 KB)

IMG_20230630_202656_1_1280x960.jpg Download (322.81 KB)

HK32F030MF4P6_GERBER_6x2_PANEL.7z Download (2.41 MB)

Untitled_Combined_Bottom.png Download (412.69 KB)

Untitled_Combined_Top.png Download (442.07 KB)

HK32F030MF4P6_GERBER_SINGLE.zip Download (100.8 KB)

HK32F030MF4P6_3D.png Download (289.98 KB)

HK32F030MF4P6_SCH.png Download (114.44 KB)
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Topic summary

The HK32F030M is a low-cost Chinese ARM Cortex M0 microcontroller priced at 15 cents, featuring a pinout similar to STM8S microcontrollers. It includes 16kB Flash, 2kB RAM, and 448B EEPROM, with SPI, I2C, USART, and ADC interfaces, but lacks DMA, PLL, and external quartz support. Users discuss the licensing of ARM technology, the competitive pricing of Chinese microcontrollers compared to Western counterparts, and the availability of programming resources. Some users have successfully tested the HK32F030M, noting differences in GPIO functionality and power consumption. The discussion also touches on the potential for Arduino compatibility and the challenges of finding adequate documentation and libraries for development.
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