Uploaded December 2024 | Updated September 2026, 9 hours ago

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In this video, I show you the low-power modes of the CH32V003-series microcontroller using a CH32V003J4M6 chip. The device can be put into sleep mode (~600 uA) or standby mode (~10 uA). Depending on what other devices are operated and how often the microcontroller must perform a task, the standby mode can be sustained for more than a year, even with a small CR2032 battery.

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Affiliate links:
CH32V003J4M6: https://s.click.aliexpress.com/e/_c4CwBse5
WCH-LinkE programmer: https://s.click.aliexpress.com/e/_DdUKRAz
Breadboard: https://s.click.aliexpress.com/e/_DloYYXN
Multimeter: https://s.click.aliexpress.com/e/_AfAhM2

Article: https://curiousscientist.tech/blog/ch32v003j4m6-low-power-modes
Resources: wch-ic.com/products/CH32V003.html
Parts and tools: https://curiousscientist.tech/tools