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A comment on LilyGO T-HC32 board with world’s smallest Arm MCU (HC32L110B6) available for $9. Parent comment

Re:LilyGO T-HC32 board with world’s smallest Arm MCU (HC32L1... by nicoburns on Monday May 23, 2022 @03:30PM (#31483845)
The idea is that you only use the board for development, and use the 1.6mm x 1.45mm (note: mm not cm) chip on a tiny custom board in production.
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Re:LilyGO T-HC32 board with world’s smallest Arm MCU (HC32L1... by throwaway81523 on Monday May 23, 2022 @05:52PM (#31485239)
I guess that angle is interesting, but for most of us here, the board doesn't help that much in that case. The chip docs are all in Chinese, and it is a 4x4 CSP package with specific pin assignments so you have to route some very tiny PCB traces. I wonder what PCB fabs can handle that without charging a fortune. I believe there are some almost-as-small parts where you have more routing flexibility and a reasonable GCC port.
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Re:LilyGO T-HC32 board with world’s smallest Arm MCU (HC32L1... by vbezhenar on Monday May 23, 2022 @04:59PM (#31484701)
What are examples of tiny boards where MCU size would matter? Usually boards are dominated by other components anyway.
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Re:LilyGO T-HC32 board with world’s smallest Arm MCU (HC32L1... by zokier on Monday May 23, 2022 @05:20PM (#31484894)
One example are chips embedded in connectors, like for example what you see here https://www.ifixit.com/News/8448/apple-audio-adapter-teardow...

Although those are probably always some more specialized ASICs instead of some general purpose MCUs

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