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A comment on Introducing the Nano ESP32. Parent comment
You use Arduino for their super good support and documentation while you're building your device. It's only for prototypes.
You can buy $4 boards off Aliexpress, but then you have to deal with poor documentation, clone boards, buggy code, etc.
I lost 4 days trying to make an SPI screen just "work", until I realized my clone board was outputting the signals offset due to a hardware bug.
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You use Arduino for their super good support and documentation while you're building your device. It's only for prototypes.
You can buy $4 boards off Aliexpress, but then you have to deal with poor documentation, clone boards, buggy code, etc.
I lost 4 days trying to make an SPI screen just "work", until I realized my clone board was outputting the signals offset due to a hardware bug.