It wil run @ 1 MHz if you haven't changed it (it is preprogrammed from the factory)
If you want to run 8MHz:
Select Board -> Attiny85@8MHZ
select Programmer -> Arduino as ISP
Select ->Burn bootloader, this will set the fuses but not burn any bootloader
change internal clock of attiny85我一直以為,時脈的頻率會一起在上傳草稿碼的時候一起上傳,結果......
花了我整天的時間debug
正確做法:
工具➡️Clock➡️XX MHz(內部時脈/外接時脈)
工具➡️燒錄bootloader
這兩個動作做完後,即可上傳草稿碼
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