I find myself thinking more carefully about how data is actually represented in a computer
Such a shame then that the Arduino helpers have managed to conceal that.
On the 8-bit AVR architecture, you can of course just assign your counter variable directly to the memory-mapped pin output register and don't have to deal with them on a per-bit basis. You can even omit the counter altogether and just use the pin output register.
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I find myself thinking more carefully about how data is actually represented in a computer
Such a shame then that the Arduino helpers have managed to conceal that.
On the 8-bit AVR architecture, you can of course just assign your counter variable directly to the memory-mapped pin output register and don't have to deal with them on a per-bit basis. You can even omit the counter altogether and just use the pin output register.
Why is that a shame? If that were the case then some poor 9 year old wouldn't be able to get the blinken lights to work without help from the parents.