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@ -10,7 +10,7 @@ There is no input function. It can be easily added, but I didn't need it. |
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The device appears as a USB-serial ttyACMx. Write characters to it. Everything works in character mode. |
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There's no harm in sending CRLF, these are discarded with no reply. |
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- Uppercase letters turn GPIOs on, their lowercase counterparts turn them on. |
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- Uppercase letters turn GPIOs on, their lowercase counterparts turn them off. |
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- Valid commands return the same character back. Unknown commands return "?". |
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- "0" turns all *off*, "1" turns all *on*. This is handy if you need just one signal, or want to shut everything down. |
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