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→Encoder Pins
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===What do the numbers in the boxes mean?===
===What do the numbers in the boxes mean?===
===Encoder Pins===
===Encoder Pins===
+Each zynthian encoder is connected to a minimum of 4 wires.
+1/ A wire connected to Ground or 0 Volts of the system. THis is what the other encoder wires connect to to inform the MC23017 that the pin is set logic low and should be interpreted as such.Do not worry that there is no logic high connection, this is indicated by an open circuit and by the clever use of Pull Up Resistors the open circuit connection can be interpreted as a logic High. If you have an encoder with a +V connection there are separate notes on how to address this as it is a little more complicated.
+
+So the encoder pins and the push down switch connect to 0V when operated.
+
====Encoders A-pins====
====Encoders A-pins====
+
+Encoders work by connecting and disconnecting two slightly out of phase switches as the shaft is turned. By examination of the relationship between when the switches open an close one can interpret the amount of turning that has been done and also the direction it was turned. All the information required to adjust a zynthian parameter.
This is the one of the Two pins of the encoder. If the encoder appears to go the wrong way you can either
This is the one of the Two pins of the encoder. If the encoder appears to go the wrong way you can either
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See Encoders A-pins
See Encoders A-pins
−====Encoders Switches Pins ====
+====Encoders Switches Pins ====
===MCP23017 pins===
===MCP23017 pins===