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→How do I connect things at the Raspberry Pi End?
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===How do I connect things at the Raspberry Pi End?===
−The I2C connection requires only two wires 2nd the Raspberry Pi is specifically designed to accept an I2C connection on Pins 3 (SDA Data) & Pin 5 (SCL Clock).
−Also Two Interupt lines are also required and these can be any pin address in the webconf drop down. It defaults to
−{| class="wikitable"
−|+ Raspberry Pi GPIO Pins
−|-
−! Odd Pins !! Function !! Function !! Even Pins
−|-
−| Pin 1 || <span style="color:#FFFFFF; background:#aa5500">3v3 Power</span> || <span style="color:#FFFFFF; background:#ff0000">5v0 Power</span> || Pin 2
−|-
−| Pin 3 || <span style="color:#FFFFFF; background:#aa9900">I2C SDA Data Pin</span> || <span style="color:#FFFFFF; background:#ff0000">5v0 Power</span> || Pin 4
−|-
−| Pin 5 || <span style="color:#FFFFFF; background:#aa9900">I2C SCL Clock Pin</span> || <span style="color:#FFFFFF; background:#000000">0v Ground</span> || Pin 6
−|-
−| Pin 7 || - || - || Pin 8
−|-
−| Pin 9 || <span style="color:#FFFFFF; background:#000000">0v Ground</span> || - || Pin 10
−|-
−| Pin 11 || - || - || Pin 12
−|-
−| Pin 13 || - || <span style="color:#FFFFFF; background:#000000">0v Ground</span> || Pin 14
−|-
−| Pin 15 || - || - || Pin 16
−|-
−| Pin 17 || <span style="color:#FFFFFF; background:#aa5500">3v3 Power</span> || - || Pin 18
−|-
−| Pin 19 || - || <span style="color:#FFFFFF; background:#000000">0v Ground</span> || Pin 20
−|-
−| Pin 21 || - || - || Pin 22
−|-
−| Pin 23 || - || - || Pin 24
−|-
−| Pin 25 || <span style="color:#FFFFFF; background:#000000">0v Ground</span> || - || Pin 26
−|-
−| Pin 27 || - || - || Pin 28
−|-
−| Pin 29 || - || <span style="color:#FFFFFF; background:#000000">0v Ground</span> || Pin 30
−|-
−| Pin 31 || - || - || Pin 32
−|-
−| Pin 33 || - || <span style="color:#FFFFFF; background:#000000">0v Ground</span> || Pin 34
−|-
−| Pin 35 || - || <span style="color:#FFFFFF; background:#aa9900">MCP23017 INT-A Pin</span> || Pin 36
−|-
−| Pin 37 || <span style="color:#FFFFFF; background:#aa9900">MCP23017 INT-B Pin</span> || -|| Pin 38
−|-
−| Pin39 || <span style="color:#FFFFFF; background:#000000">0v Ground</span> || - || Pin 40
−|}
−
|-
|-
|}
|}
−===Encoder Pins===
===Encoder Pins===
Each zynthian encoder is connected to a minimum of 4 wires.
Each zynthian encoder is connected to a minimum of 4 wires.