Raspberry PI B+ GPIO interface board 2.1

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[http://remoteqth.com/img/wiki-rotator-server-gpio21.jpg] [http://remoteqth.com/img/wiki-rotator-server-gpio2-brd-l.png] [Larger versions|http://remoteqth.com/img/wiki-rotator-server-gpio2-brd.png] !!Connectors * '''J1''' +24V DC Power * '''J6 J15''' - four rotator interface AC od DC Power * '''J5''' - RJ9 connector for other I2C temp sensors * '''P16''' - where the relay switch voltage on outs, here is voltage IN * '''P1-P12''' - GPIO Relay outputs * '''J7-J10''' - connect four rotator interface !!Jumpers * '''J2''' - Power switch and LED * '''J11''' - two free A/D inputs * '''P4''' - preset relay outputs - ON and OFF separately * '''I2C''' - set address A/D converter * '''JP1-JP8''' - preset power each rotator interface separately * '''J4''' - I2C bus * '''J3''' - switched +5V for USB hub !!Trimmer * '''R27-R30''' - voltage divider for A/D cinverter
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