Raspberry PI3-B+ GPIO interface board 2.4

Difference between revisions from 2019/11/13 20:31 and 2019/11/13 20:31.
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* 24V Power supply.
* 24 Relay + LED, [controlled|Web relays] from Rapsberry PI2/B+ [GPIO|Web relay]
* A/D converter with 4 inputs.
* I2C output for connecting the temperature sensor.
* Conector for power and configure four Arduino rotator interface.
* The PCB size 5x25 cm

* '''[rev 2.4|https://remoteqth.com/hw/rot-interface-gpio24.pdf]'''
** [Introduction|https://remoteqth.com/hw/intro-rpi-gpio-24.pdf]
** [BOM|https://www.tme.eu/cz/parking/295472296de978bb5472fe61b8e81cea0d78b758.html]
** [iBOM|https://remoteqth.com/hw/ibom-rpi-gpio-2.4.html][interactive BOM|https://remoteqth.com/hw/ibom-rpi-gpio-2.4.html]
** [KiCad .zip|https://remoteqth.com/hw/rpi-gpio-2.4.zip]
*[rev 2.3|https://remoteqth.com/hw/rot-interface-gpio23.pdf]
*[rev 2.2|https://remoteqth.com/hw/rot-interface-gpio22.svg]

!Quik start guide
# Server box opens up over the upper part, lifting in the rear, and sliding backwards. Screwing not needed.
# Before connect power '''remove JP9 jumper''' ([Introduction|https://remoteqth.com/hw/intro-rpi-gpio-24.pdf]) from gpio board - switching the 5V power supply for RPI
# Power may be from '''two sources'''. If you use only one source, connect power to '''UPS input''' - this is monitoring internal A/D converter and LED on front panel.
## 24V DC from '''power supply'''
## 24V UPS from '''backup battery''' circuit
# If power stable connected, '''connect Ethernet cable''' with DHCP on router enable to RPI '''and short JP9 jumper''' - now running and boot RPI server
# Web interface IP addres will tell your dhcp server or any network scan, for example [Fing|https://play.google.com/store/apps/details?id=com.overlook.android.fing&feature=search_result#?t=W251bGwsMSwxLDEsImNvbS5vdmVybG9vay5hbmRyb2lkLmZpbmciXQ..]
# '''Default login:''' ''yourcall,'' '''password:''' ''1234''
# Front panel '''power switch''' paralel connected to first relay on gpio board - rotators may be power ON localy or remotely via web interface
# Front panel LED signals power in UPS input
# '''Rotator modules''' work independently to RPI server - '''how configure [Single rotator interface|Rotator module version 3.3]'''
# Power for each rotator connect independently to rear panel terminal blocks.
# '''Web features''' configure via [RemoteQTH-server]
# Before '''Power OFF''' need shutdown server from web interface.
''Have Fun!''

* '''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

* '''J2''' - Power switch and LED
* '''J11''' - two free A/D inputs
* '''I2C''' - set address A/D converter
* '''JP1-JP8''' - preset power each rotator interface separately
* '''J4''' - I2C bus
* '''J3''' - switched +5V for USB hub
* '''Green 1-4''' - measuring points input four A/D converters

* '''R27-R30''' - voltage divider for A/D converter

!RemoteQTH server presets
typycaly set [A/D converter|Sensors] - It depends on the settings of the input voltage divider (Trimmer R27-R30)

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