OpenSprinkler Pi (OSBo) v1.1 User Manual Contents
Contents
1. Introduction OpenSprinkler Beagle OSBo is an open source sprinkler irrigation extension board for the BeagleBone Black BBB It s an easy and low cost solution to transform your BeagleBone Black into a capable sprinkler controller with up to 48 independent stations for lawn and plant watering farm irrigation and other similar applications The OSBo v1 1 kit includes the enclosure with a clear acrylic window assembled and tested OSBo circuit board terminal blocks and screws The built in components include 24V AC to 5V DC switching regulator solenoid driver rain sensor terminal DS1307 RTC and battery fuse mini relay per station transient voltage protector The image on the right below shows the final assembled product To get started you will also need the following which are NOT included in the kit and have to be purchased separately a BeagleBone Black BBB a nano size USB WiFi dongle or alternatively a RJ45 Ethernet cable if not using WiFi a 2GB or above microSD card or alternatively a low profile SD card 24V AC sprinkler transformer output voltage 22V AC 30V AC note that it s AC not DC 24V AC sprinkler valves note that it s 24V AC valve not DC or latching solenoid valve Hardware Interface The left image marks the connectors and BBB mapped out pins The right image below marks the locations of the USB WiFi dongle SD card and wired Ethernet cable if not using WiFi on the BBB2. Relay Pins 7 Bacocogscececcoecoceccce wecer BBB pinout CO NC NO So Nano size USB WiFi a gemtttre dii apa aoezage BBB pinout a ae ee sisii ce oe i Ee Dongle ce P8 7 vd s oie z ETTE S o ela vate 8 r E FEA uSD card 2 0 0 0 0 10 0 aia antag Wired cF Slot 24V AC Wa zo o Ethernet ag CM Se teers tae WM oi Jack Zone Expansion Connector COM Stations 1 8 Rain sensor SF CCCCOLLY common wire Terminal Hardware Setup 1 Test Power Supply Insert the sprinkler transformer wires into the orange screw terminal then plug it in to the matching terminal on OSBo The green LED should light up indicating that power is on Warning if the LED doesn t light up or if anything smokes please unplug the power immediately Check if there is any visible damage If you can t figure out the problem send an email to support rayshobby net or post a message on the Forum http rayshobby net phpBB3 Sye uye aban 4 Xe poe me a Mai i Power indicator 2 Attach BBB to OSBo OSBo has two support pillars that match the screw holes on BBB First remove the top screws from the support pillars then plug BBB into OSBo through the 2x10 pin headers with Ethernet jack facing the left and USB connector facing the right Double check the orientation and make sure all pins are aligned The two screw holes should also match the support pillars Insert BBB all the way to the end The pow
3. WiFi SSID and password then you can use the wireless connection The system will attempt to register host name arm on your network So open a browser and type in http arm and see if you can get to the one page instruction If not go to your router s configuration page find the IP address assigned to your BBB say http 192 168 x x Next open a browser and type in the IP address You should see a welcome page with further instructions If you see this page congratulations the image is successfully burned onto your SD card e To ssh or log in to BBB the default user name is ubuntu and password temppwd 2 OpenSprinkler Interval Program by Dan Kimberling The OpenSprinkler interval_program written in Python by Dan Kimberling is the default software set to run on start up This software provides basic and advanced features such as interval based programming graphical preview of program settings manual operation custom station names station delay per station control of master valve rain delay rain sensor watering percentage The software is available on port 8080 Open a browser and type in http ospi 8080 or if that doesn t work http 192 168 x x 8080 You should see the web interface of this program The user manual of the interval_ program can be found on http www opensprinkler com Changing settings in the interval_program requires a password The initial password is opendoor To update the program go
4. OpenSprinkler Pi OSBo v1 1 User Manual Updated August 6 2014 Contents Ith OCMUINCTIO IN PET E A A A A TA A A E A A A 2 FAWN 0 EN ACO E E E A A EAA AE E A S 3 BEENIE AE lt 1 50 o MEANE E E nee E A E ET ee ee 3 DS OSE POW CF ODD e E E E E AE EA tacegsacncteensousees 3 2 Atam DB TOO BO seras nE E S 3 SR LSE BAe 1S PAPEI E E A AE E EA E A OT T E E E A ere ere 4 AN EDC ORNE CUON enr E E E E E E 4 WE oNN VE a A T 5 ONO E ONBO O e E E NEO 5 KRI E O e E E dette seseonuasecossceee eae 6 Oe Mini Relay Advanced TOPIC csetesnnsosesetsrcumecenaancieascuscmnnastsdatescsdesunesneceiansdmteoaasindatcedsdanincesesonucdueenenaaeeeets 6 SONWANE E ecisae seucaisaeaecesnvpenceaceceedaese setae 7 1 Jo 510 Pre conigured SD MIE sinesme ee Oe eee eee 7 2 OpenSprinkler Interval Program by Dan Kimber sling ccccccccesssecceeeeessecceceeeeeecceeeeeeeeceeeeeeeeeeeeeeas 7 3 OpenSprinkler Mobile App by Samer Albahra cccccccccsssseccceceessecceeeeessecceeeeeeeeesesseeeeeeseeeaeeeeeeeeeas 8 rl Ge eyed a eh cs eel ad oa 01 4 N eee ee EAE eee ee 8 TEC HIG I Deta eree evel etna taeveuecstion san edaveusatmorstiasduovyeaue Son E E E E 9 PBE PITU GS States cee oper ease pec ester senses nae ees seis ec Pagoda seo oes stce a eeeeceonsnse sone eeeeuesance saeecatedeoes 9 SPECION ra eno oe ee 10 Terms and CHIE LONG serrer cseicn es rere yrerpse salves 00s ETET nse eames 10 Ope Source LKE oreen EE E tis atnaddeDetursioeainnaaiiece E 10
5. T BI SYS_RESETN Shift Register DATA Shift Register CLOCK Rain Sensor Shift Register LATCH Shift Register NOE Relay gt ae I2C SCL I2C SDA 21 22 GPIO 49 23 24 GPIO_15 25 26 GPIO 125 27 28 ECAPPWM2 29 30 EHRPWMOA 31 BA vDD_ADc 24 AIN6 85 56 AINS EAE AINO P59 M30 AINI 41 42 DGND 43 44 DGND DGND 45 46 DGND P8 Pinouts P9 Pinouts aloha OOO DOOCCOCOCOCOOCOOOOOO CE ROCCO COCCO CCC COCOON OpenSprinkler Beagle 0SBo v1 1 beagle opensprinkler com Specifications Terms and Conditions Input Voltage DC Output Current Number of Zones AC Output Current Over voltage Protection Over current Protection On board Relay Size Weight 22V AC to 30V AC 500mA 5V to power BBB 8 on the OSBo expandable by linking zone expansion boards 800mA continues 24V AC per zone station 8A impulse inrush 48V bi directional TVS on each zone AC input and rain sensor terminal 2A on AC input 1A on 5V DC 3A 250V AC or 30V DC Though rated at 250V AC it s not recommended for power line voltage due to PCB traces and pinout size 135mm x 100mm x 32mm 5 3 x 4 x 1 26 150g 5 302 w o RPi OpenSprinkler Beagle OSBo is an open source project The hardware design and software code are made publicly available under the Creative Commons Attribution ShareAlike CC BY SA 3 0 license The product is open source for educational purpose
6. and to promote innovations The hardware and software are provided as is We Rayshobby LLC are not responsible for any damage or accident that may occur due to hardware or software error or during the assembly use and modification of OSPi Open Source Links OSBo Github Repository OSBo homepage
7. er jack and Ethernet connector should go through the cutouts on the PCB Finally tighten the two screws 3 microSD card A microSD card of 2GB or above is required to set up OSBo software Instructions on how to burn pre configured software onto the microSD card can be found later in the Software Setup section Once the image is burned onto the card simply insert it to the microSD card slot on the BBB FS op Geeet sae e EEEE Goan psie nie PE a i 4 Web Connection OSBo v1 1 fits a nano size USB WiFi dongle zaara Insert the dongle into the USB port on BBB HHH FEFE get ra gt oa ms Spinn ND AS PPE CGULEE Ap 3 E ERE A PPPE YEKI eeeevenaeneeeese LIAS If you prefer wired Ethernet connection you can insert a standard RJ45 Ethernet cable into BBB and the cable can pass through the opening labled USB on the enclosure 5 Wiring Sprinkler Valves To connect a sprinkler valve insert one wire to the COM common terminal and the other wire to any of the station terminals 1 8 The COM terminal has two ports they are internally connected so either port is fine To connect multiple valves one wire from each valve should come together and go to the COM terminal and the other wire from each valve goes to an individual station terminal See the diagram below COM 123 45 67 8 6 Zone Expansion Board To connect a zone expansion board use the exten
8. low voltage operation lt 40V and have not been tested on power line 120V 240V devices Use your own discretion if you plan to use the relay for power line devices Software Setup 1 OSBo Pre configured SD Image A pre configured SD card image is provided for you to quickly set up software for OSBo e The latest version OSBo SD Card Image 2 with Interval Program v2 update 08 06 14 Oo SHA1SUM ee4cO 8ab5aldbbfe36cb5609838b31d2fe0c 4642 o MDSSUM 7143d32e6542699df1213d7c854e9364 The process to burn the image onto an SD card is the same as burning any BBB image Below is a brief summary Detailed instructions can be found on BeagleBone Black s official website e Decompress the image file to your computer e Insert an SD card 2GB or above to your computer Back up any important file on the SD card e When using microSD card you need a microSD to full size SD adapter or USB adapter e On Windows use the Win32Disklmager software e On Mac or Linux use the dd command in a terminal For example sudo dd bs 1M if image_file of dev partition_to_burn_to e IMPORTANT make sure you have typed in the correct partition name if you accidentally typed in the wrong partition name you may end up wiping out your hard disk Once the SD card is ready pop it into your BBB As WiFi is not configured yet you should first connect BBB directly to your router with a wired Ethernet cable or connect it to a screen and keyboard set the
9. sion cable you received to link the OSBo s OUT port to the expansion board s IN port The connector on the cable is polarized with a bump on the top so there is only one way to plug it If you have multiple expansion boards you can daisy chain them in the same way by following the OUT gt IN links When using zone expansion boards the sprinkler valves are wired the same way as before one wire from each valve should come together and go to the COM terminal on the OSBo and the other wire from each valve goes to an individual station terminal Main Controller Zone Expansion Board Extension Cable COM 123 45 67 8 1234567 8 7 Rain Sensor If you have a rain sensor you can connect it to OSBo v1 1 via the rain sensor terminal The rain sensor has two wires and is essentially a rain activated switch The OSBo software can decide what to do when rain is detected such as turn off stations or ignore rain 8 Mini Relay Advanced Topic OSBo v1 1 has an on board 250VAC 3A mini relay which can be used for general purpose switching such as opening garage doors switching landscape lighting The three relay pins have been mapped out on the circuit board CO change over NO normally open NC normally closed For example connect the two wires from the garage door opener to the CO and NO pins when the relay is activated it will toggle the garage door Warning the PCB traces and pinouts for the relay are designed for
10. to folder home ubuntu OSPi and run command git pull The interval_ program is under active development with new features and plugins If you want to find out more or contribute to the development please check the following resources Note that the program was initially written for Raspberry Pi and then made compatible with BeagleBone Black as well so many items are still under the topic of OpenSprinkler Pi OSPi e OSPi interval program Github repository e OSPi MediaWiki page e Rayshobby Forum OSPi development topics f you need to downgrade to Interval Program v1 8 3 go to folder home ubuntu OSPi and run the following command git checkout 0cc07da211000acaf2e6f50a6630fbcd0093c844 The restart This will downgrade the program to version of 1 8 3 3 OpenSprinkler Mobile App by Samer Albahra The OpenSprinkler Mobile App written by Samer Albahra supports the interval_ program The mobile app provides a stylish mobile front end to easily change station and program settings as well as check station and program status The app is available on all major mobile platforms e g iOS Android Windows Mobile BlackBerry Amazon Kindle Search opensprinkler in the app store then download and install the app The app requires an up to date OpenSprinkler interval_ program Check subsection 2 above for update instructions 4 Google Calendar Program The Google Calendar program written in Python makes use of a public Google calendar
11. to schedule watering events It periodically polls the calendar to check stations that are scheduled to be on at the current time Each program is simply a calendar event with the title indicating the station name s Google calendar makes it easy to schedule complex recurring events and it s accessible on most devices This program is installed in the home ubuntu demos folder Please check the README txt therein The home ubuntu demo folder includes a couple of addition demo programs for testing purposes and they provide start up examples to show how to control sprinkler valves in Python and C Technical Details The OSBo v1 1 circuit design consists mainly of a 24V AC to 5V DC switching converter based on LM2596S 5 0 shift register 74HC595D solenoid drivers based on BT1308W triac RTC with battery DS1307 relay HK4100F 5 0V BBB Pin Uses OSBo v1 1 uses the following GPIO pins on the BBB s P9 shaded in purple The other pins on P9 as well as all pins on P8 are free to use The power pins as well as SDA SCL pins can be shared with other devices All GPIO pins are mapped out in the pinout area P8 46 pins at the right edge of the circuit board and P9 46 pins at the top edge of the circuit board The layout of the mapped out pins match the GPIO pins The pins used by OSBo are marked by a white outline P9 GND GND 3 3V from BBB 3 3V from BBB 5V DC Power to BBB 5V DC Power to BBB sys_SvV BR sys_sv PWR_BU
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