OpenSprinkler owners can use this solution to send their PWS weather observations onto a local Weather Service server. For more information on the "WeeWX Solution" click here. 4 ) Solutions for specific PWS (provided by OpenSprinkler Forum members) Davis Vantage: a solution for this PWS has been kindly provided by @rmloeb hereAug 25, 2013 · OpenSprinkler Pi is an extension board for Raspberry Pi (RPi) (all versions of RPi). It allows RPi to directly access and control sprinkler valves. NOTE: OSPi no longer comes with enclosure. Instead, the design of a 3D printable enclosure is provided, you can use it to print the enclosure yourself, or order it online, such as from jlcpcb.com. OpenSprinkler is designed to be easy to install and use, and is compatible with a wide range of sprinkler valve systems. Ray: tell me more about opensprinkler. ChatGPT: OpenSprinkler is a sprinkler controller that allows users to automate their irrigation systems and customize watering schedules through a web interface or a smartphone app. A quick note that our Black Friday / Cyber Monday sales are on now: all OpenSprinkler products are shown in discounted prices right now, and the deal only lasts till Monday Nov 28. This is the only time of the year that we offer discounted pricing, so if you are interested in buying OpenSprinkler, grasp this chance and don’t let it slip away ...Feb 22, 2020 · Open Sprinkler is a free, open source, self hosted, browser based controller for your sprinkler system, and it can run through a Raspberry Pi. It has a simp... If you have already installed opensprinkler firmware onto the Pi then you can select a station (click the associated cog). In the settings popup, click the Advanced tab and select “GPIO” as the station type. You can now select the gpio pin that you want to toggle when this station needs to water. Make sure you then wire up that gpio pin to ...Sep 30, 2014 · Announcing OpenSprinkler Firmware 2.1.0 (Major Upgrade) →. We’ve just released a new OpenSprinkler Firmware Update program, with a video tutorial to walk you through the steps of how to upgrade your firmware. Hopefully this will make it easy for users to transition to the upcoming Firmware 2.1.0, which has a number of significant new ... For instance, renaming Station 6 would rename 7 and 8 as well, but not 1-5. Tried the “Reset All Station Data” option and it just showed “reset” for most stations after it was done, but still the same issue with trying to rename them after. Tried restoring from a backup file I had and still had the same issues. · Keymaster. 1. yes, it should work with OpenSprinkler. The output of this soil clik sensor is a relay which is a dry contact type. 2. no, this soil sensor is not a dry contact type, it requires an additional microcontroller to ‘interpret’ the result of the soil moisture value. It cannot be used directly with OpenSprinkler.The first thing to check is at the homepage, swipe left to right (or click the upper-left corner icon) to open the left-side menu, then ‘System Diagnostics’. Look at two time stamps: the Last Weather Call and Last Successful Weather Call. If the Last Successful Weather Call time stamp lags behind the first one, or is simply not available ...I am seeing this in the homeassistant log constantly not sure what is up. My open-sprinkler device is connected via Ethernet cable, I never have connectivity issues while hitting OS web gui. 2022-08-26 06:21:22.143 INFO (MainThread) [cus... Announcing OpenSprinkler Firmware 2.2.0(1) December 30, 2022 Announcing OpenGarage Firmware 1.2.0 October 7, 2022 Learning Electronics — I/O expander options October 10, 2021 1) the clock on the controller’s display is frozen at a time earlier in the day. 2) none of the 3 buttons on the controller do anything. 3) the Ethernet module’s internal red LED is still on, and the 2 LEDs on the RJ45 jack seem to reflect normal network activity. 4) the controller still responds to pings. 5) if the controller was in the ...Announcing OpenSprinkler Firmware 2.2.0(1) December 30, 2022 Announcing OpenGarage Firmware 1.2.0 October 7, 2022 Learning Electronics — I/O expander options October 10, 2021Apr 28, 2014 · OpenSprinkler (Arduino-based) This is the story of how learning Arduino inspired me to invent the OpenSprinkler — an open-source, web-based sprinkler controller. I’ve had a passion for making electronic circuits since I was a kid, spending hours looking at schematics and building simple circuits like a single-transistor radio, an electronic cricket, …Hi, There is option to connect 2 sensors for OSPi: 1. Rain Sensor (Then when it rainy day, and the water is open, it will close automate) 2. Land Sensor (That in computer I see when the land is dry). Regards. June 17, 2014 at 3:06 pm #27223.This video demonstrates the main features of OpenSprinkler Firmware 2.2.0. The content follows firmware 2.2.0 user manual, available at https://support.opens...Because very few users take advantage of the relay, and it’s kind of expensive, we’ve made the decision to remove the relay from all OpenSprinkler hardware (including OS, OSPi, and OSBo). Also, due to a recent supply chain problem of ATmega644, it turns out that buying ATmega644 ends up costing more than ATmega1284, that’s why …OpenSprinkler Bee. An open-source controller for battery-operated / latching sprinkler valves. The standalone version is powered by AA batteries and controlled remotely via RF. The shield version plugs directly into a standard Arduino . ESPToy. An open-source gadget for the ESP8266 WiFi module. Built-in ATmega644, USB, color LED, thermistor ...About. A mobile interface for the OpenSprinkler irrigation device. Designed to allow manual control, program management (preview, add, edit, and delete), initiation of a run-once program, viewing graphical and tabulated representations of log data, viewing device status, adjusting rain delay, and changing of OpenSprinkler settings.Jun 12, 2020 · The weather algorithm is just an algorithm, it’s not human intelligence, it can’t read your mind. That’s why you are given parameters which you can tweak to fit your own specific need. You can’t expect it to work perfectly with the default settings. I think your expectation is too high.Software repository for OpenSprinkler, an open-source web-based sprinkler controller. - OpenSprinklerFor All of OpenSprinkler 2.3, 3.x and OpenSprinkler Pi (and Linux-based systems) Support for Sequential Groups: this generalizes and replaces the previous per-zone sequential attribute. Zones in the same sequential group are automatically serialized, while zones in different groups can run simultaneously.Jan 6, 2021 · Hello, I have created a HW/SW variant from OpenSprinkler based on the ESP32-WROOM module and including a Lora SX1262 module (long range). This variant allows a device to be configured as master (remote) or slave (station). Any action in the remote will be transmitted to the station over the MirrorLink lora protocol.The Android app does work if I point it directly at the OpenSprinkler controller. I’ve used tcpdump and wireshark to compare the traffic going to the controller when I try to connect the app to the controller, and the problem appears to be that the app is adding an additional “/” to the GET /js?… request when going through the proxy. ...ESPToy v2. $ 12.99 9.99. ESPToy is a WiFi development board for ESP8266. Version 2.0 has on-board Neopixel color LED, mini buzzer, button, light sensor, LiPo battery jack and charging chip. It has built-in CH340 USB-serial and auto-reset circuit. It’s pre-flashed with a demo software written in Arduino with ESP8266 core.Participant. I agree with Jim. Most of the people using a RPi are likely to tinker with their installation. I – for my part – put a 128×64 SSD1306 OLED display (standard I2C) between the Pi and the acrylic …Aug 6, 2023 · Welcome to the OpenSprinkler application. This app only works with the OpenSprinkler controller which must be installed and setup on your home network. Purchase OpenSprinkler. OpenSprinkler.com Login. Add Controller.Two months ago, I wrote a blog post about the preview of OpenSprinkler Bee, which is an open-source arduino-based controller for battery-operated sprinkler valves.While that’s still in the development stage, today I am glad to announce that an Arduino shield version of OpenSprinkler Bee is completed and immediately available … clicking button B1. Also, the OpenSprinkler mobile app can automatically scan your local network to discover OpenSprinkler’s IP address. For example, your OpenSprinkler’s IP address might be 192.168.1.22. Next, either use the mobile app, or open a browser and type in the IP address (e.g. 192.168.1.22). Announcing OpenSprinkler Firmware 2.2.0(1) December 30, 2022 Announcing OpenGarage Firmware 1.2.0 October 7, 2022 Learning Electronics — I/O expander options October 10, 2021PCA9555 and PCA9535 both have 16 I/O pins, and both use Totem-poll output, so they can both sink and source a large amount of current. They are used in the current OpenSprinkler 3.2 controller and zone expanders. The only difference between the two is that PCA9555 has built-in pull-up resistor while PCA9535 does not.March 16, 2015 at 9:41 pm #36045. Ray. Keymaster. The ‘parallel stations’ are mainly intended for non-sprinkler stations — now that OpenSprinkler supports radio frequency (RF) stations (such as remote power sockets), you can use it to switch landscape lights, or other general-purpose powerline devices with OpenSprinkler. · Keymaster. 1. yes, it should work with OpenSprinkler. The output of this soil clik sensor is a relay which is a dry contact type. 2. no, this soil sensor is not a dry contact type, it requires an additional microcontroller to ‘interpret’ the result of the soil moisture value. It cannot be used directly with OpenSprinkler.This video demonstrates the main features of OpenSprinkler Firmware 2.2.0. The content follows firmware 2.2.0 user manual, available at https://support.opens...Jul 25, 2018 · Weather adjustment methods rely on online weather data, those are independent of your rain sensor, which is your local sensor that does NOT depend on online weather data. If you want to only use rain sensor, please select ‘Manual’ as adjustment method, and configure your sensor as Rain sensor and use that. August 8, 2018 at 12:25 pm #51635. OpenSprinkler › Forums › OpenSprinkler Unified Firmware › OpenSprinkler 3.0 firmware update This topic has 1 reply, 2 voices, and was last updated 6 years, 7 months ago by Ray . Viewing 2 posts - 1 through 2 (of 2 total)Keymaster. OpenLabs has shut down for several months and came back to business. Right now the only way for you to get OpenSprinkler is to buy directly from us (we do ship to Australia). We will be contacting OpenLabs to find out what’s their future plan. February 7, 2018 at 6:33 pm #48848. OpenSprinkler is an open-source Internet web-based sprinkler timer / controller built upon the Arduino platform. Features of the app include: * Easy to understand device status. * Quick program modification. * Launch ad-hoc or defined programs instantly. * Manual mode for convenient testing. * Multi-device support. OpenSprinkler Pi (OSPi) is an open-source sprinkler / irrigation extension board for Raspberry Pi (RPi). It is based on the design of OpenSprinkler, but its ‘brain’ is an RPi instead of an AVR microcontroller. The idea of OSPi first came when I noticed that many users were setting up RPi to work with OpenSprinkler.The application allows you to automatically detect and control your OpenSprinkler irrigation system (s). OpenSprinkler is an open-source Internet web-based sprinkler timer / …Mar 24, 2021 · Unscrew each of them first. Insert each wire and tighten them down with a small screwdriver. The red zone cables should be inserted into the corresponding zones (Zone 1 on the old system goes into #1 on OpenSprinkler). The black P/MV cable is your pump/master valve. Plug this into an available zone (either 7 or 8). Keymaster. Announcing OpenSprinkler Unified Firmware 2.1.9. First of all, apologies for taking so long to release this firmware. Several technical issues occurred during the last couple of weeks that slowed down the progress. Good thing is that they have been ironed out so today we are ready to release the new firmware 2.1.9.This video demonstrates the main features of OpenSprinkler Firmware 2.2.0. The content follows firmware 2.2.0 user manual, available at https://support.opens... The opensprinkler then always comes up with an IP adderess of 198.162.0.100, however this does not appear in the list of connected devices on my modem, and if i put that IP into my computer or phone, it will not connect. Any ideas if this is a modem issue or setting with the Netgear modem, or something else? Thanks. So in case you are looking for a 24V AC relay to work with OpenSprinkler in order to switch high-voltage devices, this is an inexpensive (. 2. Schrack RT314524: This is a very small 24V AC relay that you can buy from Mouser or Digikey. It has a contact rating of 16A @ 250VAC, which is also plenty for common applications. Announcing OpenSprinkler Firmware 2.2.0(1) December 30, 2022 Announcing OpenGarage Firmware 1.2.0 October 7, 2022 Learning Electronics — I/O expander options October 10, 2021Aug 25, 2013 · OpenSprinkler Pi is an extension board for Raspberry Pi (RPi) (all versions of RPi). It allows RPi to directly access and control sprinkler valves. NOTE: OSPi no longer comes with enclosure. Instead, the design of a 3D printable enclosure is provided, you can use it to print the enclosure yourself, or order it online, such as from jlcpcb.com. Jan 7, 2017 · OpenSprinkler Bee (OSBee) is an open-source, WiFi-enabled sprinkler controller for latching solenoids. It is suitable for garden and lawn watering, flower and plant irrigation, hydroponics, and other types of watering projects. It comes with built-in WiFi, OLED display, 3D-printed enclosure, and can switch up to 3 zones independently. It is …Keymaster. OpenLabs has shut down for several months and came back to business. Right now the only way for you to get OpenSprinkler is to buy directly from us (we do ship to Australia). We will be contacting OpenLabs to find out what’s their future plan. February 7, 2018 at 6:33 pm #48848.This is an ESP32 port of OpenSprinkler 2.1.9 firmware. As ESP32 has many GPIO pins, the main stations (8) are handled by ESP32 instead of any PCF8574's. All buttons are managed by the main ESP32 board too. Firmware is tested and works as AC version (DC and LA require a dedicated HW eg. voltage buster). As I do not have an ethernet board, …OpenSprinkler Bee. An open-source controller for battery-operated / latching sprinkler valves. The standalone version is powered by AA batteries and controlled remotely via RF. The shield version plugs directly into a standard Arduino . ESPToy. An open-source gadget for the ESP8266 WiFi module. Built-in ATmega644, USB, color LED, thermistor ...I think it would be extremely powerful to get alert via email for example when the flow sensor reads flow when no valves are on. In addition, I think it would be nice to get alerts when there is a 0 flow reading when the valves are on meaning the source water is not flowing (i.e. was mistakenly turned off). November 9, 2015 at 12:33 am #40714.Thanks in advance. Cheers. Tom. March 20, 2016 at 10:18 pm #41807. Ray. Keymaster. Yes, you will need a pump start relay (because a station on OpenSprinkler DC can only drive a load up to 1 amp max, if your pump requires 5 amp, you will need a relay). March 20, 2016 at 11:09 pm #41818. tom.farmer0.Regarding concurrent vs sequential running modes, currently the only option is to globally switch between the two (i.e. either all stations run sequentially, or all stations are allowed to run concurrently). There is currently no support for subsets of sequential groups. July 5, 2013 at 7:43 pm #24613. djMax.The extra GPIOs do help with enabling more sensors especially analog sensors. ESP8266 also has versions with external antenna plug (ESP-07S). We haven’t moved to use ESP32 mainly because it takes time to develop, test, and get familiar with a new microcontroller. With ESP8266 we are familiar with it, know the quirks.Feb 22, 2020 · Open Sprinkler is a free, open source, self hosted, browser based controller for your sprinkler system, and it can run through a Raspberry Pi. It has a simp... The opensprinkler then always comes up with an IP adderess of 198.162.0.100, however this does not appear in the list of connected devices on my modem, and if i put that IP into my computer or phone, it will not connect. Any ideas if this is a modem issue or setting with the Netgear modem, or something else? Thanks. The solution is to connect one solenoid wire to two station ports (i.e. dedicating two ports for one zone). For example, assume on the OpenSprinkler device, station port 1 is master 1, port 2 is master 2, port 3 is ‘Zone1_primary’, and port 4 is ‘Zone1_secondary’. The solenoid wire of zone 1 is connected simultaneously to port 3 …The Android app does work if I point it directly at the OpenSprinkler controller. I’ve used tcpdump and wireshark to compare the traffic going to the controller when I try to connect the app to the controller, and the problem appears to be that the app is adding an additional “/” to the GET /js?… request when going through the proxy. ...May 16, 2020 · OpenSprinkler › Forums › Hardware Questions › Recommended flow meter This topic has 5 replies, 4 voices, and was last updated 3 years, 3 months ago by Ray . Viewing 6 posts - 1 through 6 (of 6 total) This way, if the WiFi signal is lost, the remote station will not remain on for more than 2 minutes, to avoid it being left on indefinitely. As a result, if you try to read the remaining water time from the remote station, it won’t be more than 2 minutes. The exception is when the ‘special station auto-refresh’ is turned off.May 21, 2017 at 3:48 pm #46359. Ray. Keymaster. Insert the two wires of the flow sensor to OpenSprinkler’s sensor port. Then in the OpenSprinkler web interface, go to Edit Options -> Weather and Sensors, and configure the sensor to be ‘Flow Sensor’. May 21, 2017 at 5:31 pm #46374. OpenSprinkler is an open-source Internet web-based sprinkler timer / controller built upon the Arduino platform. Features of the app include: * Easy to understand device status. * Quick program modification. * Launch ad-hoc or defined programs instantly. * Manual mode for convenient testing. * Multi-device support. The application allows you to automatically detect and control your OpenSprinkler irrigation system (s). OpenSprinkler is an open-source Internet web-based sprinkler timer / …Thanks in advance. Cheers. Tom. March 20, 2016 at 10:18 pm #41807. Ray. Keymaster. Yes, you will need a pump start relay (because a station on OpenSprinkler DC can only drive a load up to 1 amp max, if your pump requires 5 amp, you will need a relay). March 20, 2016 at 11:09 pm #41818. tom.farmer0.The application allows you to automatically detect and control your OpenSprinkler irrigation system(s). OpenSprinkler is an open-source Internet web …RFToy is an Arduino-compatible gadget for interfacing with radio frequency (RF) modules. It can be used as a standalone gadget, or in conjunction with OpenSprinkler (including DC / AC / Pi) to decode and simulate RF signals on RF remote power sockets. This allows OpenSprinkler to switch not only sprinkler valves, but general devices such as lights, …Jun 16, 2015 · The MAJOR reasons I bought an OpenSprinkler are the option to use my own WU weather station for input with the Zimmerman Method, the web interface, and the security of NOT having a device depending on the cloud like the Rachio and Blossom controllers. I assumed the Zimmerman method was based on scientific study of irrigation using past and ... Same thing here. Opensprinkler Android app does not load. It just stays there with the Opensprinkler logo and then it goes black and stays like that. I can control my OSPI fine via Chrome on my phone. Huawei Nexus 6P Android 7 stock. I tried this on my son’s Motola Nexus 6 Android 7 and it loads fine.service: opensprinkler.set_water_level data: entity_id: sensor.opensprinkler_water_level water_level: 50 Set Rain Delay Example This sets the rain delay of the controller to 6 hours, i.e. all stations will stop and programs will not run until the rain delay time is over.Aug 6, 2023 · Welcome to the OpenSprinkler application. This app only works with the OpenSprinkler controller which must be installed and setup on your home network. Purchase OpenSprinkler. OpenSprinkler.com Login. Add Controller.Nov 11, 2017 · Thanks! November 30, 2017 at 10:39 pm #48410. Ray. Keymaster. Not yet. Have been working on integrating Jeff Lawrence’s improved OpenGarage firmware, which does integrate MQTT for OpenGarage, and the same feature can be integrated into OpenSprinkler. I’ve put it on todo list now. April 3, 2018 at 1:35 pm #49483. Rain gauge is currently not supported: at least not supported if you want to use it to stop watering when a certain amount of rain is received. Technically rain gauge works like a flow sensor — the reed switch internally turns on and off repeatedly to indicate the rate at which rain is accumulated. You can use rain gauge in the sense that you ...OpenSprinkler is a device that replaces your outdated sprinkler controller and lets you create custom programs and use weather-driven algorithms. You can access and control …You can certainly clone the UI, change it, and run it locally (just double click index.html to launch the UI). Another work-around is to use HTTP API to send command to the controller manually to set GPIO zones. This allows you to bypass UI so you only need to modify the pin list on the firmware side. Author.Apr 29, 2018 · I recently installed OpenSprinkler and set it up for the Zimmerman algo. I saw a similar effect where the length of watering is reduced. My solution was to lengthen the run times for the stations, which makes the reduced run times a bit longer. Seems to be working OK for now. May 17, 2018 at 7:17 am #50026. OpenSprinkler. Welcome to the OpenSprinkler application. This app only works with the OpenSprinkler controller which must be installed and setup on your home network. …OpenSprinkler Pi (OSPi) is an open-source sprinkler / irrigation extension board for the Raspberry Pi. It is an easy and low-cost solution to transform a Raspberry Pi into a …Posts. As I understand things, WeatherUnderground has been bought out by IBM and is now a fee-based-only service. Since that happened, I know of several weather-data providers who have taken their data off WeatherUnderground and no longer provide data to that service. In order to keep OpenSprinkler completely open-source, perhaps a …Apr 28, 2014 · OpenSprinkler (Arduino-based) This is the story of how learning Arduino inspired me to invent the OpenSprinkler — an open-source, web-based sprinkler controller. I’ve had a passion for making electronic circuits since I was a kid, spending hours looking at schematics and building simple circuits like a single-transistor radio, an electronic cricket, …
So in case you are looking for a 24V AC relay to work with OpenSprinkler in order to switch high-voltage devices, this is an inexpensive (. 2. Schrack RT314524: This is a very small 24V AC relay that you can buy from Mouser or Digikey. It has a contact rating of 16A @ 250VAC, which is also plenty for common applications.. Free internet calls
PCA9555 and PCA9535 both have 16 I/O pins, and both use Totem-poll output, so they can both sink and source a large amount of current. They are used in the current OpenSprinkler 3.2 controller and zone expanders. The only difference between the two is that PCA9555 has built-in pull-up resistor while PCA9535 does not. The opensprinkler then always comes up with an IP adderess of 198.162.0.100, however this does not appear in the list of connected devices on my modem, and if i put that IP into my computer or phone, it will not connect. Any ideas if this is a modem issue or setting with the Netgear modem, or something else? Thanks. There are a bunch of kinds…. -two wire reverse polarity to open or close. -three wire, common and + to one ot open, + to the other to close. -two wire spring return – + to open, 0 to close. (more expensive but failsafe) 24vac dpdt relay driven by open sprinkler output, with a dc supply to drive the valves could be wired to any of these types.Use SSVNC on the client and TightVNC on the pi to access the pi’s desktop through the SSH tunnel. Run the interval program via Chromium web browser on the pi’s desktop. It took a little setup but it works smoothly. Maybe someday the ospi code will be secured. April 3, 2014 at 4:59 am #26340.Address OpenThings 5 Valley Lane Amherst, MA 01002 Email General Inquiry: [email protected] Orders: [email protected] Sales and Distribution: [email protected] Technical Support: support.opensprinkler.com NOTE: if you are seeking support for an existing product purchase from us, please submit a support ticket …Open Sprinkler is a free, open source, self hosted, browser based controller for your sprinkler system, and it can run through a Raspberry Pi. It has a simp...Nov 29, 2013 · OpenSprinkler Pi. Watch on. If you hate watering the garden but enjoy messing around with computers, OpenSprinkler Pi is a no-brainer. It’s the cheapest and most configurable system of its type I’ve come across, it’s open source (and this means that Ray’s not the only person working on it – tools from the community like Rich Zimmerman ... Apr 29, 2018 · I recently installed OpenSprinkler and set it up for the Zimmerman algo. I saw a similar effect where the length of watering is reduced. My solution was to lengthen the run times for the stations, which makes the reduced run times a bit longer. Seems to be working OK for now. May 17, 2018 at 7:17 am #50026. Posts. I’ve created an alternative control software module to control the Raspberry Pi OpenSprinkler system. It’s entirely self contained and doesn’t require python, a web server, or any other heavy software to operate. It can also be compiled to run on the Atmel AVR / Arduino platforms, so theoretically it should run on the AVR ...service: opensprinkler.set_water_level data: entity_id: sensor.opensprinkler_water_level water_level: 50 Set Rain Delay Example This sets the rain delay of the controller to 6 hours, i.e. all stations will stop and programs will not run until the rain delay time is over.May 16, 2020 · OpenSprinkler › Forums › Hardware Questions › Recommended flow meter This topic has 5 replies, 4 voices, and was last updated 3 years, 3 months ago by Ray . Viewing 6 posts - 1 through 6 (of 6 total) Weight. 0.23 lbs. Dimensions. 6 × 4 × 1 in. Type. 883LM door button, 893MAX universal remote. Security+ 2.0 Adapter for OpenGarage. This is for Security+ 2.0 garage systems (which has a yellow learn button). There are two options to choose from: one is based on 883LM security+ 2.0 door button, the other is based on 893MAX universal remote.Nov 29, 2012 · Also, using a Pi to interface with OpenSprinkler makes it easy to introduce weather-based features and anything that requires computation beyond what a simple microcontroller can do. January 24, 2013 at 3:34 am #23206. dman. Participant. Dan – looking forward to getting this up and running. I have fixed IP for both my existing R-Pi …Announcements, questions, and suggestions about the OpenSprinkler Unified firmware. Questions about hardware troubles and hardware design. Explore alternative firmware solutions and software extensions developed by the community. Make comments, suggestions, or request new features.Because very few users take advantage of the relay, and it’s kind of expensive, we’ve made the decision to remove the relay from all OpenSprinkler hardware (including OS, OSPi, and OSBo). Also, due to a recent supply chain problem of ATmega644, it turns out that buying ATmega644 ends up costing more than ATmega1284, that’s why …The marking may differ somehow depending on the manufacturer, but in general the marking is not the full part number because there is not enough space to put the entire part number. Many rectifier diodes are interchangeable. For example, D1 on OSPi is a standard rectifier with a minimum of 100V reverse voltage stand..