Somewhere, I acquired a YL-69 moisture sensor.
#Opensprinkler beagle download code#
I’ll have some stable code to compare against the particle library. Since there isn’t a lot of pins on the Electron, I decided to vet the sensors on the Mega 2560.
I am currently wiring that sensor and a YL-69 to a Mega 2560. I think in the future I will replace my Open Sprinkler and bring control into Node-Red. I have eliminated the OLED display as once can just browse to the web page with their phone or tablet. This gives me all the GPIO I need as well as flow metering and extra UARTS if needed. I also have the I2C slave running in the CPLD. I am also thinking of making a plug in for the ESP8266-12 as well as the Photon. There is a built in function to control lights with sunrise / sunset times.Īs far as the hardware is concerned, I have the function blocks designed (schematic). There is a very nice “node” timer function which I have been testing to control lighting and watering times. With Node-Red I am able to create all the control logic. The MQTT server brings all the data together which I can access on the Node-Red Dashboard served up on the BeagleBone. I was originally going to use a Photon in the cloches but I don’t need all the I/O it has. The xmas lights will be controlled locally with an ESP-01 which is subscribed to the MQTT broker. The reason for going with this combination is in addition to the greenhouse, we have some plants scattered around the yard that are protected over winter with cloches and (old style) incandescent xmas lights as heat sources. I have also been setting up an MQTT broker in my BeagleBone so I am able to run Node-Red. Heck, I will even give you a board if someone wants to help on the firmware side! I am happy to share all the design files. Perhaps this controller can be leveraged to other application areas with a firmware change and the right combination of I/O.Īre there others out there that could use this controller for themselves?Īre there any additional measurands that should be included? Why am I posting this? There is a lot of commonality between greenhouses, aquariums, terrariums and aquaponics. The board will fit into an industry standard DIN enclosure with plug in style connectors. All inputs will be ESD protected in accordance to IEC/UL 60730. The CPLD can also have the flow meter totalizer as well as a solar radiation integrator (using the PAR sensor). I know the Photon lacks the I/O but I can add a CPLD with an I2C slave instantiated in it to act as an GPIO expander. Solenoid valves for misting and drip watering The controller will measure and / or control: Optically isolated digital inputs (120V tolerant)ĭigital outputs (SSR for 24Vac irrigation valves)Ĭhopper drive (variable speed for single phase induction motor/fan)? I am in the process of spec’ing out a multifunction I/O board the Photon will plug onto. Basically, the controller is just a collection of inputs and outputs (both analog and digital). Never the less, I have been toying with the idea of making a greenhouse controller for some time now. I am a hardware guy and my firmware skills are limited such that I could, at best, be called a bit banger.
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