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Pi Club

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FergusG Jan 2021 11:49am, 26 Jan 2021 4,216 posts	0 FergusG I don’t think you’ll be able to use cron, as you’ll be running your own code directly on the device (rather than running it within a somewhat richer Operating System). Most of the Arduino examples are basically infinite loops with some sort of yield/sleep/wait logic.
ZenTaoPlurp Jan 2021 12:27pm, 26 Jan 2021 365 posts	0 ZenTaoPlurp If I had one, I'd be able to tell you... I haven't dived in yet, but the specs mention a clock on the RP2040. If it's continually powered then as long as you know when it was first powered then bingo. At a basic level it runs the main.py code but it is a twin core chip and much more seems possible, but may need some lower level coding to achieve a Cron-like run environment. With a single main.py block, those numerous input pins could be used to configure or trigger different parts of code within one main.py. Or, you could use a Pi...
fetcheveryone Feb 2021 11:14pm, 13 Feb 2021 25,646 posts	0 fetcheveryone We transferred Lance to his Pico life support. I just used sleep(606024) within a continuous loop to give him his daily drink. Now my Pi is free again for a new project.
flanker Feb 2021 12:56am, 14 Feb 2021 19,673 posts	0 flanker Has anyone set up a pi with a motion sensing camera? Or maybe more likely, with a camera backed by motion-sensing software?
rhb Feb 2021 10:57am, 14 Feb 2021 1,623 posts	0 rhb Flanker yes, motioneyeOS is very simple to setup and use.
flanker Feb 2021 2:54pm, 14 Feb 2021 19,674 posts	0 flanker Ta
Hanneke May 2021 3:02pm, 24 May 2021 74,024 posts	0 Hanneke Hello Fetch's podt about automatically watering Lance has made me think that it is feasible to set up something to water the tomatoes in the greenhouse once a day? I am totally new to this Pi business...
fetcheveryone May 2021 3:41pm, 24 May 2021 26,091 posts	0 fetcheveryone It definitely is, Hann. The Pi has a set of pins on it that you can use to send signals to other electronic components. In my case, the Pico is running the following code, over and over again: Turn relay on Wait 1 second Turn relay off Wait 246060 seconds Here's a Pico: amzn.to (but cheaper here): thepihut.com Here's the relay I use: amzn.to Here's the pump: amzn.to Mine is for an indoor plant (so less thought gone into weatherproofing etc) - and there are a million ways you can scale up that design.
FergusG May 2021 4:02pm, 24 May 2021 4,404 posts	0 FergusG I'd suggest starting simple, and then building things up if/when you get hooked by the whole automation thing. You could upgrade from a simple timer rule to using readings from soil moisture sensors if you want to get fancy. You could also go nuts and have the windows open/close based on readings from a humidity and temperature sensor! N.B. As an indoor system, Fetch will also have found it easier to get power to his device.
Hanneke May 2021 4:59pm, 24 May 2021 74,028 posts	0 Hanneke I should have said: it is for my greenhouse! A real tie in summer as it needs watering, on hot days twice a day! I have power to it by means of an outdoor cable reel and ducting through the foundations. Apart from greenhouse type humidity, I think it will be ok.