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by jeffrutland
Thu Aug 13, 2020 6:40 pm
Forum: Astro Pi
Topic: SenseHAT compatible with Pi4?
Replies: 10
Views: 8400

Re: SenseHAT compatible with Pi4?

ShiftPlusOne wrote:
Tue Sep 03, 2019 11:18 am
Is a display plugged in? If not, you need to force HDMI on in config.txt.
THANK YOU for this!! was pulling my hair out.
by jeffrutland
Tue Dec 10, 2019 9:54 pm
Forum: Automation, sensing and robotics
Topic: Current sensing question
Replies: 7
Views: 784

Re: Current sensing question

Now that I've googled a bit more, it seems like this right here would work - replacing the physical switch with the current sensing switch I linked:

https://raspberrypihq.com/use-a-push-bu ... y-pi-gpio/
by jeffrutland
Tue Dec 10, 2019 9:47 pm
Forum: Automation, sensing and robotics
Topic: Current sensing question
Replies: 7
Views: 784

Re: Current sensing question

My total situation is this: I have a Pi Zero in the garage with a Pimoroni EnviroHat on it. It is logging temperature readings in the garage to a Maria DB I host on a Synology NAS. The heater that I have installed is electric (220v) and also has a thermostat on it - so I don't know when it's running...
by jeffrutland
Tue Dec 10, 2019 2:11 pm
Forum: Automation, sensing and robotics
Topic: Current sensing question
Replies: 7
Views: 784

Re: Current sensing question

After digging around a little, wouldn't something like this work? Or am I making this too simple? https://www.amazon.com/Current-Sensing-Normally-Adjustable-SZC23-NO-AL-CH/dp/B07N1P6TWL/ref=pd_ybh_a_1?_encoding=UTF8&psc=1&refRID=SDY4WW7XVC92751ZBKY9 If that's a switch that simply closes when current...
by jeffrutland
Mon Dec 09, 2019 10:17 pm
Forum: Automation, sensing and robotics
Topic: Current sensing question
Replies: 7
Views: 784

Current sensing question

Hello, I'm a bit of a pi hacker, and while I'm clever with HATs and software, I'd like to detect when an appliance (a garage heater I installed) turns on and off. I started researching current sensing units, and ultimately purchased this one: https://www.amazon.com/gp/product/B07JNDRJQ4/ref=ppx_yo_d...

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