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Thread: project 'power cut'
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17-11-2013, 11:12 AM #41
Yup added a nice little blob from the glue gun to hold it in place.
The nokia 6021 comes with a charger that is 5.8v DC.
I piggy backed the live and earth wires from the charger to feed my 6V DC relay.
One question I have.
Once the "pond" calls my mobile, I answer and then hang up. However the nokia 6021 then has a message on the screen about the length of the call and how I won't be charged for it if I make another call over 2 mins long. You need to press end to exit this screen. Anyone know a way of getting round this and just getting it back into the normal mode after I hang up the phone ?
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17-11-2013, 04:11 PM #42
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18-11-2013, 02:50 PM #43
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19-11-2013, 02:22 PM #44
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19-11-2013, 10:25 PM #45
Umm, well if you get a call generally it is ringing to say your power has gone off. So the voicemail will more likely to be fairly silent.
If you can answer a call and terminate it quickly, it will only cost a few pennies. If not you will get a 2-3 minute voicemail depending on your provider. Which will cost a few more pennies but it is a very, very small price to pay for a power failure alert.
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25-01-2014, 12:28 PM #46
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03-11-2014, 11:27 PM #47
this is something for the future when i am in the mood. Awesome thread
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09-01-2015, 06:45 PM #48
It's a must have. I lost hundreds of malawi cichlids two years ago as electric board was doing work on my road. They were informed of my fish, before the project started and failed to let me know when they were doing the work. I told them that I required a generator if my electricity was going off. They double booked the work and did it without my permission. Anyway I came in from work to find around 60% of my stock floating. It got nasty between me and the electric board and solicitors were brought in. Luckily I froze a large number of fish. They ended up paying me compensation but wasn't anywhere near the amount the fish were worth as a large number were wild caught breeding pairs.
Lesson learnt I went out and got a pre made of the about and although it hasn't gone off yet it's good the have peace of mind.
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11-01-2015, 02:42 PM #49
Great idea, I have just finished building mine a rigged it up in the filter house, works a treat .
Cheers,
Simon
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11-01-2015, 08:53 PM #50
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11-01-2015, 09:25 PM #51
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11-04-2020, 11:35 AM #52
I could probably help with a Power Cut 2.0.. an open source microcontroller/GSM system?
I was looking at ways to reduce the amount of wash water from my drum using a high/low water pressure selector for example. Also make the drum a little more intelligent - perhaps record data to a card using wifi sensors and then learn the daily rhythms of the pond vs temperature etc.
I've a degree in software engineering.. parallel & distributed systems including realtime, developed drones and telescope and astronomy camera control systems. So it could be easy to make generic way todo this - including a "help" should the power go (could use a hall detector on the power line). A system like this would simply run at 5V (max 12 for valves for example) making it safe for people to DIY without going down the mains power route..
Oh.. and professionally.. integrated mobile operator networks, SMSCs, GSM devices etc for about 12 years.. now work in a quantum cryptography computing company.
You could use an Arduino, add a hall sensor(s) and a GSM shield. Add a battery backup with self charging and you could monitor a number of mains devices using the sensors to detect the electrical current flowing. If the power in any drops or shows problems - use the GSM modem to send an SMS.
One issue using pay-as-you-go SIMs and running out of credit, if you don't update the credit for a period then the SIM the operator may recycle it.
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18-04-2020, 11:25 AM #53
How often do you have to top up a pay as you go sim for it to stay active?
2660 Gallons. 4" Bottom Drain and Skimmer. Draco Solum 16 Drum. Anoxic Filtration. Air lift returns.
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freddyboy Thanked / Liked this Post
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18-04-2020, 11:42 AM #54
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freddyboy Thanked / Liked this Post
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18-04-2020, 01:33 PM #55
"you need to use it for at least one chargeable activity - like sending a text or topping up - every 180 days."
This seems pretty typical.2660 Gallons. 4" Bottom Drain and Skimmer. Draco Solum 16 Drum. Anoxic Filtration. Air lift returns.
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20-04-2020, 09:56 AM #56
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20-04-2020, 10:50 AM #57
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Ajm Thanked / Liked this Post
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26-04-2020, 09:48 AM #58
It could be a bit annoying getting a phone call from your pond to say the power has gone off when your working 250 miles away in Scotland
4600 Gallon Concrete Block and Fiberglass
2100 mm x 710 mm Infinity Window 32mm thick glass
2 x Aerated Bottom Drains and Skimmer
Filtreau HiFlow 30 Drum Filter
Bio Chamber - 140 litres K1
Bakki Shower - 30 KG Sakura Far Infrared Media
2 x 18,000 lh pumps
Heated from house boiler through a heat exchanger
Idealseal MS290
My Pond Build
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freddyboy Thanked / Liked this Post
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30-04-2020, 08:49 AM #59
Anyone had a look at this: alta-wireless-ac-current-meter---20-amp---aa-battery-powered
Ahh I see - you need their gateway product... so this all starts looking expensive.
This would be my way of doing it: https://www.dfrobot.com/product-1486.html
Then use a smart WiFi/GSM Arduino style microcontroller.
WIFI: https://www.instructables.com/id/Pro...sing-Arduino-/
You could go for a GSM shield: https://store.arduino.cc/arduino-gsm...grated-antenna
Or you could simply use a combined controller and gsm: like this or this from farnell (includes a decent power microcontroller): https://uk.farnell.com/arduino/abx00...-m0/dp/2851779 however it's likely to use the microcontroller for the GSM air-interface control like most. Or this GSM board: https://www.adafruit.com/product/1946
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