Questions tagged [smart]

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56 views

Can you dim already dimmed LED lights

Ive installed LED downlights in my room, these : https://www.screwfix.com/p/lap-fixed-led-downlight-contractor-pack-white-370lm-5w-220-240v-10-pack/728fj they are controller via a smart dimmer switch, ...
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3answers
81 views

How to create a smart 3-way positional switch? [closed]

Looking at this switch as an example: https://www.directindustry.com/prod/tacthill-kynoppe/product-192123-1963276.html I have a similar 3-position switch in my garage that controls a water pump. ...
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0answers
27 views

Smarten up dumb device: remotely control 2 TACT switches and read 5 LEDs via WiFi

Got a "dumb" air cleaning thingy that won't leave the house. Now I'm forced to smarten it up since the more expensive model would have it built in but that doesn't look so nice according to others... ...
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2answers
76 views

could this be a fuse?

I was so stupid to leave a Ring rsc 516 smart charger in the rain. Hopefully, only the fuse is blown. However, I am not sure where the fuse is? could it be the black thing on the photo? I did a ...
3
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2answers
488 views

Connecting S1 and S2 on SONOFF to 230V Mini

Can I connect 230V to S1 and S2 on the SONOFF Mini? User manual: http://dl.itead.cc/mini/MINI-user-manual%20V1.0.pdf
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2answers
49 views

How turn off lights automatically?

I am trying to make system where I want lights to turn off automatically. It should work like that if someone kept lights on by mistake then it should turn off automatically without any human ...
0
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4answers
129 views

Home automation: why is wireless more popular than data over power line? [closed]

This is a question for discussion... I have recently started looking in to home automation and "smart devices" and see a clear tendency for everything to run on WiFi, with some exceptions of bluetooth,...
0
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2answers
82 views

Slow usb charger for my smart phone? [closed]

I read that the optimal charger for smartphone batteries is 3.92v (to reduce degradation). Is it possible to implement a system that allows an external "charger" to cause charging to stop at this ...
0
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1answer
59 views

Smart vs Intelligent vs Adaptive vs Advance (etc) Embedded Devices [closed]

I hope my question is not off-topic here. I am asking it here because it is directly related to the hardware devices which are primarily based on MCU's. These Embedded System devices are used every ...
0
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2answers
393 views

Mains AC Reverse Polarity - Has this damaged my fridge/freezer PCB? [closed]

In the UK, I had a smart meter installed a few weeks ago. My 4 year old Panasonic fridge/freezer (NR-B53VW2-WB) was working fine before the electric meter switch. After the install, after the engineer ...
2
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2answers
308 views

APC Smart UPS - 2700uF 40V Capacitors

Please excuse the possibly simple question but this is all a bit new to me. I have an APC Smart UPS 1000 which has a very large/tall 2700uF 40V capacitor on the battery (24V) connector. Not knowing ...
1
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2answers
123 views

How to fully shut off an LED indicator when used with a Smart Switch?

Update See added comments at end of question. I am working on a project to implement a remotely lit indicator when triggered through a wireless connection. To make this work I am trying to use ...
6
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2answers
200 views

Why batteries need to be custom and smart nowadays?

Recently I refresh a laptop battery with new 18650's. This is working however it still doesn't last very long because of the chip inside this battery. The chip must recallibrated (data is incorrect ...
0
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0answers
72 views

Smart grid communications

For my final project, I am looking about smart grid. What I want to know is that what kind of communication is done in smart grid and the appliances, protocols used etc. Can I extract a data whether ...
2
votes
1answer
446 views

Altium paste component at a new pattern shape( like circular or …)

I need to past the component in PCB part automatically in one new pattern shape,So is there any why to draw pattern and paste component in that pattern automatically by Altium ( similar to align ...
2
votes
2answers
900 views

How do you calculate the VA value of a relay?

For my capstone project I am building an outlet which can be controlled using WiFi signals. I am having trouble finding a suitable relay for this device. The relay I first used was a latching relay (...
1
vote
1answer
390 views

Difference is Bluetooth Smart and Bluetooth audio

My name is Raveen Baloo. I have been doing a lot of research on the types of Bluetooth module. For my project, i do need a bluetooth which will be able to have simple communication with a mobile app, ...
0
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1answer
386 views

Beacon detector using microcontroller and BLE

I am looking for BLE device which can detect ibeacon or beacon module/tag. I am interested to use microcontroller with BLE module instead of smartphone for beacon detector. Can any one suggest where ...
0
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1answer
99 views

Does ZigBee Smart Energy Profile 2.0 support meter data pushing from meters to a concentrator

I've had a look around but can't find a clear answer. Can ZigBee Smart Energy Profile 2.0 devices send unsolicited messages to a data concentrator without a poll from the concentrator? Like ...
2
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2answers
3k views

Trying to read serial communication from smart meter with Arduino

First my compliments for this wonderful site. I'm hoping to find an answer to my problem. I've checked to find answers, however was not able to find it. My background is somewhat technical, only with ...
0
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2answers
2k views

How exactly should I build a smart wall light switch for a smart home

I'm planning to build a smart home system and as you know smart wall light switches are a important part of it. I've been digging around for almost two weeks but still couldn't find what I'm looking ...
0
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1answer
367 views

Detect sudden change in current and send signal to arduino

I am trying to make a smart power socket using Arduino. The socket should power even high power equipments at 230 Volt 50hz through a relay. I want my arduino to analyse the amount of current taken ...
-3
votes
1answer
260 views

Electronic window tinting, darkening

Does anyone know a DIY project to make window glass dark/tinted electronically? (some kind of DIY foil). The goal is to turn it dark/clear with a remote. You may call it smart window :) eg: http://...
2
votes
2answers
392 views

Modem to Modem via GPRS

I am working on a GPRS communication design. What I want to do to connects two modems together via GPRS. But I found that i could not connect. I was able to connect both modems to the internet using ...