21
votes
How do I shut down IoT devices without a power button?
A well-designed endpoint device will manage loss of mains power. This can be achieved by using a robust filesystem design, or by maintaining sufficient power in battery/supercapacitor supplies to ...
- 10.3k
16
votes
Battery backup for small IoT devices?
You can hook up a USB battery pack to both the Pi and the charger (as long as it is designed to charge while being used) and if the power goes out the USB battery pack will take over powering the Pi ...
- 161
15
votes
Accepted
Can I send my GSM IoT device via airpost?
The IATA Lithium Battery Guidance Document is as close as you can get to a worldwide set of guidelines for battery transport by plane.
The section which I assume applies to your device is 2.3.5.9, ...
- 18.1k
15
votes
How do I shut down IoT devices without a power button?
What is the preferred way to disconnect them from power? What if there is a power cut?
I assume you are talking about devices which act as gateways to aggregate and send it to the cloud (for e.g.: ...
- 1,490
13
votes
How do I shut down IoT devices without a power button?
You would very rarely want to remotely power off an embedded device. Instead, you put it into sleep mode, otherwise you can never remotely wake it again.
In sleep mode, normal functionality is ...
10
votes
How do I shut down IoT devices without a power button?
What is the preferred way to disconnect them from power? What if there is a power cut?
Most microcontrollers have a feature called "Brown out detection". This basically a supply voltage monitoring ...
- 7,453
9
votes
Battery backup for small IoT devices?
If possible choose a device that has a built in battery. A few such examples that use the common 2-pin JST connector. The first two are based off of the esp8266
WioLink
WioNode
C.H.I.P ($9 computer)...
- 551
8
votes
How do I shut down IoT devices without a power button?
Your smart devices (camera, sensors,...) manage very well power outage by design.
For your Rapsberry Pi, you can put an UPS or a powerbank and monitor (ping) your Internet gateway to check if there ...
- 3,676
6
votes
What can I do when the AWS IoT Button runs out of charge?
It seems like that is what Amazon intended. Since you are being credited for the purchase of the device, it is no loss to you and only to Amazon and the Earth itself (waste and whatnot)
However, ...
- 161
6
votes
Accepted
What can I do when the AWS IoT Button runs out of charge?
From what I read on Matthew Petroff's teardown, the battery could sort-of be replaceable. In the new version of the AWS button, a triple A battery is in place, but you have to pry open the case ...
- 4,642
5
votes
Can I send my GSM IoT device via airpost?
If the device is powered, and the radio is capable of being powered, then this is likely to be prohibited by the carrier. You should find the specific carrier will provide regulations for what can ...
- 10.3k
5
votes
Battery backup for small IoT devices?
The smaller and cheaper way to supply power to wireless devices is to reduce power consumption as much as possible in the first place. Designing for low power is less convenient that not caring for it,...
- 553
5
votes
Battery backup for small IoT devices?
You can switch over from main power to battery backup using a couple of diodes, for example like this.
I did something similar with a 15 V transformer and a 12 V car battery: as long as the mains ...
- 586
5
votes
How do I check whether a LTE network supports CAT M1?
I tried hard to find out an AT command for that, but unfortunately I didn't find it.
Instead I found semi new slides about m1 and m2.
https://www.slideshare.net/mobile/SmallCellForum1/discussion-...
- 4,301
4
votes
Accepted
Can I ship the product (internationally) with LiPo battery included?
ICAO and IATA have quite a number of resources on the topic.
https://www.iata.org/en/programs/cargo/dgr/lithium-batteries/ is an intro page with links to many other documents, including the 2021 ...
- 1,968
4
votes
Can I send my GSM IoT device via airpost?
As a GSM capable device you must switch it to Airplane mode. Which means the device RF interface must be completely shut down.
Basically what you have described can be any smart phone, and I believe ...
- 7,453
4
votes
How do I shut down IoT devices without a power button?
What if there is a power cut?
Is my data at risk?
For most well designed commercial IoT devices you need not worry about sudden power loss. Let's take case on the Nest Thermostat.
The Nest ...
- 2,570
2
votes
How do I shut down IoT devices without a power button?
Different classes of IoT devices have different requirements as to functioning in light of power loss. Your weather station might not care if power goes down, but your security system might. Your ...
- 658
2
votes
IFTTT: Use trigger from one applet with ingredient from another applet?
To my knowledge, this is unfortunately not possible.
The BatteryPercentage ingredient comes from the Android Battery trigger, so you can only get that data if you are using one of the Android Battery ...
- 18.1k
1
vote
Battery powered MCU with accelerometers and LTE-COMS, looking for products
Your case is a pretty straightforward scenario where battery life will come from sleeping a lot.
Let's take a few figures. To last 3 months on a 3 000 mAh battery, you need to draw an average of less ...
- 1,968
1
vote
Can I ship the product (internationally) with LiPo battery included?
Many millions of products are shipped with batteries every day.
What rules will apply will depend on a factors you have not included (shipping method, size of battery, type of packing, number of units ...
- 12.4k
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