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Questions tagged [smartphones]

The tag has no usage guidance.

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38 views

Is this an antenna connector?

I have seen 3 connectors in the image ABOVE in my 4G hotspot's motherboard, what are they ? I know these are not GPS because no need of GPS in a 4G hotspot. All of the 3 connectors are facing downward ...
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1answer
62 views

Can I connect an Android smartphone to an Arduino Uno? [closed]

I'd like to connect my main Android smartphone (it's a ZTE Blade X) to my Arduino Uno. My main reason is I'd like to use the camera on my phone as a sensor for the Arduino, for various projects. Is ...
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2answers
39 views

assited gps vs differential gnss [closed]

i am writing as essay evaulating accuracy of smart phone gnsss for GIS data collection for part of the essay i thougt it appropriate to mention DGNSS and Assisted GNSS. So far i understand Assited ...
0
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1answer
54 views

Extend smartphone camera outside the device

For a project, I would like to move the camera of a smartphone (Honor 7 in my case) ouside of the device by an extension of some sort. I have determined that the connectors have a pitch of 0.4mm. The ...
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1answer
58 views

What is typical interface for WLAN chipset on a modern smartphone?

Taking into account nowadays Android smartphones support WiFi 802.11ac, what interface is being used for interconnecting of WLAN chipset with Application CPU? Is it SPI or some other? Is it OK to ...
1
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1answer
75 views

NFC/RFID device sending URL to NFC-enabled smartphone at 20-30cm

I am very new to this so please bear with me. I have read many questions but I haven't quite found a suitable one for what I would like to do. I would need a NFC/HF RFID device able to send an URL to ...
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votes
2answers
135 views

What do smartphone manufacturers do differently with their cameras than the Raspberry Pi module camera

There is a huge difference in quality between the image/video taken by the latest iPhone or Samsung smartphone compared to that taken by the Raspberry Pi camera module. What is different about the ...
0
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1answer
51 views

Does a 3rd-Party Cable cause any harm when charging your Phone with the original Power Brick? [closed]

When using the original Power Brick the Smartphone came with to charge it, does a 3rd-Party cable cause any harm to the device or is there no difference to using the original cable?
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1answer
73 views

How can I measure my smartphone transmitted power? [closed]

I was wondering if I can measure my phone's transmitted power with an SDR by tunning in the transmission bandwidth but then, I'm not sure how to know whether this power is coming out of my phone or it'...
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2answers
101 views

Smartphone internal charging circuit type and efficiency

USB usually provides 5V (or even more, for example 9V with Qualcomm Quickcharge) and the phones contain a single li-ion cell with 3.5-4.3V, so there must be some dc-dc converter in between. I wonder ...
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2answers
96 views

Cheap Low Power Signal Transmission To Smartphone

For my university project I'm making a certain sensor which has to (one-way) communicate with a smartphone. The sensor needs to be as cheap/simple as possible (aiming at +- €0,50 in total) and only ...
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2answers
147 views

Extend USB ports on a smart phone

I want to connect a microcontroller to my smartphone through its(smartphone) only available micro USB port, and at the same time enable charging and data sync capability of the phone with the PC or ...
1
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1answer
36 views

4Channel Smartphone Charger 5V 25A [duplicate]

I wanted to experiment a Smartphone Fast Charger. My source would 5V 25A, and output would be in 4 channels, all in parallel. Would that be safe to charge a smartphone? If no, what can I use to bring ...
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0answers
625 views

AMOLED display vs. LCD display: Power consumption when displaying white only?

LCD's power consumption only depends on the screen brightness setting, not on the displayed content, unlike AMOLED, where brighter colours (towards white) cause more power consumption, while black ...
-2
votes
1answer
78 views

Nexus 6P FPC connector

What is the importance of this metal edge of my Nexus 6P fpc connector? I broke one of the two, would anything be affected? Is there a name for this piece?