Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [iphone]

Questions about iPhone's hardware and interfacing circuits to iPhone

139 questions
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Using an iPhone as a cassette recorder for 80's home computer

I've got an old 80's home computer (a Microbee) that I've just got running again. It uses cassette to save/load programs and I thought I'd see if I could use my iPhone instead of an actual cassette recorder/player (since I don't have one). I made…
Brad Robinson
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Add iPod 4 dock to old Hi-Fi (Will my idea work?)

I'm currently attempting to add an iPhone Dock to my old Aiwa Hi-Fi system. I've used a multimeter and established that the VCC for the Hi-Fi's internal circuitry is 4.83V. I've used information from Pinouts.ru to come to the conclusion that the pin…
Adi Bradfield
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TRRS connector with iphone circuit board, how to get mic compatible with PC input (Bose Q25)

I have a Bose Q25 headset, it uses an iphone compatible trrs jack. It contains stereo input, mic output and the button controls. I split it into 2xTRS jacks using a commercial splitter, the mic is still disfunctional. I tried to contact Bose…
John
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Scrapping conponents from an iphone

I have an iphone 4 that no longer works. I know that selling it is always an option, but i'm curious if i can scrap spare parts from it instead (especially sensors). I've looked online, but haven't found any evidence of any DIY instructions on how…
Paul
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How much energy can the iphone output into an external device?

I am having a lot of trouble finding any concrete information online about how much voltage/amperes the iphone 30pin as well as the new 8pin connector is capable of outputing to an external device. Does anyone know if, and if so how much, power the…
BillBo
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iPhone Charging Current Zap

I charge my iPhone 4 right next to where I build my circuits, so I'm always simultaneously looking up datasheets, texting and so on. What's interesting is whenever I touch the rail/antenna of the iPhone, and any grounded part of the circuit, I feel…
ezra_vdj
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TS jack to XLR?

I made my own cable to connect iPhone 4S to mixer. An iPhone TRRS jack has 4 poles (tip, ring, ring, sleeve) for (left, right, ground, mic ) respectively. I used a TS plug instead, connecting pin 2 in XLR to tip ( hot ) and pin 1 to ring ( sleeve or…
Ahmed Fouad
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Delayed button press

I am working on a headphone circuit that plugs into an iPhone , between the mic wire and the GND wire there is the mic , and a push button , with iPhones when you press the button once it will pause/play music , twice will skip too the next song ,…
jackv12333
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How does iPhone detect when dock connector is connected to an audio input?

I'm trying to solve a seemingly simple problem with (hopefully) an equally simple solution. I'm strictly an amateur when it comes to electronics, so I'm hoping someone here can guide me in the right direction so I don't do something stupid and fry…
Jeff Loughlin
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