USB hub with power delivery OR android accessory mode
I’m looking for a USB hub solution for small host computer (like a Raspberry Pi or Nexus tablet) that can simultaneously power/charge said host computer. I’ve heard about the USB power delivery...
View ArticleDo I need an OS in my device?
I am planning to build a device that will help transfer data from one USB storage device to another.I am planning to incorporate a touch screen interface to provide the user with more control over data...
View ArticleWhat is a product ID in USB and do I need to buy it for my project?
I am trying to develop a portable device that will allow me to transfer data from one USB storage device to another without a using PC/Laptop. I was reading the developers guide by Jan Axelson where I...
View ArticleUSB host power dc/dc converter chip [closed]
I’m looking for a (cheap, surface mount) single-chip dc/dc converter to power a USB connection. I’m thinking that with so many USB chargers available, there might be a chip available specifically...
View ArticleBuilding a USB 3.0 host device
Two of my friends and I want to build a device that helps one to transfer data from one USB mass storage device to another using a a touch screen interface. We have worked on embedded projects before...
View ArticleArduino Uno R3 + Android multiple LED blink can turn on but wont go off
I’m new here and I have a question…I hope you could help me, any answer is more than welcome…so I am using an android app with switches to turn on and off 5 LEDs…I managed to turn on four of them, but...
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accessing usb data lines in parallel
I am attempting a project that is a basic usb keyboard logger. I plan on using a PIC32 microcontroller that has built in USB host capabilities to interface to the keyboard. My question is, can i hang...
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AVR USB by atmega8a in linux
Im using linux ,I made AVR USB by atmega8a everything is correct in micro and pc ,I can led off and and on but ,I have problem i can’t do this by usb cable (error : Could not find USB device!),I’m...
View ArticleOutputting raw bitstream via USB
I am extremely new to this and I’m learning by building stuff myself so please let me know if this is too vague and I’ll elaborate if I can. I’m sure this is something very simple, but can’t figure out...
View ArticleHow do you make a usb device thats just an accelerometer
So I’m trying to do this with as few components as possible. Also, If possible I would like to skip the microcontroller all together. So how would it be done with a triple axis accelerometer? Any...
View ArticleWho opens pipes in USB communication?
I just need to know who in the USB communication must open the pipes. Endpoints are already configured, descriptors was sent and now there should be a process of pipes opening (between correct...
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USB Memory Stick From Scratch [closed]
How can i make USB memory stick from scratch? As far as i know i need NAND flash memory chip and NAND controller chip. Which two should i use, can u recommend something and which firmware should use?...
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STM32 USB host will not return from reset request
Note: I have edited this question from its original content since I was able to find a deeper cause/symptom for the problem. I have re-written it to focus on that instead. I am using a pretty basic...
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