Tagged Questions

Human Interface Device, most commonly referring to a USB device, but can also refer to Bluetooth HID devices.

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0
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1answer
87 views

Start a teensy sketch after USB handshake has completed or upon a button has been pressed

I have an issue in starting a sketch on my Teensy at the right time. I work in a school as an IT technician and over the summer I go through all the computers on site, log-on and check if they're ...
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0answers
45 views

USB Communication between PIC and PC always transfers zero irrespective of input

I have been trying to develop USB communication between a PIC micro controller (PIC18F4550) and PC. I have established the connection and my Development Board (EasyPIC6) terminal is successfully ...
2
votes
1answer
169 views

Are any USB-to-SPI *slave* bridge chips readily available?

I would like to interface a battery-powered device to USB, without requiring users to install drivers. Data transfer requirements are moderate, so the ~60kbytes/sec of HID mode would be fine, but I ...
2
votes
3answers
452 views

How frequently must Microchip's USB HID USBDeviceTask() Task run?

I'm integrating the example USB module into my existing app and can only get it to work when I disable interrupts. I'm working off the mla example installed at the path: ...
0
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1answer
121 views

Monitoring USB Keyboard Input with Microcontroller

I am currently working on a project in which I would like to be able intercept a specific key combination from a standard USB HID keyboard with a microcontroller. The purpose is to use the keyboard to ...
3
votes
2answers
162 views

Why does GET_REPORT on my HID Keyboards sometimes return an empty packet?

I'm writing boot firmware on a PowerPC board, and I have a problem with spurious USB keyboard repeating. My firmware is based on u-boot: after enumeration it puts the keyboard into boot protocol, then ...
1
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0answers
297 views

Can Arduino UNO R3 act as both keyboard/mouse at same time?

I know that the UNO R3 can be flashed with FLIP to enumerate as a keyboard OR a mouse. I've successfully done this. My question here is, are there any methods that allow it to perform like the ...
1
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2answers
207 views

Protocol to be used to make microcontroller to work as mouse

I'am Doing a "Wireless mouse using data glove" . In this user wears a Hand glove equipped with sensors, microcontroller & transmitter. I could detect left & right movement of hand & i ...
3
votes
1answer
2k views

converting STM32F4 discovery USB mouse example to gamepad

I own a stm32f4 discovery board, for which a demonstration project can be downloaded here: http://www.st.com/web/en/catalog/tools/PF257904 This demo consists of software to use the board as a usb hid ...
1
vote
2answers
299 views

What is the best way to connect UART to USB? (need HID compatability)

I was wondering what would be the best method to add USB connectivity to one of my designs. I have an Atmel ATMega328P which will be sending HID reports to my computer, but I need a bridge to go from ...
3
votes
2answers
808 views

This device cannot start. (Code 10) error in Windows 7

I'm trying to fix an error This device cannot start. (Code 10) with a USB HID device I'm building. Here are some details on my project: IDE: MPLABX on Mac OS X MCU: PIC32MX250F128B ...
8
votes
1answer
610 views

Bluetooth HID Module

I am trying to implement my own Bluetooth HID device (a kind of custom game controller), but am having trouble finding what I am looking for. I have only come across two solutions which seem slightly ...
3
votes
2answers
761 views

How to uniquely identify USB HID class device?

I would like to identify a USB keyboard uniquely(something equivalent to unique mac-id for the Ethernet cards) on a computer. Does the USB HID profile has a support for such identification ? If so ...
3
votes
1answer
1k views

Where do I lookup values for building an USB HID descriptor?

I'm trying to educate myself a bit on creating a USB HID descriptor in C for a PIC32 USB project I want to attempt. I've downloaded the HID Usage Tables document from ...
4
votes
2answers
2k views

How to Dim HID Lamps

I am building a street lamp controller that should be able to set a street lamp to on, off, or dim state. I have successfully built an incandescent lamp dimmer (phase dimming - using zero cross ...
0
votes
1answer
192 views

How do I debug or visualise my ARM USB HID project on Mac

I've been looking around to try and find an application for Mac OS X that I can use to visualise the inputs of an USB HID device, like for example a game controller, or my USB HID STM32F4 Discovery ...
4
votes
1answer
182 views

Reading useful data from barcode input

I have interfaced a HID bar-code scanner with LPC2468. It is sending data when i scan a bar-code, it sends a lot of bytes when i make a scan, how can i know out of these bytes which are the bytes ...
0
votes
1answer
162 views

Effect of Changing polling time in hid interrupt transfer

I have interfaced a HID bar-code scanner with LPC2468 using interrupt transfer. The polling interval which i receive(from bar-code) in the Endpoint Descriptor is 10 ms. What will happen if i increase ...
0
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0answers
94 views

Polling hid device on lpc2468

I want to interface an HID bar code scanner with lpc2468 16/32 bit micro,Enumeration was successful using the UsbHostLite code,I want to poll the hid device after every 20 ms, but was not able to do ...
3
votes
3answers
855 views

Implementing HID input device with an Atmel AVR32

I want to implement a small HID input device using one of the Atmel AVR32 chips (Atmel AT32UC3B1256). The chip has an on-board USB transceiver, with D+ and D- pins etc. I've been looking at tutorials ...
1
vote
0answers
92 views

Interfacing Low speed hid device with LPC2468

I am working on LPC2468 Hid.If i interface a full speed hid device with the controller, enumeration is Successful but in case of Low speed devices enumeration is not successful. I am using the sample ...
0
votes
2answers
603 views

HID descriptor to use for a Playstation 2 controller

I'm currently making a Playstaion 2 controller to USB converter using an Arduino Uno, and it's going along very well, but I'm stuck on a specific problem. I'm trying to support the pressure sensitive ...
10
votes
1answer
358 views

Mouse dots-per-inch… how to tell?

I'm creating an embedded application that hosts a USB mouse. I'm trying to make it generic for any USB HID mouse/trackball/whatever. I've discovered that mice report differently... while they mostly ...
1
vote
1answer
659 views

BlueTooth v2.1 profile to be used

I have a requirement to make a BT2.1 adapter, which I have to connect to a balance scale via serial port. The weighing scale transfers weight data to the adapter via serial port. This BT adapter has ...
1
vote
2answers
2k views

What coordinates should an USB HID mouse return?

I am trying to implement an USB HID mouse for my custom board (to move the mouse pointer on my display). Right now, I am able to read the descriptors. I found the logical min and max to be -127 and ...
2
votes
3answers
739 views

Writing to a Parallel to USB convertor [closed]

I hope this is the right forum, I've only ever used StackOverflow and am new to Electricals. I have written an Access Control program in Delphi which sends an 8bit value to one of the three parallel ...
0
votes
1answer
269 views

Taking input from a generic usb gamepad in controllers (preferably like MSP430g2231)

I was just wondering how can I take input from this cheap but awesome HID compliant generic computer gamepad into the launchpad. I know the launchpad could work at good speed so what it would take to ...
3
votes
4answers
2k views

USB: what are the advantages (or disadvantages) or using HID over serial-over-USB?

Disclaimer: I'm a novice at electronics and even more so to working with USB, please bear with me if I misunderstand some of the essentials behind how USB works. Any correction welcome! The scenario: ...
2
votes
4answers
3k views

Can simple microcontrollers read signals from a USB to RS232 converter connected to a USB mouse?

Trying to connect as many usb mice to my arduino and just got informed of usb to rs232 converters. Can anyone tell me if it is possible to simply connect a usb mouse to a usb to rs232 converter, ...