Usb Hub Schematic

Cy7c65632, cy7c65634 hx2vl™ very low power usb 2.0 hub controller cypress semiconductor corporation • 198 champion court • san jose, ca 95134-1709 • 408-943-2600. Click here to receive the iogear newsletter and / or discounts: stay connected; facebook; twitter - iogear news; twitter - iogear deals; youtube. This is a step by step guide on creating your own usb compatible charger using your bicycle’s hub-dyn ...

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Interfacing HC-SR04 Ultrasonic Sensor with Raspberry Pi

Ultrasonic distance sensors are designed to measure distance between the source and target using ultrasonic waves. We use ultrasonic waves because they are relatively accurate across short distances and don’t cause disturbances as they are inaudible to human ear. HC-SR04 is a commonly used module for non contact distance measurement for distances from 2cm to 400cm. It uses sonar (like bats and dolphins) to ...

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WeatherPiArduino Weather Board

WeatherPiArduino is a weather station controller board designed to interface to Arduino and Raspberry Pi computers.  It is an interface board developed by SwitchDoc Labs to allow the user to easily build a fully functioned Weather Station while allowing customization of functions. WeatherPiArduino is derived from Project Curacao.  Generation 1 of this board was deployed and tested in Curacao before Generati ...

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Raspberry Pi – RS232 Serial Interface Options (Revisit)

In the previous article Raspberry Pi - Installing a RS232 Serial Port we discussed how to install a RS232 port on the Raspberry Pi.  This is a follow up article to suggest a few alternative interface options as the XBit RS232 level-shifter board has been unavailable (sold out) for while now. There are two primary RS232 interface options you can choose from for serial connectivity: USB (USB to Serial Adapter ...

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Raspberry Pi Serial Port

Many of the GPIO pins on the Pi have other special uses.  The most useful of these are the serial port pins #8 and #10, which are transmit and receive for an RS-232 serial port.  By default this port will output diagnostic messages during boot and then provide a user login.  The configuration is 8 bits, no parity, 1 stop bit, no hardware handshaking, at 115200 baud.  The device name is /dev/ttyAMA0. I need ...

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Quick2Wire Interface Board – Assembly and Troubleshooting

TESTS (1) On the Quick2Wire boards there is a 3-pin male header with pins for 5V, 3.3V, GND. I attached the test circuit to 5V and GND — it glowed as it should. Same for 3.3V and GND. So I decided that the board was probably working. (2) I left the black lead of the tester attached to GND, inserted a length of wire bared at each end into the other lead, and then into GPIO pin on the board labeled p0 on the ...

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Interface I2C with the Raspberry Pi

Note: Full source (still not finished) is available github.com/drcrane/raspberryrfid. The Raspberry Pi has a few different interfaces available to it, one is I2C (a protocol created by Philips and used in many places, it is the basis of VESA DDC!). I had the opportunity recently to interface with an SL030 RFID Mifare reader, it is a nifty little thing that is quite cheap from SK Pang Electronics. The SL030 ...

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Connecting SNES sockets to the Raspberry Pi: An assembly guide

In a previous post, I described my idea of a universal console with the Raspberry Pi. I presented, what I called, the SNESDev-RPi, which is an SNES-controller interface for the Raspberry Pi. A core element of this interface is a SNES-adapter PCB that I recently designed and that does nothing more than providing all needed connections between the GPIO pins and two SNES connectors. In this post I describe the ...

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Raspberry PI Serial Port and Breakout Board

erial port to the Raspberry PI and breaks out some of the PI's pins for experimentation. The interface board was designed to be simple and used for initial experimentation. It can be built on a single-sided PCB using home-made PCB fabrication methods. KiCad source files are provided so that the design can be modified if needed. The RS-232 serial port allows the Raspberry PI to be programmed by connecting it ...

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NES Controller on the Raspberry Pi

Part 1: The Hardware & Driver Some time back, I joked that the Raspberry Pi’s GPIO port really stood for Game Port IO… So to make that joke come true, I present a way of interfacing the NES Joysticks to the Raspberry Pi. First you need the joystick/controller unit, and a quick trip to the Plymouth Market where I’d had a tip that there was a stall selling retro gaming gear and I returned with a pair of t ...

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