Data logging with an EEPROM

Contents    1 Original Assignment 2 Overview 3 Circuit 4 Code 4.1 PIC Code 4.2 Matlab Code 5 Example Output 6 Further Reading Original Assignment Your task is to use the PIC to log data from an analog input on an EEPROM, and after the data collection is over, to send the data back from the EEPROM to a PC running matlab. Use an interrupt service routine to read an analog input and write the value to an exter ...

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PIC MCUs: Hardware and Connections using pic-microcontroller

Required Hardware In order to program and debug a PIC microcontroller, you will need a few pieces of hardware. ICD-U40 The ICD-U40 is an In-Circuit-Debugger/Programmer that allows the user, through CCS C Windows IDE, to program and interactively debug a PIC microcontroller. 5V DC Power Supply Although the 4520 board has a voltage regulator that is capable of handling larger voltages (up to 30 volts), a five ...

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USB Keypad Demonstration – Crystal Free USB and mTouch™ Sensing Solutions using pic microcontoller

The USB keypad reference design demonstrates crystal free USB operation. Microchip has partnered with Lumvatech to demonstrate a low-cost aesthetic design, with touch capability and LED lighting integrated. All features are driven with a single PIC16F1459 MCU. USB is one of the most common serial interfaces used in a wide variety of applications. The USB 2.0 module with clock recovery from USB host, elimina ...

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Joshua Marchi’s Lab Notebook using pic microcontoller

Week 01 January 11, 2012 (1 hour): Met with professor Talavage to discuss the basic functionality of the headset sensor devices that will be used to collect data for this project. Discussed challenges of interfacing these devices to the base station using the USB protocol standard. January 11, 2012 (1 hour): Met as a team to complete preliminary project proposal. January 12, 2012 (3 hours): Researched USB p ...

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2-Wire Keypad Interface Using a 555 Timer using pic microcontoller

Keypads are a very commonly used input device in microcontroller-based systems. In a keypad, multiple switches are arranged in rows and columns so that they could be interfaced to a microcontroller with a minimum number of I/O pins. For example, a 12-key keypad is arranged in a 4×3 format, which allows to interface the 12 keys to a microcontroller with only 7 connections. The location of each key on the key ...

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Updated PIC 18F4550 USB Demo Board Video

In this video we step through a an updated version of the USB demo board. Changes include: -circuit board will only contain bare minimum parts to demonstrate USB communication from host to device and device to host -for both firmware and host software, we will make the projects from scratch, import downloaded USB function libraries, write main program step by step -these changes should make it much easier f ...

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OSOMCOM POCSAG BTS using pic microcontoller

The BTS or Base Transmitter Station is the device that transmit the POCSAG messages to the pager. It is the radio interface of the POCSAG network. THE HARDWARE The current version of the BTS hardware is a small board with a pic 18F microcontroller with a firmware that receive commands through an UART/RS232 port, create the POCSAG message and transmit it using the ADF7012 UHF transmitter. This board has not ...

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USB digital GPIO I/O extender using pic microcontoller

description Add general purpose input/output lines to your computer based projects. This circuit is a 12 pin digital GPIO interface using the Microchip PIC18f14k50 microcontroller which connects to an USB host port. The microcontroller is available in through-hole DIP20 and SMD packages, too. Circuit diagram The device is powered by the USB bus. 12 port bits can be set on a bit-by-bit basis to input or outp ...

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Computer-Controlled Light-Up Water Fountain using pic-microcontroller

System Overview La Fontaine Du Campus Est (The Fountain of East Campus) is a computer-controlled, servo-actuated, LED and halogen-lit, sump-pump powered water fountain. It features five streams of water that can each be individually controlled (on/off) as well as pivoted (90 degrees of freedom). Each stream of water is lit by a halogen light. The perimeter of the fountain has RGB triplets that can perform v ...

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USB Reprogrammable iButton door lock

iButtons are small button like casings that communicate with only 2 wires. They are incredibly robust and all have a unique serial number which is hardware written into the device and never repeated. They are cheap (about 1 Pound / 1,50 Euro/ $2) This serial number allows the keys to be truly unique and thus are effectively secure. I have seen them used: >as the till logon device at bars >in securicor ...

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