Circuits & Schematics: pic - 9

81. Versatile Digital Speedometer Uses Few Components
    Circuits Measurement Domestic
    A speedometer measures a wheel's rotational speed. Unlike conventional mechanical and moving-magnet designs that use analog moving-pointer displays, the electronic speedometer in this Design Idea features a digital readout and a power-saving device ...
    Nov 14, 2007

82. Nokia 3310 Lcd Thermometer Using DS18B20
    Circuits Measurement Microcontrollers Usage
    Use parts of an old or broken mobile phone? Why not! One useable part of a mobile phone is its LCD, which can be used in many applications where we need data visually presented. Nokia 3310 has a LCD with 84 х 84 dots, that isn't that hard to ...
    Feb 4, 2008

83. The Turing Alarm Clock
    Circuits Microcontrollers Usage Domestic
    Nick Johnson This is an old invention of mine. I had trouble waking up for work, and traditional alarm clocks didn't seem to help. I learned to hit the snooze or off buttons in my sleep. The problem was that alarms are too easy to turn off, and so ...
    Feb 20, 2008
84. Short Range Personal Radar. Sweeping Radar System - using a GP2D120 IR Sensor
    Circuits Radio Security
    .. more complicated than previous projects. There are four main features in our design. (1) We will be able to program the pic on the board we develop. (2) We will be controlling a servo. (3) We will be taking data input from an IR Proximity ...
    Feb 28, 2008
85. The Wooden Menace - a Mighty Robotic Arm Powered by Servos
    Circuits Microcontrollers Usage Robots
    .. E-poxy Fancy Door Hinge Plastic Sheet Tools Wirewrap Tool Soldering Iron Laptop Computer MPLAB IDE (installed on Laptop) PIC Programmer Power Drill Hammer Jigsaw Sand Paper Schematic Schematic Overview The hardware schematic for the wooden ...
    Mar 10, 2008
86. Autorange Capacitance Meter
    Circuits Measurement Microcontrollers Usage
    .. time the meter is used, I also implemented a button to save the calibration settings on the EEPROM of the PIC16F873A. The PIC loads the setting everytime the device gets powered on. Source code Schematics
    Mar 30, 2008
87. A DIY Instant Messenger Online Contact Signalizer Picture Frame Thingy
    Circuits Computers and Peripherals Networks
    Let's start with the picture frame itself. I desided to make a picture frame to support five small passport sized portraits. I made a base in hardwood with two long grooves in which some sheets of polycarbonate could be inserted. I used a metal ...
    Apr 16, 2008
88. Personal G-Force Meter
    Circuits Automotive Measurement
    .. item has been included to help give you an idea of what they look like. I'll go through and explain the key parts below. PIC 18F452 The PIC will be the brains of this project. The A/D's on it will be used to take the data, then it will ...
    Apr 30, 2008
89. Magnetic Levitation Project
    Circuits Allegro UGN3503U
    Pete Back Shed This project demonstrates magnetic levitation. It's a fun and educational project. Magnet Levitation I seen a gadget that had a magnet levitating in mid air, and started to wonder how it was done, so decided to test a few ...
    Oct 21, 2016
90. LM3915 / LM3916 VU Meter
    Circuits Audio Light National Semiconductor LM3914 LM3915 LM3916
    .. should go to the first pin on the LED, followed by pins 18-10 so they will light up in order. As you can see in the second pic, I got a little sloppier on the second set of LEDs and just used wires from a jumper kit so its a little messy. Now ...
    Sep 1, 2008

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