USB Voltmeter using pic microcontoller

USB Voltmeter USB Voltmeter is a PC based dual channel voltmeter built around PIC18F2455 / PIC18F2550 microcontroller that measures voltage from 0.00V up to 500.00V with 10mV resolution. USB Voltmeter sends measured data to PC via standard USB connection displaying data on a computer monitor. USB Voltmeter is self-powered drawing very little current from USB port. Voltage readings are displayed via included ...

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High res cap meter with PIC 16F628

High resolution capacitance meter measures in 0.01pF digits. Total range 0pF to 50uF. - 27th Jun 2011, Updated 25th may 2013. Another PIC based capacitance meter? Although there are a few PIC based "pico" capacitance meters on the internet this design has some advantages over the other designs I have seen; 1. It has very high resolution; from 6 to 7 digits! (Others have 3 or 4 digits) 2. It has a wide range ...

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Sine Triangle Square Saw Burst Sweep Noise – runs on a PIC16F870

After the recent demise of our multifunction signal generator, we decided to make one of our own.   The circuit uses a PIC16F870 (about $3), an R/2R resistor ladder network (for a real fast and cheap D/A),  and a few other parts. You can check out the schematic and the current source file.  Also the object (hex) file.  All of the sine wave functions utilize a full 256 byte by 8 bit lookup table.  Contrary t ...

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Computer controlled infrared transmitter based on PIC

description This is a programmable infrared (remote control) transmitter, which can be controlled from a computer serial port. It is capable of sending many remote control formats, including the Philips RC-5 standard. Exact formats with the timing parameter names are shown on the pictures: operation The controller will accept commands on a serial port. Settings are: 19200 bps, 8 bits, no parity, 1 stopbit, ...

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Connect ADC with PIC16F877

ADC (Analog to Digital Converter) module is available with a number of PIC MCU modules. ADC is an electronic circuit that converts continuous signals to discrete digital numbers. ADC Library provides you a comfortable work with the module. Library Routines ADC_Init ADC_Get_Sample ADC_Read ADC_Init Prototype void ADC_Init(); Returns Nothing. Description This routine initializes PIC’s internal ADC module to w ...

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Connect ADC with PIC16F877

ADC (Analog to Digital Converter) module is available with a number of PIC MCU modules. ADC is an electronic circuit that converts continuous signals to discrete digital numbers. ADC Library provides you a comfortable work with the module. Library Routines ADC_Init ADC_Get_Sample ADC_Read ADC_Init Prototype void ADC_Init(); Returns Nothing. Description This routine initializes PIC’s internal ADC module to w ...

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Build a digital spirit level using a SCA610 accelerometer using PIC16F684

A bubble or spirit level meter is a handy tool to find whether a surface is horizontal or vertical. It is often carried by civil engineers, mechanical engineers, surveyors, carpenters, and many other professionals whose work involve precise alignments of horizontal and vertical planes. Original spirit levels had two banana-shaped curved glass vials at each viewing point and were much more complicated to use ...

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Seven Segment Display Thermometer with PIC Microcontroller

The seven segment display is one of the most popular numeric displays used in many microcontroller applications because it’s cheap, robust and reliable. The seven segments actually consists of 8 LED (Light Emitting Diode) and it’s come with various sizes suitable for various numeric display application such as digital clock, counter, thermometer, humidity, etc. On this project we are going to show you how t ...

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Thermometer with PIC Microcontroller

In the last tutorial we learn about the multiplexing technique used with seven segment displays. We learnt how it saves i/o line by using persistence of vision. Only one digit is lit at a time, but to a human eye it is too fast to catch, so we see all four digit lit the same time. In this tutorial we will make a practical use of multiplexed seven segment displays. We will use them to show current room tempe ...

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Schematics and C code for a 0-5V PIC LCD Volt Meter. using pic microcontoller

This PIC LCD volt meter project uses a PIC micro and an HD44870 LCD display. The analogue input is taken directly to the analogue input pin of the microcontroller without any other processing. Specification Voltage range 0V - 5V Input signal level TTL Maximum input impedance 2k5 The LCD volt meter uses the microcontroller power supplies as reference voltages and so it is not likely to be very accurate (e.g. ...

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