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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DS18S20 Dual Temperature Meter using pic microcontroller

 DS18S20 Dual Temperature Meter Component List: 1x 2x16 LCD with Backlight 1x 16x1 LCD Female Header Connector 1x 16x1 LCD Male Header Connector 1x Programmed PIC16F628 2x DS18S20 1-Wire Digital Temperature Sensor 1x 100nF Capacitor 1x 10K Pot (LCD Contrast) 1x 10K Resistor 2x 1K Resistor 1x 10 Resistor 1x LM7805 Voltage Regulator 1x Tactile Switch (Display Modes) 1x 2-PIN Male Header Connector 1x 4-PIN Mal ...

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Very Accurate LC Meter based on PIC16F628A

About Accurate LC Meter This is one of the most accurate and simplest LC inductance / capacitance Meters that one can find, yet one that you can easily build yourself. This LC Meter allows to measure incredibly small inductances starting from 10nH to 1000nH, 1uH to 1000uH, 1mH to 100mH and capacitance from 0.1pF up to 900nF. LC Meter's circuit uses an auto ranging system so that way you do not need to spend ...

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Electronic Distance Meter using pic microcontroller

Measure distance while riding bicycle. Direct display in meter unit. Battery operated with Nitron 68HC908QY4, 16-pin MCU. Figure 1: Prototype of Distance Meter. This project demonstrates the use of 16x1 line LCD module to interface with Nitron 16-pin MCU, 68HC908QY4. The original idea came from one evening I went out with my son to the park near my home in Korat. The park has a nice walking way for people t ...

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LED LYT Meter: LED, PIC Microcontroller, and Moving Average Code

Hello everyone, thank you for checking out my first Instructable. I have enjoyed seeing your creations over the years and love what all of you are contributing. This project is a spin off of one that I recently saw here and I need to give a shout out to Bot1398 because he demonstrated to me in his Instructable that you could use an LED to detect changes in light intensity in the environment and use this to ...

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CSCI 255 Lab using pic-microcontroller

Preparation In addition to the power supply that you created on your breadboard in Lab 2, you will need the following equipment/components to complete your PIC prototype board: (1) multimeter (1) PIC 24HJ32GP202 chip (2) alligator clip leads (1) LED (1) 1K Ohm resistor (1) 2 K or 2.2 K Ohm resistor (1) 10 micro Farad capacitor (2) 1 micro Farad capacitors (1) pushbutton switch (1) power switch (1) 6 pin hea ...

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Determine capacitance by measuring the charging time using PIC16F688

When TEST botton is pressed, RA3 pin is set to "1". R2 and R3 are divide the voltage to 1/2 Vra3 which is connected to RA2 pin to be a Vref for comparator. The C undertest is charging and the timer is start. When the voltage of C undertest is more than 1/2 or above Vref, the timer is stop. and a number of periods that elapsed multiply by 10 is the C value in nF. Convert C number to string and display to 1x1 ...

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Digital thermometer with PIC16F84 circuit

This electronic project is a very simple thermometer that is based on the PIC16F84A microcontroller, designed by Microchip. Why to use a thermometer that is designed using a microcontroller and not a classic analog thermometer? Because you can design a complex solution using few external components, resulting an low cost application that provide a high precision measurement . This Digital thermometer microc ...

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Digital Ammeter circuit using pic microcontroller

Digital Ammeter circuit using pic microcontroller is designed to measure dc current. In this project, you will learn how to measure dc current using pic microcontroller? how to convert current into voltage from using shunt resistor? how to design low resistance shunt resistor using simple wire?  How to display current value on LCD. Digital Ammeter using pic microcontroller project is designed to measure DC ...

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