Vacuum Tubes Valves
Musical & effects
Yagi Uda Antennas
Metal Detector Circuits
Liquid Sensing Circuits
Light Sensing Circuits
Voltage Detector Circuits
Air-Gas Detection Circuits
Human Sensing Circuits
RF & Radiation
Optical Sensing Circuits
Free Energy Circuits
AC to DC & DC to DC
Solar Cell Circuits
Micro Power Circuits
Switching Power Supplies
Light Laser LED
Digital to Analog
Analog to Digital
Data Bus Circuits
Voltage to Pulse
Current to Voltage
Frequency to Voltage
RF Converter Circuits
Sine to Square Wave
Voltage to Current
voltage to frequency
Period to Voltage
Video Wall circuits
TV Video Circuits
Motor Control Circuits
8051 / 8052
PCB CAD Software
Car bike Circuits
555 Timer Circuits
Remote Control Toy
H Bridge Circuit
DIY HV Variable Cap
DIY PMA alternator
Interconnection & Timing
Digital Signal Integrity
Digital & Bipolars
Sensors & Detectors
Regulated Power Supply
4 Band Resistor
5 Band resistor
6 Band resistor
Light Laser LED Circuits
pic16f877 based digital clock using lcd display codeproteus simulation
This PIC16F877 microcontroller tutorial answers the question, "" How to implement a digital clock using PIC16F877 ? "" Using PIC16 simulator (Proteus) you ca..
pic16f877 lcd interfacing code in 4bit mode and proteus simulation
This PIC16F877 microcontroller tutorial answers the question, ""How to interface LCD in 4bit mode with PIC16F877"" ? Also, using PIC16 simulator (Proteus) y..
LCD 3 wires
This post is based on the work made previously by tomek in wiring LCD displays using 4 bits. The basic idea is to group the 7 pins that are needed to drive the LCD in only 3 using a shift register. This is a cheap alternative to serial LCDs. The schematic shows that wiring the LCD is a simple operation. It has been drawn in a way that makes it pos
S1D15G10 Nokia LCD
This is the first color, graphic LCD display I worked with. I made some assumptions when I first began working with it. From previously working with TTL logic in college, I assumed CS and RESET could just be tied high for simplicity. It wont work if you do that. They must be wired to the micro-controller to get reliable operation from the LCD. Tog
mini lcd oscilloscope
This is a low speed AVR bases oscilloscope designed by Vasilis Serasidis. I have made this Mini LCD Oscilloscope project based on Vasilis Serasidis`s design along with my students at SMKN 1 Cimahi and made a custom logo to display on graphical LCD. The firmware written in C language instead of assembly The compiler using AVR studio 4. The maximum
interafce 16x2 lcd with avr
LCD comes in various configurations and the most popular one is 16x2 matrix display. This article shows the interfacing of ATmega16 with LCD by displaying a simple character on the LCD. In this project LCD is working in 8-bit mode i. e. , the data transferred to the LCD must be in 8-bit data form. The PortA of ATmega16 is connected to data pins...
making pc usb lcd controller project
This really a work that so cool if you like modif PC. So this is a USB interface for alphanumeric LCD display like 4 G— 20 which can be controlled with LCD Smartie program. USB interface is implemented by using PIC18F2550 microcontroller, Using USB LCD modules. Below is a project of the USB LCD controller.
interface and program lcd to
The 2 X16 Parallel LCD is an 8 bit or 4 bit parallel interfaced LCD. This unit allows the user to display text, numerical data and custom created characters. The LCD uses the HD44780 series LCD driver from Hitachi, or equivalent controller. The LCD is connected to a female 14-pin connector for easy interface with the BS2p24/40 Demo Board (#45187)
lcd thermometer circuit with lm35
The LM35 of National Semiconductors that is used in this project is a precision centigrade temperature sensor, which has an analog output voltage. It has a range of -55 C to +150 C and an accuracy of ±0. 5 C. The output voltage is 10mV/ C. The output voltage is converted by the AD convertor of the AT Mega8. The temperature is displayed on an
How to connect a LCD display to an Arduino and test it. This tutorial shows beginners how to use a breadboard to connect an LCD display to an Arduno, step by step..
arduino LCD thermometer
A temperature sensor (MCP9700 linear active thermistor IC) and LCD are connected to the Arduino in this tutorial. The Arduino reads the temperature from the MCP9700 on analog pin A0 and displays the temperature on the LCD..
arduino 4 channel LCD voltmeter
An Arduino voltmeter that displays voltage on an LCD display. The voltmeter has 4 channels for measuring four different voltages..
circuit diagram of lcd tv video system
connect a lcd to a picaxe
The circuit diagram and code on how to connect an 16x2 LCD to a PICAXE-18M2 microcontroller..
connect a lcd to the bottom half of a port
The circuit diagram and code on how to connect an 16x2 LCD to a PICAXE-18M2 microcontroller using the lower half of a port for the data lines..
The EN line is called `Enable`. This control line is used to tell the LCD that you are sending it data. To send the data to the LCD, your program should make sure this line is low (0) and then set the other two control lines and/or put data on the data bus. When the other lines are completely ready, bring EN high (1) and wait for the minimum amoun
interface 16x2 lcd with 8051 microcontroller at89c51
INTRODUCTION It is very important to keep a track of the working of almost all the automated and semi-automated devices, be it a washing machine, an autonomous..
how lcd display interface circuit works 20
An LCD -liquid crystal display is an electronically-modulated optical device made up of any number of pixels filled with liquid crystals and arrayed in front of a light source (backlight) or reflector to produce images in color or monochrome. The block diagram shows the LCD gets a data source from the application processor, so therefore LCD is bei
temperature controller using ds1820 and lcd display
This Project is used to indicate the temperature and it is also used as controller. The system will get the temperature from the DS1820 and it will display the temperature over the LCD display. There are 2 preset levels, one is low preset and the other is High preset. The temperature was compared with the value stored by the user and if the temper
laptop lcd display to vga interface project
lm1881 video sync for tv and lcd monitor separator
The chips include an ATmega88 as the main controller, an AD9280 ADC, an LM6134 high-speed quad op-amp, an LM1881 video sync separator, a 74HC4066 as a simple analog switch, and an RS-232-level converter. LM1881 Video sync separator extracts timing information including composite and vertical sync, burst/back porch timing, and odd/even field inform
lcd tv power supply circuit diagram
LCD voltmeter circuit
You can use any PIC microcontroller that has an ADC and enough memory to hold the program. The LED is pulsed after every ADC acquisition to indicate that the processor is alive - so you can tell if the software is active. You can recompile the lcd volt meter files if you want examine code operation (using the built in simulator) or change the...
Serial Interface LCD circuit
The circuit simply consists of a PIC micro, ICSP interface, an RS232 level translator and an HD44780 LCD. Initially a scrolling message is displayed using show_intro. When a serial input is detected the main program starts. All keys are now either text entry or commands. An infinite loop keeps checking for key input. If the key is a hash...
The most commonly used LCDs found in the market today are 1 Line, 2 Line or 4 Line LCDs which have only one controller and support at most 80 characters, whereas LCDs supporting more than 80 characters make use of 2 HD44780 controllers. Apart from displaying some simple static characters you can create animated text scripts and a lot more! Most LC
2x16 lcd and 4x4 keypad interfacing 8051
Microcontrollers are just silicon wafers until we tell them what to do, program them according to our requirement.Read More..
How to connect and program the Arduino/Atmega168 microcontroller to LCD display and DS1307 RTC..
Interfacing LCD via SPI
As time goes by, microcontrollers become more powerful, cheaper, and smaller. A typical micro of the past could have had 40 pins and no internal memory. On the contrary, modern J-series PICs are made with 96K program memory and 28 pins. We can drive a lot of peripherals with that amount of memory, however we are getting short on pins. In this arti
Interfacing 16x2 LCD with 8051 microcontroller. LCD module theory circuit diagram and program in assembly language
Interfacing 16x2 alphanumeric LCD module with AT89S51 microcontroler. Circuit diagram,theory and program. JHD162 lcd module pinout and commands..
LCD Interfacing with AVR-Atmega8 and Atmega32
Interfacing LCD Display to Avr micro controllers-Atmega8 and Atmega32 with circuit diagram and code/program using embedded C to download..
Light Sensing Circuits
Light Dimmer Circuits
Ultrasonic distance finder circuit
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is measured. There are three main categories of distance measurement methods in use: a) By...
Simple Metal detector circuit with CD4030
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to find something potentially valuable, hidden a few centimeters below the soil. So many...
Fully automatic watering circuit for flower pots
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This circuit comes as a solution to this problem. Depending on humidity of the pot at...
Simple deep searching metal detector circuit
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the circuit of this metal detector, it is possible to detect a metal coin in depth of 90 to...
Sub-Harmonic Bass Converter for Electric Guitars
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound, such as filtering or distortion. Instead, a frequency division system produces outputs...
Echo Depth Sounding Sonar for Boats
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the calibration of the rope. This arrangement still exists in some yachts. The big...
100W HiFi Audio Amplifier Circuit
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power supply must be symmetrical so that no electrolytic capacitors are needed at the outlet....
Plant-Pot Water Level Indicator Circuit
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower. The circuit of the device is shown in Figure 2. The water detection is made from the bottom...
Analogue Sound Preasure dB-Meter Circuit
The best human ear can capture sounds from 20Hz to 20KHz. These limits are known to be the broadest that can exist. Normally the normal limits range from 100Hz to about 13KHz and depend on the age and health of the individual. We for our measurements and to have a good accuracy we will get the limits of 20Hz to 20KHz. A sound to be heard does...
DIY HV Variable Capacitor
DIY PMA Alternator Plans
Digital Signal Integrity