LCD Display | Electronic Project Circuits

Posts Tagged ‘LCD display’

LCD thermometer by ICL7136

The ICL7136 is the IC of the CMOS that the function to measure the voltage of the input correctly, the function to control the LCD(Liquid Crystal Display) and so on are housed in 1 chip. It is possible to measure the voltage to ±200 mV or ±2 V. The ICL7136 is the type which uses the LCD as the display. There is the ICL7137 in the type which uses the LED for the display. The control signal of the LCD is the square wave of the frequency is about 60 Hz(48KHz/800) and the voltage is 5.5Vp-p.

PIC16F84A 3.5GHz LCD Frequency Counter

room temperature controller with PIC. This equipment uses two temperature sensors, drives external equipment, and keeps the temperature of the room at preset temperature. The purpose of this equipment is for preventing room temperature going up with the heat of the computers. Electric cost will become high if an air-conditioner is always operated. Then, I made the equipment which adjusts the temperature of the room automatically using some ventilation fans. The function below preset temperature is a function attached moreover. I think that it can use for temperature control, such as a greenhouse.

Read more Source:http://foxdelta.com/products/freqcounter.htm

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Be the first to comment - What do you think? Posted by admin - May 7, 2008 at 7:17 am

Categories: Meter, Microcontroller Tags: Frequency meter, LCD display, pic micro project, pic16f84 circuit diagram

Temperature – Light Brightness Meter with LCD

Circuit measures the temperature and ambient brightness of the surrounding environment at the location it is placed. The data from the ADC is the calculated and displayed on the LCD. The main CPU unit on board the device is the PIC16F873.

Read More Source:http://www.geocities.com/dariuskrail20/Templite.html
Thank you.