Circuit Lake

Electronic Project and Circuit Collection


Digital Thermometer for Car, DS18S20

May 28, 2013 By: admin Category: AVR, Measurement, Monitoring No Comments →

This digital thermometer is built as additional feature for car without outside temperature indicator. The project is built based on Attiny2313 microcontroller and DS18S20, 1 Wire Parasite-Power Digital Thermometer sensor from Maxim.

Liquid Supply Controller

April 08, 2013 By: admin Category: Control, Measurement, Project No Comments →

This liquid controller project can be used to measure & supply exact amount of liquid like water, petrol, kerosene, juice, cold-drinks etc. It uses simple set up for the hardware – an AT89S52 Atmel microcontroller, motor relay, 16×2 LCD and three buttons for input. The system uses time value rather debit counter to measure and […]

ATtiny2313 Frequency Meter

April 04, 2013 By: admin Category: AVR, Display, Measurement, Project No Comments →

The project shows you how to build simple and powerful frequency meter using ATtiny2313 microcontroller. The frequency meter can be used to measure frequencies from 1Hz to 10MHz (9,999,999 Hz) with a resolution of 1 Hz over the entire range. It displays result on seven 7-segment LED displays. The project uses 22.1184MHz overclocking crystal to […]

Air Humidity and Temperature Data Logger

March 22, 2013 By: admin Category: Data Acquisition, Measurement, Monitoring, PIC No Comments →

This temperature and air humidity data logger is built based on PIC16F876A microcontroller and SHT11 sensor. The sensor provides accurate measurement and is fully calibrated (no need to calibrate from user). The logger can measure temperature with range from -40°C to 99°C and Humidity from 1 – 99% with resolution 0.1°C temperature and 0.1% RH. […]