rtc ds1307 interfacing with at89c2051.43
#RTC DS1307
#AT89C2051
#real-time clock
#microcontroller
#I2C communication
#timekeeping
#embedded systems
#clock module
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Night Light Saver
A Microchip PIC12C508 8-pin CMOS microcontroller controls a night light, turning it on and off at preset times every day. It is designed to save energy, produce no electromagnetic interference (EMI), and operate without batteries, featuring a built-in lamp fixture...
Microcontroller interfacing with RS 232
Standard serial interfacing of a microcontroller (TTL) with a PC or any RS232C standard device requires a TTL to RS232 level converter. A MAX232 is used for this purpose. It provides a 2-channel RS232C port and requires external 10µF capacitors.
The...
Perfect Pitch Circuit
Perfect Pitch, which is based on the 8751 microprocessor, is an affordable and straightforward instrument tuner and frequency counter that features a built-in headphone amplifier and a visual metronome. Perfect Pitch converts the audio signal from an instrument into a...
mosfet Turning a microcontroller on with a flip flop
The objective is to control the power to a load, specifically an 8051-based microcontroller (uC), using two switches. When the uC is powered on, it sets the PWR pin high. Upon pressing the switches again, pin 4 of the flip-flop...
Electronic TIC TAC TOE
This project is not to introduce Tic Tac Toe. Everyone knows this game. It is to introduce two features: bi-coloured LEDs, microcontrollers, and the skill of writing an ALGORITHM. You can use the project to learn the skills of creating...
Multitasking Pins circuit
It is entirely logical that low-cost miniature microcontrollers have fewer pins than their larger counterparts, sometimes too few. Consideration has been given to how to economize on pins by making them perform the work of several. It was noted that...
Digital event Counter AT89C2051
Digital visitor counter is a reliable circuit that takes over the task of counting Number of Persons/ Visitors in the Room very Accurately. When somebody enters into the Room then the Counter is Incremented by one and when any one...
home security system
The fundamental design of this project employs an Atmel AT89S8252-24PC Microcontroller, which features 2KB of EEPROM for runtime data storage. An ADC0838CCN analog-to-digital converter will be utilized to process up to eight inputs from sensor devices, including passive infrared sensors...
Experimental I/O board for microcontrollers
For beginners experiencing similar challenges, a general-purpose I/O board is recommended to minimize prototyping time and maximize space on the breadboard for projects. The construction of this board is straightforward. Basic I/O devices can be soldered onto a general-purpose perforated...