port i2c rtc circuit | Next Electronics

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...

Beginning Embedded Electronics - 2

Acquire all the components required for this lecture here. It is highly recommended to obtain a multimeter with a continuity setting. A quality multimeter with this feature typically costs around $60, while premium models can reach $300. The $60 option...

Microcontroller Relay Driver and Interface

Many microcontroller designs typically integrate various interfacing methods. A microcontroller (µC) system can be viewed as a system that reads from inputs. Microcontroller systems are versatile platforms that facilitate the integration of multiple interfacing methods to interact with various peripherals and...

I2C using (MSSP)

I2C are widely use for to communicate with external peripheral such as port expender, EEPROM, Real Time Clock etc. The Master Synchronous Serial Port (MSSP) module in PIC18 can be used to communicated with I2C peripheral. MSSP module can be...

POWER LINE MODEM FOR COMPUTER CONTROL

This circuit employs an 87C57 microcontroller along with several peripherals to convert X-10 power-line carrier-code formats from a personal computer for use with an X-10 power-line interface in a home-control system. Software details can be found in the reference. The circuit...

microcontroller led interfacing

The initial step often taken when learning about any microcontroller or embedded system is to make an LED blink. The circuit presented below illustrates the setup for interfacing an LED. Note: Due to the large dimensions of the circuit diagram,...

Secured room access system

Security is a primary concern in daily life, and an access control system is a crucial component of a security framework. The microcontroller-based digital lock described here is an access control system that permits only authorized individuals to enter a...

Microcontroller-based automatic night light circuit

While discussing an all-linear automatic night light circuit, it was mentioned that an MCU-based Automatic Night Light Controller (ANLC) was being tested. The firmware has been tweaked since then. Recently, the sensor was installed outdoors and connected to control 220VAC...

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...