diy digital clock ds1307 rtc with arduino uno and lcd
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Digital display electronic clock circuit
This electronic clock comprises the LM8365 and the LDD640R displays. The LM8365 can show the hour/minute and month/day. Users can set two alarm outputs, AD1 and AD2, by pressing either the 12h or 24h button. The operating voltage range is...
Electrical Isolation For I2C Bus
When the SDA (Serial Data) lines on both the left and right lines are high (logic level 1), the circuit remains in a quiescent state, and the optoisolators IC1 and IC2 are not activated.
In this circuit, the Serial Data...
Easy Debugging Terminal
This LCD terminal provides two modes of operation by selecting jumper J1. When J1 is open, the terminal operates as a normal ASCII display terminal. When J1 is closed, the terminal displays the input serial data in hexadecimal format. This...
i2c interface to usb interface using attiny45 microcontroller
Connect any I2C client chip (such as temperature sensors, analog-to-digital converters, displays, or relay drivers) to your PC via USB quickly, easily, and affordably. Drivers are available for both Linux and Windows operating systems.
The described system facilitates the integration of...
Electrical isolation for the I2C bus with optocouplers
When the SDA (Serial Data) and SDA' lines are at a logical '1', the circuit is inactive, preventing the optocouplers IC1 and IC2 from transmitting any information. However, once the SDA line transitions to '0', the LED in IC1 becomes...
digital alarm clock
Most LCD issues arise from delay routines. First, ensure proper interfacing of the LCD before proceeding with your digital clock project. A step-by-step approach is crucial. An LCD tutorial is available in the tutorial section for reference. The code has...
Cheap Digital time clock with alarm circuit by LM8560
The digital time clock circuit is of great interest to electronic amateurs. The most popular clock ICs include the LM8361 and MM5387. Unfortunately, these ICs...
The digital time clock circuit serves as an essential component for various electronic applications, providing accurate...
I2C PIC Interfacing Tutorial Circuit
The I2C PIC Interfacing Tutorial circuit is relatively straightforward; however, it requires careful verification to ensure that all connections are correct before initial operation. The primary components utilized in this circuit include the PIC18F452 microcontroller, the 24LC02B EEPROM, and a...
Alarm Digital Clock-DS1307
The DS1307 is a hardware real-time clock that operates using the I2C protocol. It features improved graphics with a traditional alphanumeric LCD (model HD44780). Icons indicate the status of the Alarm ON/OFF state, enhancing the visual appeal of the clock....