Ligo George - electroSome

Digital Clock using PIC Microcontroller and DS1307 RTC

A Digital Clock can be made easily by using PIC Microcontroller, DS1307 and a 16x2 LCD. I have already posted about Interfacing DS1307 RTC with PIC Microcontroller. The DS1307 RTC can work either in 24-hour mode or 12-hour mode with AM/PM indicator. It automatically adjusts for months fewer than 31 days including leap year compensation up to year 2100. DS1307 comes with built-in power sensing circuit which senses power failures and automatically switches to back up supply. We can provide a 3V CMOS...

May 31, 2012By Ligo GeorgeEmbedded, PIC Microcontroller, ProjectsClock, Digital, DS1307, Embedded, Microcontroller, PIC, RTC324 CommentsRead more...

The First Chemical Circuit Developed

Ion Transistors for the transport of both positive and negative ions, as well as biomolecules had been previously developed by a group of Organic Electronics research team at Linköping University. Now Tybrandt has now succeed in developing circuits using these Transistors similar to traditional silicon electronics. In essence of this technology we can build computer chips that can directly interface with our body cells. The major advantage of chemical circuit is that the charge carrier consists of chemical substances with various functions and this gives us new opportunities to...

May 30, 2012By Ligo GeorgeElectronics, Electronics NewsChemical, Human, Transistor0 CommentsRead more...

Nano Vacuum Tubes : The Future of Computing

Vacuum Tubes Reloads.... Vacuum Tubes are used in computing, switching, amplification and rectification right up to 60s. Then it died a quick death since most applications solid state device such as semiconductor devices have replaced them. We all know that Semiconductor devices are small in size and cheaper than vacuum tube devices. Silicon transistors are cheaper but they are slower and susceptible to radiation. The performance of Silicon Transistors, far away from Vacuum Tube devices due to their compact size, no heating time, reduced time...

May 29, 2012By Ligo GeorgeElectronics, Electronics NewsNano, NASA, Silicon, transistors, Vacuum Tubes0 CommentsRead more...

Implementing XOR and XNOR Logic Functions using Diode Bridge and Transistor

Using DTL (Diode Transistor Logic) we can implement XOR and XNOR Logic Functions with a minimum number of Discrete Components. When we need to design Logic Circuits operating for higher than standard supply voltages, such as 30 and 24V, we can implement it by using regulators with standard logic family and interfacing it through Level Shifters. Alternatively we can implement Logic Gates from discrete electronic components and can be operated directly from the supply voltages if the Logic Circuits are not complex. We know that Basic...

May 28, 2012By Ligo GeorgeElectronicsDigital Electronics, electronics, Gates, XNOR, XOR5 CommentsRead more...

Interfacing Real Time Clock (RTC) DS1307 with PIC Microcontroller

DS1307 is a low power serial real time clock with full binary coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM (Non Volatile Static Random Access Memory). Data and Address are transferred serially through a bidirectional I2C bus. The RTC provides year, month, date, hour, minute and second information. The end date of months is automatically adjusted for months fewer than 31 days including leap year compensation up to year 2100. It can operate either in 24-hour format or 12-hour format with...

May 24, 2012By Ligo GeorgeMikroC, PIC Microcontroller, TutorialsDS1307, Real Time Clock, RTC56 CommentsRead more...

Multiplexing of Seven Segment Displays with PIC Microcontroller

When a Seven Segment Display is interface with PIC Microcontroller it needs minimum 7 pins to display a value. But real time applications like Digital Clock, Calculator, Digital Watch requires 3-6 seven segment displays. Lets assume that we need 6 digit display, ie we need 7 segment * 6 Display = 42 pins. Thus we actually need Microcontroller with 42 output pins. This is waste and not economical to use lot of pins of a Microcontroller just for display. The simplest way...

May 23, 2012By Ligo GeorgeMikroC, PIC Microcontroller, TutorialsDisplay, Microcontroller, MikroC, PIC, Proteus, Seven Segment24 CommentsRead more...

Samsung’s New Transistor Structure using Graphene

Samsung Electronics has Developed a new Transistor Structure using Graphene to increase the possibilities of transistor in future, reported online by the journal Science, 17th May. The core R&D incubator for Samsung Electronics, Samsung Advanced Institute of Technology has developed new Graphene Transistor Device structure to hold the Moore's law true for a decade. This research is regarded as a significant step in the development of transistors, that can overcome the limitations of conventional Silicon Transistors. We all know that Semiconductor Electronics Devices consists of...

May 21, 2012By Ligo GeorgeElectronics, Electronics Newselectronics, Graphene, Moore's Law, Silicon, Transistor0 CommentsRead more...

Voltmeter and Ammeter using PIC Microcontroller

Voltmeter and Ammeter can be easily made using PIC Microcontroller having ADC (Analog to Digital Converter). I am using PIC16F877A and the result is displayed on an LCD Display. PIC16F877A is enough if you do this project only for testing purposes. I suggest to use PIC with low pin numbers and multiplexed 7 segment display if you wish to use this as your measuring instrument. Prerequisite If you don't know the basis of PIC ADC and LCD Interfacing please read the following...

May 20, 2012By Ligo GeorgeEmbedded, PIC Microcontroller, ProjectsEmbedded, Microcontroller, MikroC, PIC, Proteus292 CommentsRead more...

Author - Ligo George