The Atmel AVR Atmega32 is a low power CMOS based microcontroller chip manufactured on the AVR advanced RISC architecture. It is featured for carrying out technologically powerful instructions within each of its clock cycles. The chip is also equipped with the capability of achieving throughputs rated at 1MIPS per MHz enabling the system manager to enforce an efficient or optimal ratio of power consumption to processing speed.
May 28, 2014
The post explains a programmable Auto-Starter circuit which may be used for getting a pre-programmed set of automatic sequential operations over a Diesel Water Pump as intended by the user. The idea was requested by Mr. Scott.
May 26, 2014
A float switch is a device which detects a fluid level (such as water) and activates a set of contacts which may be further integrated to a control circuit for restricting the fluid flow behavior. The advantage of a float switch is that it works without a direct contact with the water making the procedure free from all sorts corrosion or mechanical degradation problems,
May 23, 2014
Free Energy is available all around us in a variety of different forms, it just needs to be appropriately harnessed and used. One such example is our modern streets and roads where thousands of heavy and small vehicles pass everyday non-stop. The amount of energy transferred across the roads by these vehicles could be huge, and easily tapped, especially over the speed breakers where it's much easily accessible. The procedure and the circuit diagram are enclosed herein.
May 22, 2014
The presented twin or split battery charger circuit with auto-changeover illustrates a method through which two batteries can be charged and discharged in tandem by switching them appropriately across the charging voltages and load alternately. This ensures that the load receives a continuous supply of power irrespective of the actual source conditions such as a solar panel, wind generator etc. The idea was requested by Mr. Mohammad Zain.
May 20, 2014
In this post we discuss a simple 6V solar battery charger circuit with an automatic cut-off feature using 4 way LED indication, and an overcurrent protection. The system can be operated through a solar panel or via an AC/DC mans adapter unit. The idea was requested by Mr. Bhushan Trivedi.
May 18, 2014
For multi-storey buildings where water tanks could be at considerable heights over building terraces, monitoring the levels automatically could become a major issue. RF remote control modules have become pretty cheap nowadays which could be effectively used for solving the inconvenience. Let's learn the integration for the same, requested by Mr. Sriram kp.
May 17, 2014
The article explains a simple, accurate sound activated remote control circuit that will work on a particular sound frequency. Therefore it's perfectly foolproof since it won't be disturbed through other unwanted sound or noise. The idea was requested by Mr. Sharoj Alhasn.
May 16, 2014
A simple earth leakage indicator circuit discussed here can be used for getting some very useful results regarding current leakages from an appliance body into the earth pin. The idea was requested by Mr. SS kopparthy.
May 15, 2014
The circuit explained here will provide LED indications and show if there's a possible fault in the wiring of your home AC Live, Neutral, and Earth connections. The idea was requested by Mr. SS kopparthy.
By now you might have understood the microcontroller concept to some extent and regarding its ports and pins.
I hope you might have already constructed the SPI interface as explained in the previous tutorial, and now it’s time to ensure that our computer accepts the programmer that we need to integrate in between the PC and the MCU.
In order to allow the microcontroller to perform some meaningful implementations, it’s imperative to write appropriate instructions into the MCU.
Of course we are now ready to implement our first program inside the MCU, but before that it would be interesting to summarize quickly what we did in the course of our previous tutorials:
In the last discussion (AVR Tutorial - 6), we learned how to make an LED switch ON through a microcontroller, it was outstanding wasn't it? May be not so much!
May 3, 2014
The post discusses a simple IR remote control circuit which can be used for controlling many appliances independently through a single transmitter handset. The idea employs ordinary components like IC LM567, IC 555 and does not incorporate microcontroller devices. The idea was requested by Mr. Saeed Abu and also other dedicated readers of this blog.