Archive by Author
The Year 2010 End Notes
December 25, 2010 by rwb, under Blognote.
This year is one of interesting year for the ermicroblog readers, as we all could start to learn how to make use of Ethernet connection with the embedded system such as Integrating Wiznet W5100, WIZ811MJ network module with Atmel AVR Microcontroller project also this year I continue to post some basic electronics knowledge such as Working with the Comparator Circuit project and I will continue to post both advance embedded system project as well as the basic electronics knowledge on the year 2011. As you might notice that during this year I also update one of the most visited articles Using Transistor as Switch to include the TIP121 H-Bridge and Driving Stepper Motor circuits; I will continue to apply this similar style to other articles with the necessary and updated information. (more…)
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Using Serial Peripheral Interface (SPI) with Microchip PIC18 Families Microcontroller
September 12, 2010 by rwb, under Microcontroller.
The Serial Peripheral Interface (SPI) is one of the popular embedded serial communications widely supported by many of today’s chip manufacture and it considered as one of the fastest serial data transfer interface for the embedded system. Because of its special in/out register configuration, the SPI master device could transfer its data and at the same time it receive a data from the SPI slave device with the clock speed as high as 10 MHz. Beside its superior data transfer speed; SPI also use a very simple data transfer protocol compared to the other serial data transfer methods. (more…)
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Integrating Wiznet W5100, WIZ811MJ network module with Atmel AVR Microcontroller
July 31, 2010 by rwb, under Microcontroller.
The rapid penetration of the internet networks into many of today’s modern homes and personal gadgets (e.g. smart phone and smart pads) opening a tremendous useful and interesting embedded system application that could be integrated into our house or known as the intelligent house. For example by putting a small embedded system web server in our house, we could easily monitor such as alarm, temperature or even turn on/off the lamp or the garden’s water sprinkle; eventually from any remote location through the wireless personal gadget; Or perhaps you just want to impress your relative or friend with a very accurate digital clock which automatically synchronized the time through the Network Time Protocol (NTP) over the internet at your home or office. (more…)
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Stepping Into the 16-bit World with the Microchip 16-bit PIC24F16KA102 Family Microcontroller
May 31, 2010 by rwb, under Microcontroller.
One of the commonly asked questions when we move to the bigger and powerful 16-bit microcontroller is do we really need it? As the 8-bit microcontroller is already suite almost all of our needs from a simple blinking LED to more sophisticated embedded application such as robotics. Despite the debate whether to use the 8-Bit or 16-Bit microcontroller or perhaps just go straight to 32-bit microcontroller in our embedded system design, first I will show you the Microchip PIC18F25J11 (8-Bit) and PIC24F16KA102 (16-bit) basic comparison. (more…)
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Building your own Simple Laser Projector using the Microchip PIC12F683 Microcontroller
April 13, 2010 by rwb, under Microcontroller.
The 8 pins PIC12F683 microcontroller is one of the smallest members of the Microchip 8-bit microcontroller families but equipped with powerful peripherals such as ADC and PWM capabilities. This make this tiny microcontroller is suitable for controlling the DC motor speed. In order to demonstrate the PIC12F683 capabilities and to make this tutorial more attractive, I decided to use the PIC12F683 microcontroller to generate simple and yet fascinating laser light show from a cheap keychain laser pointer. (more…)
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Working with the Comparator Circuit
March 15, 2010 by rwb, under Electronics.
Sometimes in the embedded system world we need to process the analog world and sending the signal to the microcontroller when the analog signal exceed some predetermine limit we’ve set. Some example of this situation is to send the interrupt signal to the microcontroller operation when the temperature is already exceeds certain limit or the light intensity exceeds certain bright level. This is when the comparator circuit becomes handy as it’s designed specially for this purpose. (more…)
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Build Your Own Simple and Easy PICAXE Microcontroller Based Photovore Robot
February 4, 2010 by rwb, under Robotics.
Building a simple and easy microcontroller based robot is always a fascinating topic to be discussed, especially for the robotics newbie enthusiast. On this tutorial I will show you how to build your own microcontroller based robot which known as a photovore or you could call it as the light chaser robot using the simplest possible circuit for the microcontroller based robot brain, locomotion motor and the sensor. (more…)
