- Published: 07 March 2014
This article is to share my experience using the ST Microelectronics micro controllers. I have been using STM8S, STM8L, STM32, microcontrollers since a long time in all of my prototype projects to Products.
- Published: 29 December 2013
SIM900 is the widely used GSM modem around the globe after EOL of SIM300 which was more popular among students and hobbyists. In India there exist two versions of SIM900, the original SIM900 and the SIM900A. Here are a few things you need to know about the difference between SIM900 and SIM900A GSM modems commands and features.
- Published: 27 December 2013
Digikey is the standard and default electronics vendor chosen by designers and professionals all over the world. Since Digikey is based in USA, ordering components from Digikey to India is going to cost an additional $40 for shipping. This shipping charge is not really a problem for companies and professionals.
- Published: 19 December 2013
This article should give you a brief introduction about the PCB manufacturers in India and also the cost for different types of PCB's charged. I have only designed 2-layer and 4-layer boards so far and the maximum size of the board has been 110mm x 75mm.
- Published: 11 December 2013
This article describes the AT command set for accessing internet using GPRS on SIM300 GSM modem. The SIM300 can only support 2G network with very low data rates, In this example i have used VODAFONE SIM card for accessing internet.
- Published: 05 October 2013
While designing a microcontroller board for a clients product, I came across a requirement where in the microcontroller was needed to drive a load with a current requirement around 100mA from a single output pin. But the microcontroller output pin is not capable of driving such a high current through the load.
- Published: 07 August 2013
Almost everyone today knows and uses a Elevator in their daily life. But how many of us know how exactly it works?. Will you be able to design your own elevator if provided with necessary tools?. The idea of this article is to describe the Elevator system from a embedded systems designers point of view.
- Published: 31 May 2013
This article discusses about the milli Ampere Hour (mAH) rating specified on batteries and considerations to be kept in mind while replacing batteries.
- Published: 27 May 2013
Recently we did a mini project on Wireless temperature sensing using the basic 433 MHz RF modules TLP434 and RLP434. This article contains the circuit diagram for connection of TLP434 and RLP434 to PIC16F877A microcontroller and the C program used.
- Published: 13 April 2013
While doing a project on GSM based energy meter billing system, Students came up with a requirement that the system should be able to detect if the SIM card has been inserted in GSM modem or not.