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.
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.
This article discusses about the milli Ampere Hour (mAH) rating specified on batteries and considerations to be kept in mind while replacing batteries.
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.
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.
I was looking for a RF transceiver with good RF range for using in my project. But, when i looked at the specifications of the wireless devices, i did not find the RF range or distance mentioned in the details. This article is to give an idea on quickly calculating the range of your Wireless device using Transmit power and Receiver sensitivity.
Don't get confused between JOB and studies, " Studies is to learn and job is to earn ". Once you fall behind money you may not be truly interested in learning. Its true that you can gain practical experience in job, but it depends on the type of company you are joining.
SIM300 GSM modem operates at voltages from 3.6V to 4.5V. Most of the microcontrollers we use operate on +5V power supply and hence the IO signals also swing from 0 to 5V. This article discusses about connecting a 5V microcontroller UART lines to SIM300 GSM modem UART lines.
I have been hearing the name Arduino since some time, but never took the time to know what it is. Most of the time it popped up in front of me was in the form of an advertisement of a blue colored development kit. I thought it was just a hardware development kit from ATMEL.