A good exercise for a beginner is to implement a module that pretends a timer.
To do this we have used the following functions that already exist in C library:

When I developed a TV project, something strange really bothered me for weeks. The CRT (Cathode Ray Tube) TV project was based upon a Philips 8051 TV microcontroller with on-chip OSD (On Screen Display) and Tuning features. The software was running on my emulator without any problems. So our customer decided to launch pilot production. The QA team found something strange in the internal audit procedure and notified me urgently. Among 12 TV sets, about 5 TV sets randomly shown the retrace scanning lines after AC switching on. The occurrence was unpredictable.

5 years ago, one of my colleagues developed a project upon 8051 platform. Unfortunately, there was a fatal bug in the firmware which would lead to a business fiasco and damage company's goodwill. Our boss asked us if there was any means to save the business and escape from the crisis. I knew that the microcontroller' intermal memory was actually using OTP (One Time Programming) EPROM technology, so I promised to study the code and try to hack it.

Some AVR developers reported that the AVR's EEPROM will be erased randomly. And these poor people are driven crazy because they have no clue about the real cause for it. Is AVR micro's embedded EEPROM not stable at all? Well, there are not perfect products in the world. But I would rather say the real cause might be yourself.
Do you have any idea what AVR is doing during reset?

Out of the box code is quite often a God send gift, especially when handling a new micro. But sometimes ......
I started mucking around with a dsPic4011 few months ago, using MPLAB and C30. I was quite happy since I was able to run an "hello world" application in a very short time. Not only did the MPLAB and C30 installation go smoothly but coping and pasting code available on the C30 peripherals library, programming uart1 and timer1 was a piece of cake!

ARM is a 32-bit RISC processor architecture, developed by ARM Limited that is the most widely used 16/32-bit embedded RISC solution in the world. The ARM instruction set architecture has evolved significantly since it was first developed, and will continue to be developed in the future! This is our Book about ARM dev.emcelettronica/arm

USB <-> RS232 Converter

We have inserted the plan of an USB-RS232 serial converter through which you can add a COM port to your notebook (installing the free VCP driver) or equipping your microcontroller application with USB functionality.

The idea was born from the knowledge that everyone of us has in the drawer at least one old GSM phone, that, for varied reasons, we do not use! The following application is realized using a PIC microcontroller connected to Ericsson T18 phones, testing the compatibility also with A1018 and T28. But it is not commercialized for reasons of difficult availability of the connectors, instead it can be a lot interesting for hobby use.

For setting the SIM Card like predefined memory:
AT+CPBS="SM" < CR>
TO FIND a PHONE NUMBER from the SIM CARD by inserting the NAME

For setting the SIM Card like predefined memory:

AT+CPBS="SM" < CR>

TO FIND a PHONE NUMBER from the SIM CARD by inserting the NAME