Archives for Flowcode Projects

Digital Thermometer – Flowcode

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Temperature sensors are very important in many projects especially in temperature logging devices and alarms. In this article we are going to design a digital thermometer using Flowcode. This digital thermometer is built around the LM35 which is a precision integrated-circuit temperature sensor whose output voltage is linearly proportional to the Celsius (Centigrade) temperature. Its output changes by 10 mV per °C so there is no need for calibration. It can measure a wide range of temperature from −55 to +150°C
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A Very Cheap PIC Microcontroller Programmer

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For many hobbyists and students interested in programming PIC Microcontrollers, the high cost of a programmer can really be a huge obstacle. The programmer described in this article is very easy and cheap to build. It can cost you less than R 100 ($10) to build it and all the software used to program the PIC luckily are also free. You can use MPLAB X IDE with XC8, XC16 or XC32 compilers from Microchip Technology Inc that can be used to write and debug code for a PIC Microcontroller. You can download a free copy of MPLAB® X IDE and XC8 Compiler from Microchip website. They are also other compilers that you can use depending on your preference, like Mikroelekronika compilers where you can download a free 2Kb limited demo compiler on their website.
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Simple 5V DC Power Supply

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In any electronic products or projects there is always a source of power for the system to work. This is called a power supply. The source of this power can come from different sources like the mains AC voltage, a battery or even from a renewable power source like a solar panel wind turbine or fuel cell to name just a few. The most common source of power is usually the mains AC, with this power, we need a transformer to convert the 220V 50Hz mains or the 120V 60Hz if you are living in the United States of America to a lower voltage required by the electronic circuit, this can be typically between 6V and 12V when 5V regulated DC is needed. In this article we are going to design a simple 5V DC power supply using the 7805 voltage regulator.