• SRAM memory interface to microcontroller

    SRAM memory interface to microcontroller

    Static random access memory (SRAM) is a type of volatile semiconductor memory to store binary logic ‘1’ and ‘0’ bits. SRAM uses bistable latching circuitry made of Transistors/MOSFETS to store each bit. Compared to Dynamic RAM (DRAM), SRAM does’t have a capacitor to store the data, hence SRAM works without refreshing. In SRAM the data is lost when the memory is not electrically powered.

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  • USB interface covering basic fundamentals

    USB interface covering basic fundamentals

    Universal Serial Bus (USB) is a set of interface specifications for high speed wired communication between electronics systems peripherals and devices with or without PC/computer. The USB was originally developed in 1995 by many of the industry leading companies like Intel, Compaq, Microsoft, Digital, IBM, and Northern Telecom.
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  • URM37 V3.2 Ultrasonic Sensor (SKU:SEN0001)

    URM37 V3.2 Ultrasonic Sensor (SKU:SEN0001)

    URM37 V3.2 Ultrasonic Sensor uses an industrial level AVR processor as the main processing unit. It comes with a temperature correction which is very unique in its class. This sensor is perfect for any number of applications that require you to perform measurements between moving or stationary objects. Naturally, robotics applications are very popular but you’ll also find this product to be useful in security systems or as an infrared replacement if so desired.sensor measures distance using sonar; an ultrasonic (well above human hearing) pulse is transmitted from the unit and distance-to-target is determined by measuring the time required for the echo return.

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  • Interfacing SRF05 with AVR ATmega32

    Interfacing SRF05 with AVR ATmega32

    Recently, Jaime Andres Arteaga designed a simple C program to use a SRF05 ultrasonic sensor, low cost ultrasonic rangefinder up to 5 meters, with AVR ATmega32. The microcontroller sends a pulse trigger (10 us minimum) and then, the sensor produces a pulse that is proportional to the distance.

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  • SD Cards and FAT file systems for STM32 cortex m3

    SD Cards and FAT file systems for STM32 cortex m3

    Chans FatFS

    A Secure Digital (SD) card is a tiny memory card used to make storage portable among various devices, such as car navigation systems, cellular phones, eBooks, PDAs, smartphones, digital cameras, music players, camcorders, and personal computers. An SD card features a high data transfer rate and low battery consumption, both primary considerations for portable devices. It uses flash memory to provide nonvolatile storage, which means that a power source is not required to retain stored data.

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  • KEYBOARD INTERFACING WITH 8051 MICROCONTROLLER

    KEYBOARD INTERFACING WITH 8051 MICROCONTROLLER

    The predominant interface between humans and computers is the keyboard. Keyboard range in complexity from the “up-down” buttons used for elevators to the personal computer multimedia keyboard layout, with the addition of function keys and numeric keypads. One of first requirement was to interface keyboard with microcontroller and with the main processor in personal computers.

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