Title :
Low-cost acquisition and development board. An open source hardware proposal
Author :
Espitia Beltran, Alfredo
Author_Institution :
Univ. Nac. de Colombia, Bogota, Colombia
Abstract :
This paper presents the features of a 45mm × 45mm board based on an 8-bit AVR RISC Microcontroller (MCU) with direct Universal Serial Bus (USB) interface. It can be assembled for only 12 dollars and aims to become an open source hardware project. The board has a 10-bit Analog to Digital Converter (ADC), with 8 multiplexed channels and can capture up to 15,000 Samples per second (Sps). Such properties can support the development of a wide range of instruments such as thermometers, electromyographs, electrocardiographs, spirometers, stethoscopes, &c. Its architecture allows signal processing by implementing digital filters and its USB direct interface minimizes the restrictions for proper communication with other devices. Some additional features are the 48-pin In/Out (I/O), the Universal Synchronous and Asynchronous Serial Receiver and Transmitter (UART), the 2-wire Serial Interface (TWI), the Serial Peripheral Interface (SPI) and the 16 touch channels, among others.
Keywords :
analogue-digital conversion; digital filters; microcontrollers; peripheral interfaces; 2-wire serial interface; 48-pin in-out; AVR RISC microcontroller; SPI; USB direct interface; USB interface; analog-to-digital converter; digital filters; direct universal serial bus interface; electrocardiographs; electromyographs; low-cost acquisition board; low-cost development board; multiplexed channels; open source hardware project; open source hardware proposal; serial peripheral interface; spirometers; stethoscopes; thermometers; universal asynchronous serial receiver; universal asynchronous serial transmitter; universal synchronous serial receiver; universal synchronous serial transmitter; Assembly; Connectors; Frequency measurement; Open source hardware; Prototypes; Universal Serial Bus; Acquisition; Development Board; Open Source Hardware; USB;
Conference_Titel :
Image, Signal Processing, and Artificial Vision (STSIVA), 2013 XVIII Symposium of
Conference_Location :
Bogota
Print_ISBN :
978-1-4799-1120-2
DOI :
10.1109/STSIVA.2013.6644920
