hello, I am using multiple sensors installed on several arduinos to log data on an SD-card. the sensors i am using are an ultrasonic sensor, an accelerometer sensor, an OBD-II, and finally a GPS module. the ultrasonic US-100 is sampling at approximately 90 Hz and is digitally connected on an arduino uno the accelerometer ADXL-345 is sampling at approximately 390 Hz and is connected to a separate arduino uno via i2c connection the OBD-II UART sparkfun along with the arduino GPS shield are sampling at 1 Hz and are connected serially to the same arduino mega
all above arduino boards are connected in turn serially to an arduino mega as master-slave, after which i intend to log the received data onto an SD card connected via SPI unto that master arduino mega. any idea how might i be able to log the data acquired as fast as possible without any issues directly onto the SD memory card?
thank you in advance
*OBD-II details ==> https://www.sparkfun.com/products/9555
*GPS shield details ==> http://www.electronicaestudio.com/docs/ISTD-030hd.pdf
*Accelerometer ADXL-345 details ==> https://solarbotics.com/product/50656/
*SD card logger details ==> http://robotbase.en.alibaba.com/product/367642250-210608919/SD_Read_Write_Memory_Module_SD_Card_V2_0.html