2 Tasks one Big Project
i'm in need of 2 things... may change depending on if 1 or other created.
first device:
one takes serial data (rs232 @ 38400 baud) in 900 mhz radio. acts wireless serial connection consider being connected garmin gps 16x hvs on other end. parses incoming nmea strings , sends via ethernet server pushes data out location tracking application. i'm concerned how fast can handle exchange , required ram don't think standard atmega enough. needs handle 300 bytes of data per unit. have 14 units hope of adding more.
the other device again takes in serial data garmin connected directly garmin gps 16x hvs sends out via rs232 serial connection. (into may radio on other end) need able handle data parsing difference have handle data single gps associated it.
any ideas on this? i'd create custom pcb both of these (to reduce cost , make connecting easier) i'm @ lost start on selecting required chips/controllers.
first device:
one takes serial data (rs232 @ 38400 baud) in 900 mhz radio. acts wireless serial connection consider being connected garmin gps 16x hvs on other end. parses incoming nmea strings , sends via ethernet server pushes data out location tracking application. i'm concerned how fast can handle exchange , required ram don't think standard atmega enough. needs handle 300 bytes of data per unit. have 14 units hope of adding more.
the other device again takes in serial data garmin connected directly garmin gps 16x hvs sends out via rs232 serial connection. (into may radio on other end) need able handle data parsing difference have handle data single gps associated it.
any ideas on this? i'd create custom pcb both of these (to reduce cost , make connecting easier) i'm @ lost start on selecting required chips/controllers.
quote
it needs handle 300 bytes of data per unit. have 14 units hope of adding more.
you use arduino mega 2560
also rs232 5v, might need check.
send data in own way, leaving non necessary , never changing data out of transmission.
you store results , sd card while processing , maybe compress during idle times.
if mega 2560 can buy quadram thingy , have more ram can poke stick at.
shouldn't worry pcb until have working design.
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