guys, know difference between these 2 cheap wireless devices ?
i'm using these below, i'm not satisfied. working, distance couple of meters (with antena 20). on longer distance confuse signall ...
here on pic 2 below "common" used. i've found them on every arduino wireless tutorial...
my question is, have experience both compare ? ... or have experience atleast these on pic 2, how meters can them ?
also, when in range more same devices, send each other different messages, can expect problems ?
thank
i'm using these below, i'm not satisfied. working, distance couple of meters (with antena 20). on longer distance confuse signall ...
here on pic 2 below "common" used. i've found them on every arduino wireless tutorial...
my question is, have experience both compare ? ... or have experience atleast these on pic 2, how meters can them ?
also, when in range more same devices, send each other different messages, can expect problems ?
thank
they should same. range depend on antenna, should vertical straight wire 17 cm long on both transmitter , receiver (for 434 mhz).
you can vastly increase range using dipole antenna, in attached photo. 1 end connected module ground , other "ant". end-to-end length of antenna should 32.8 cm. on 300 meters line-of-sight range setup, using #14 awg copper wire (1.6 mm in diameter).
you can vastly increase range using dipole antenna, in attached photo. 1 end connected module ground , other "ant". end-to-end length of antenna should 32.8 cm. on 300 meters line-of-sight range setup, using #14 awg copper wire (1.6 mm in diameter).
Arduino Forum > Using Arduino > Networking, Protocols, and Devices (Moderator: fabioc84) > Modules for cheap wireless
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