CC1101, NRF905, PTR8000+, difference between modules (?)

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i'm looking wireless transceivers , of names confuse me. far can tell nrf's made nordic, cc1101's made texas instruments. find on ebay:

cc1101, named nrf905, because interchangeable?

http://www.ebay.com/itm/cc1101-433mhz-wireless-transceiver-module-nrf905-si4432-with-sma-interface-/190892411767?pt=lh_defaultdomain_0&hash=item2c72130b77

cc1101, itself

http://www.ebay.com/itm/arduino-cc1101-wireless-module-sma-antenna-wireless-transceiver-module-stable-/121319182226?pt=lh_defaultdomain_0&hash=item1c3f2fcf92

nrf905, called ptr8000+, no idea means

http://www.ebay.com/itm/new-nrf905-wireless-module-ptr8000-wireless-transmission-433-486-915mhz-/191177438259?pt=lh_defaultdomain_0&hash=item2c83103433

i'm not sure whether 3 different, or 2 same. input appreciated.

cheers,

jack



Arduino Forum > Using Arduino > Networking, Protocols, and Devices (Moderator: fabioc84) > CC1101, NRF905, PTR8000+, difference between modules (?)


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