Bluetooth is quite bit more of a complete system than mere RS232. It probably has CRC packets to transmit more data with error checking. For BasicStamp to BasicStamp it is a bit of overkill as RS232 over radio waves can do quite well with the amount of data that is exchanged. It does have the advantage of recognizing the identity of the sender and receiver, but that also increases the software overhead.
What is it really used for?
I have a Bluetooth to USB dongle for my PC and my Palm Tungsten has Bluetooth for interface with the PC to download and update. I gave up on it because it was slower than the USB and there are issues with having hackers jump into your PC via their own Bluetooth interface. In fact, Bluetooth cell phones were apparently a boon to law enforcement because they could be turned into listening devices without the user's knowledge.
I believe that the security issues have now been resolved. Parallax has the EmbeddedBlue device that would really be nice to allow you to control a roaming robot from your PC. Bluetooth can reach your backyard or around the corner if you want to go that far [noparse][[/noparse]different trancievers have different ranges].
Also, Bluetooth has developed a stereo audio setup, but I have yet to see it on the market. In this way, you wouldn't need wires to speakers or earphones. For an outdoor cafe or a roaming audiophile, this would be very nice - even listen to music on your motorcycle.
The new Wifi standard is much more appealing for heavy exchanges of PC data as many forerunners were to slow. I am sitting in a Starbucks in Kaohsiung, Taiwan right now and surfing the internet on my new mini laptop. Wifi makes it all possible. You could even Skype me and have a chat with someone half a world away.
If you want CRC and packets over the airwaves for reliablity, but something more useful for multiple microcontrollers, I would suggest transmitting and recieving CANbus as the packets of 8 bytes are about all you need. If things get messed up, it will request retransmission. You can have hundreds of devices listening to the same broadcasts, but only accepting items addressed to them.
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
PLEASE CONSIDER the following:
Do you want a quickly operational black box solution or the knowledge included therein?······
···················· Tropically,····· G. Herzog [noparse][[/noparse]·黃鶴 ]·in Taiwan
Vertex78
Posts: 51
Comments
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
- Stephen
What is it really used for?
I have a Bluetooth to USB dongle for my PC and my Palm Tungsten has Bluetooth for interface with the PC to download and update. I gave up on it because it was slower than the USB and there are issues with having hackers jump into your PC via their own Bluetooth interface. In fact, Bluetooth cell phones were apparently a boon to law enforcement because they could be turned into listening devices without the user's knowledge.
I believe that the security issues have now been resolved. Parallax has the EmbeddedBlue device that would really be nice to allow you to control a roaming robot from your PC. Bluetooth can reach your backyard or around the corner if you want to go that far [noparse][[/noparse]different trancievers have different ranges].
Also, Bluetooth has developed a stereo audio setup, but I have yet to see it on the market. In this way, you wouldn't need wires to speakers or earphones. For an outdoor cafe or a roaming audiophile, this would be very nice - even listen to music on your motorcycle.
The new Wifi standard is much more appealing for heavy exchanges of PC data as many forerunners were to slow. I am sitting in a Starbucks in Kaohsiung, Taiwan right now and surfing the internet on my new mini laptop. Wifi makes it all possible. You could even Skype me and have a chat with someone half a world away.
If you want CRC and packets over the airwaves for reliablity, but something more useful for multiple microcontrollers, I would suggest transmitting and recieving CANbus as the packets of 8 bytes are about all you need. If things get messed up, it will request retransmission. You can have hundreds of devices listening to the same broadcasts, but only accepting items addressed to them.
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
PLEASE CONSIDER the following:
Do you want a quickly operational black box solution or the knowledge included therein?······
Post Edited (Kramer) : 1/4/2008 2:04:35 PM GMT