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Just one more thing I wanted to add; As far as the RF performance, they perform pretty well. With the chip antenna, you can expect significantly less range than using the external antenna, about 100 feet max I would suggest the chip antenna. With the cheap external antenna they provide, you can expect to get range comparable with a decent laptop WiFi. In our outdoor testing, using the supplied external antenna, we where getting 250 feet of reliable/consistent communication speeds and up to 450 feet intermittently. Those tests where run using a Cisco 819 access point. - --Mike On 14-11-23 01:01 PM, Mike Sharkey wrote: > > I have considerable experience with them in embedded > "Internet-of-Things" style devices in industrial applications. > > A) You need hardware flow control (CTS/RTS). > > B) They can be either an access point or a client. > > C) In the simplest mode, you can handle one socket connection at a > time over the serial link. > > D) There is a sort of multiplexed mode that allows for handling > multiple socket connections, and requires a little more > sophisticated programming on the serial-port side. > > E) Supplying a couple of spare GPIOs is also handy for controlling > the RESET, and a couple of other useful functions. > > F) There is apparently also an Ethernet interface available on the > module, although I have never really used that function. > > G) You can get them with an on-board ceramic "chip" antenna or > with the SMA connector for external antenna. > > In my opinion, I don't see them as being something which would be > comparable to the WiFi module, say, for instance in a laptop. They > are good candidates for a dedicated point-to-point WiFi link, or > for embedded "Internet-of-Things" type devices I suppose. > > In any case, read the documentation to be sure you understand the > limitations, and make sure you have the firmware version that > matches the documentation you're reading. There are several > versions of documentation and firmware out there, some are better > chineese-to-english translations than others. > > There is also a small inexpensive development board available on > eBay and other places that breaks out into RS-232, and some GPIOs. > > Additionally, there are now some low power versions of it that are > smaller and flatter, but are functionally very similar. > > This is who we deal with for quantity purchases...they are > generally helpful and friendly.... > > http://www.tcp232.net/WiFi-to-RS232-UART-Module > > --Mike > > On 14-11-23 09:26 AM, Philippe Elie wrote: >> Hello, > >> Did someone in this group already try those modules : they are >> supposed to connect RS232 interfaced equipment to Wifi networks. >> I am considering getting one and connect it to the available >> serial port of my serial IO board, so my S100 can be Wifi-enabled >> :) > >> The ebay auction 191046639519 provides the module (with >> RX/TX/RTS/CTS connections) and the external antenna > >> any thoughts on this ? thanks Philippe > >> -- You received this message because you are subscribed to the >> Google Groups "N8VEM-S100" group. To unsubscribe from this group >> and stop receiving emails from it, send an email to >> [email protected] >> <mailto:[email protected]>. For more >> options, visit https://groups.google.com/d/optout. > > > - -- Regards, Mike Sharkey CEO, Engineering Manager Pike Aero Corp. 420 Cross Street Sudbury, Ontario Canada P3E-3W1 P:1+(705)586-2255 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBAgAGBQJUciVEAAoJEA7EcEr0emgfCQQH/1VZndKK41BfHNKGm8xNJkwd y/QJYs2boZM3andYpL9OGwHDZjBJj7gd3CMm9dM522HwYHaNfQs2SQEFh0nZTJxo je2Y5KiZA4inX24OiU2MOHDe/GbooJeXchus3r0UhsFSfyfAP0EmYjiwQr98zOAd hQGrG5aAUGPxo5e3vi2lX5L/T/50x20JF1s8gAwNX6ieJUWyuCgaG+k2AmJVPBvR XvKU8Rg3JKLHxL1mamQ7gy5xeP9Oqghbx2ZUqygkVwXRf7kgTLHXygt3qODpdYEQ Yq5fS3+VVOS7QSV0hZvUOehwieRsXf5HAi77sYssmKTbCBqGq2vxQrSNmJfoGWI= =srNF -----END PGP SIGNATURE----- -- You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
