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19 Threads found on Snap Protocol
hi we developed our own RF protocol based on the free S.N.A.P i think is to big to fit in a pic it was designed to run on avr mega 323 and mega 128 the latter being for a pc link and the 323 used for a handheld monitor unit and a loadcell telemetry unit. it uses a low level hard ware driver so we could drop
I have used this PLM in the past. You can implement snap protocol to communicate the devices. In my case I used a HDLC implementation. Here I have attached a document about snap. Regards. Attachment deleted Look below ... /mikasi
I developed a wireless network to environment monitoring using snap... But I had to do few modifications to improve the performance of the entire system... I´ve chosen snap after looking many others protocols... Let me know your application and I can suggest something more... See ya Rafael
Take a look at the snap protocol (and source code) at HTH's On-Line Catalog - S.N.A.P
some info here : On same site snap protocol and some code exemples.
There can be S.N.A.P ? Look
I want to do a RS485 network, based in snap protocol with PIC'S 16F84A. If somebody know could help with information, I'm agree. Thanks
I do, quite simply, by waiting a certain period of time to allow the line to settle. In my case the network consists of 32 units, all talking asyncronously. Take a look at snap protocol. It's free. I use my own protocol but snap looks good. trace
Have a look at ST7536,ST7537,ST7538 on ST website, you will also find app notes with schematics/source code. HTH have info about the snap protocol, commonly used in these analogue modems. I think ST are the only company left doing analogue modems, most are now looking at dsp based systems for higher data rates. I know ST are
Hello. I'm hesitating between the Modbus and the snap protocols. Which one is better and why? I personally prefer snap, because it looks easy to implement and it has lots of examples for BS1 and BS2, which can be easily adapted for Picbasic pro. But as I can see, most of the users in this forum are commenting Modbus. Are there any (...)
Use RS485 at a physical level and the snap protocol to the application level. ( )
Take a look at
Use a RS485 network with the snap protocol URL HTH's On-Line Catalog - S.N.A.P
Hi The Linux Home Automation project is a bit of a misnomer. It's really meant for use under any Unix like operating system. We already have one gentleman who uses QNX so he'll keep me honest. :wink: I fully intend to keep the source code as portable as possible. And I'm working on getting a *BSD system up and running real soon. The initial inte
Could be snap ? It's media independent. Can be used peer-to-peer or master-slave. free. Regards,
It depends on what you intend to do. For a master slave network type, it's easier to use RS485. Less hardware, a little overhead in software. snap is a good protocol for start. But if you need that some nodes talk by themselves (without interogation) then without collision detection the RS485 is more then trouble. Of course you can use a "token rin
You can take a look at RS485. Depending on the driver chips that are used a max. of 127 nodes can be realized. If you do not want to write your own protocol you can also look for snap and Modbus. best regards
Take a look at the snap (HTH's On-Line Catalog - S.N.A.P ) protocol for home automation
Hi, I would like to know which protocols are being used nowadays with the transceiver HopeRF RFM12 (not 12B). Also, please let me know whether snap (Scalable Node Address protocol) is still a popular choice or not, as it was developed quite a few years (more than a decade) ago. Thanks!