RE: My yearly post about environmental monitoring devices
Sensatronics (www.sensatronics.com) makes a unit (Model E16) that does a, b with easy to add jumpers, c,d, and e. Dave -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Alex Rubenstein Sent: Thursday, December 02, 2004 1:12 AM To: [EMAIL PROTECTED] Subject: My yearly post about environmental monitoring devices I'm sure if you peruse the archives, you'll see that I post about this about every year. The answer to your question is 'No, I haven't found what I am looking for yet.' However, the quest I am on is slightly different. I am looking for a device that meets the following criteria. a) Reasonably small. This probably wouldn't be rack mounted; it'd be wall mounted, desk mounted, celing mounted, etc. b) Powered by PoE. c) Is SNMPable over Ethernet. NOT RS232 or serial, or anything archaic like that. Not MODBUS. It's 2004, people. d) Provides Temperature and Humidity. e) Has 4 or so input contact sensors (connections to AC units, etc.) f) Has 4 or so output contact sensors. Help. -- Alex Rubenstein, AR97, K2AHR, [EMAIL PROTECTED], latency, Al Reuben -- --Net Access Corporation, 800-NET-ME-36, http://www.nac.net --
Re: My yearly post about environmental monitoring devices
On Thu, 2 Dec 2004, Brandon Butterworth wrote: Ethernet is cheap and trivial, drop some code in one of these (cpu is built into the rj45 socket) http://www.lantronix.com/device-networking/embedded-device-servers/xport.html Cheap is relative. These are showing about $50 each, Considering your average MCU is under $10, and smaller ones under $5, this can be equal to or more than the rest of your device. == Chris Candreva -- [EMAIL PROTECTED] -- (914) 967-7816 WestNet Internet Services of Westchester http://www.westnet.com/
Re: My yearly post about environmental monitoring devices
On Thu, 2004-12-02 at 01:12 -0500, Alex Rubenstein wrote: I'm sure if you peruse the archives, you'll see that I post about this about every year. The answer to your question is 'No, I haven't found what I am looking for yet.' However, the quest I am on is slightly different. I am looking for a device that meets the following criteria. a) Reasonably small. This probably wouldn't be rack mounted; it'd be wall mounted, desk mounted, celing mounted, etc. b) Powered by PoE. c) Is SNMPable over Ethernet. NOT RS232 or serial, or anything archaic like that. Not MODBUS. It's 2004, people. d) Provides Temperature and Humidity. e) Has 4 or so input contact sensors (connections to AC units, etc.) f) Has 4 or so output contact sensors. I think what you are looking for is something like this: http://alexandria.paf.se/ietf-59/001598_G And folks: it does IPv6 *ONLY* and was, during that ietf reachable globally, so you could telnet into it ;) There is this large IPv6 toy setup somewhere in Japan and they seem to have all kinds of these devices and thus I think if you want one of these kind of toys you will have to look into that direction... Greets, Jeroen signature.asc Description: This is a digitally signed message part
Re: My yearly post about environmental monitoring devices
I am looking for a device that meets the following criteria. a) Reasonably small. This probably wouldn't be rack mounted; it'd be wall mounted, desk mounted, celing mounted, etc. b) Powered by PoE. c) Is SNMPable over Ethernet. NOT RS232 or serial, or anything archaic like that. Not MODBUS. It's 2004, people. d) Provides Temperature and Humidity. e) Has 4 or so input contact sensors (connections to AC units, etc.) f) Has 4 or so output contact sensors. Sorry Alex, but I think you are barking up the wrong tree. A cheap simple temperature and humidity sensor would be built around a PIC chip and would use a serial bus to communicate status. Since this is 2004 that would be an I2C serial bus, but in reality an RS-232 daisy chain would suit this application just fine. When you add Ethernet as a requirement then you are asking for an I/O interface that is more complex and more expensive than the basic temp/hum recorder on the PIC. However, it definitely is possible to do this and many people have done so. I suggest that you go to a company like http://www.edtp.com and tell them what you want and how many you would buy in the next year as well as an estimate of how many they could REALISTICALLY sell to other companies in 2005. When you look at the prices on his website, remember they are single unit hobbyist prices. I think that a PIC board built around his packet whacker Ethernet would do what you want and could easily be powered with PoE and be installed in a box with flexible mounting options. If you can't get what you want from this company, then start looking for people who do PIC development. You might even be able to get a college sophomore to design and manufacture these for you for some spare pocket money. The PIC code including TCP/IP stack, is readily available through googling. The only area where you might have to compromise is SNMP since I think most people who do this are trying to make PIC web servers. But it's simple to run a custom SNMP proxy on a server if you need to hook this into your management system. Please report back on what you find. I think a lot of people would be interested in this type of unit. --Michael Dillon
Re: My yearly post about environmental monitoring devices
Sorry Alex, but I think you are barking up the wrong tree. When you add Ethernet as a requirement then you are asking for an I/O interface that is more complex Ethernet is cheap and trivial, drop some code in one of these (cpu is built into the rj45 socket) http://www.lantronix.com/device-networking/embedded-device-servers/xport.html talk ibutton on the serial port and you're done. and more expensive than the basic temp/hum recorder on the PIC. Ethernet or don't bother. Serial is so last century. brandon
RE: My yearly post about environmental monitoring devices
I was at a trade show yesterday and they had some interesting boxes for remote control. They don't meet your spec but someone might be interested. This box has serial and digital control connections but works via GPRS rather than Ethernet. Makes an interesting back door that could be independent of any other connections you have. http://www.atop.com.tw/e/product/SG6103.htm Roy Engehausen -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Alex Rubenstein Sent: Wednesday, December 01, 2004 10:12 PM To: [EMAIL PROTECTED] Subject: My yearly post about environmental monitoring devices I'm sure if you peruse the archives, you'll see that I post about this about every year. The answer to your question is 'No, I haven't found what I am looking for yet.' However, the quest I am on is slightly different. I am looking for a device that meets the following criteria. a) Reasonably small. This probably wouldn't be rack mounted; it'd be wall mounted, desk mounted, celing mounted, etc. b) Powered by PoE. c) Is SNMPable over Ethernet. NOT RS232 or serial, or anything archaic like that. Not MODBUS. It's 2004, people. d) Provides Temperature and Humidity. e) Has 4 or so input contact sensors (connections to AC units, etc.) f) Has 4 or so output contact sensors. Help. -- Alex Rubenstein, AR97, K2AHR, [EMAIL PROTECTED], latency, Al Reuben -- --Net Access Corporation, 800-NET-ME-36, http://www.nac.net --
RE: My yearly post about environmental monitoring devices
I am looking for a device that meets the following criteria. I'd add: g) Inexpensive, so it can be widely deployed. A Basic Stamp might be the platform for such; but I've retired from hardware hacking projects. I'd suggest queries to sci.electronics.design in hopes of finding someome interested. -- A host is a host from coast to [EMAIL PROTECTED] no one will talk to a host that's close[v].(301) 56-LINUX Unless the host (that isn't close).pob 1433 is busy, hung or dead20915-1433
RE: My yearly post about environmental monitoring devices
g) Inexpensive, so it can be widely deployed. That's why I suggested talking to a college sophomore. This is the kind of thing that electronics engineering students do for a 3rd year project. A Basic Stamp might be the platform for such; I don't think that a Stamp or PICAXE will work. These are PIC devices with built-in BASIC interpreters. To do the SNMP, you need an IP stack on the device and that really has to be done in assembly language. All of the PIC projects I have seen interfacing to Ethernet or to RS-232 IP interfaces, have been done in assembly. As I said, 99% of the design work on this is available out there on the web. You just need someone willing to put it all together and manufacture the boxes. For an alternative approach, have a look at Netguardian. http://www.dpstele.com/products/ne/netguardian/ High capacity SNMP Alarm connector, NEBS 3, etc. --Michael Dillon
Re: My yearly post about environmental monitoring devices
I don't know if they're here yet, but, PICs with builitin Ethernet are definitely on the way. I'm not that much of a hardware geek, but, some of the hardware geeks I know have bee talking about these for a while in terms that make me think they're expecting samples any day. Owen --On Thursday, December 2, 2004 11:42 AM + [EMAIL PROTECTED] wrote: I am looking for a device that meets the following criteria. a) Reasonably small. This probably wouldn't be rack mounted; it'd be wall mounted, desk mounted, celing mounted, etc. b) Powered by PoE. c) Is SNMPable over Ethernet. NOT RS232 or serial, or anything archaic like that. Not MODBUS. It's 2004, people. d) Provides Temperature and Humidity. e) Has 4 or so input contact sensors (connections to AC units, etc.) f) Has 4 or so output contact sensors. Sorry Alex, but I think you are barking up the wrong tree. A cheap simple temperature and humidity sensor would be built around a PIC chip and would use a serial bus to communicate status. Since this is 2004 that would be an I2C serial bus, but in reality an RS-232 daisy chain would suit this application just fine. When you add Ethernet as a requirement then you are asking for an I/O interface that is more complex and more expensive than the basic temp/hum recorder on the PIC. However, it definitely is possible to do this and many people have done so. I suggest that you go to a company like http://www.edtp.com and tell them what you want and how many you would buy in the next year as well as an estimate of how many they could REALISTICALLY sell to other companies in 2005. When you look at the prices on his website, remember they are single unit hobbyist prices. I think that a PIC board built around his packet whacker Ethernet would do what you want and could easily be powered with PoE and be installed in a box with flexible mounting options. If you can't get what you want from this company, then start looking for people who do PIC development. You might even be able to get a college sophomore to design and manufacture these for you for some spare pocket money. The PIC code including TCP/IP stack, is readily available through googling. The only area where you might have to compromise is SNMP since I think most people who do this are trying to make PIC web servers. But it's simple to run a custom SNMP proxy on a server if you need to hook this into your management system. Please report back on what you find. I think a lot of people would be interested in this type of unit. --Michael Dillon -- If it wasn't crypto-signed, it probably didn't come from me. pgpAXTV7mxhoi.pgp Description: PGP signature
Re: My yearly post about environmental monitoring devices
[EMAIL PROTECTED] writes: When you add Ethernet as a requirement then you are asking for an I/O interface that is more complex and more expensive than the basic temp/hum recorder on the PIC. Or not. http://www.lantronix.com/device-networking/embedded-device-servers/xport.html (no, it doesn't support POE, but that's an easy hack fi you think about it). ---Rob
