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MSP430 + Zigbee or similar RF module?Hi,
Does anyone know of a chip or module with a Zigbee style RF unit controlled by a MSP430? (I want to build a long life battery powered tiny RF tag similar to a PIC controlled tag I currently use for asset protection/tracking) Thanks. [Non-text portions of this message have been removed] |
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RE: SPAM-LOW: Re: MSP430 + Zigbee or similar RF module?Hi Richard
I have used Embers Em260 with the Msp it provides a good spi interface and works perfectly. Regards ed _____ From: msp430@... [mailto:msp430@...] On Behalf Of Claro Louie Sent: 17 July 2008 13:07 To: msp430@... Subject: SPAM-LOW: Re: [msp430] MSP430 + Zigbee or similar RF module? Hi Richard, Try the EZ430RF2480 kit from Ti. This includes the MSP430F2274 and a CC2480 Zigbee Processor.. This was also suggested to me by Alonso ( also from msp groups). cheers, Claro ----- Original Message ---- From: Richard (UK) <ymsp430@augmentics. <mailto:ymsp430%40augmentics.com> com> To: msp430@yahoogroups. <mailto:msp430%40yahoogroups.com> com Sent: Thursday, July 17, 2008 6:50:31 PM Subject: [msp430] MSP430 + Zigbee or similar RF module? Hi, Does anyone know of a chip or module with a Zigbee style RF unit controlled by a MSP430? (I want to build a long life battery powered tiny RF tag similar to a PIC controlled tag I currently use for asset protection/tracking ) Thanks. [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] |
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RE: RE: SPAM-LOW: Re: MSP430 + Zigbee or similar RF module?If low power consumption is the goal then two processor solution may not be
the best approach. Em250 or TI's 8051 / CC2420 based chip should do. SJ _____ From: msp430@... [mailto:msp430@...] On Behalf Of ed keane Sent: 17 July 2008 13:42 To: msp430@... Subject: [Norton AntiSpam] RE: SPAM-LOW: Re: [msp430] MSP430 + Zigbee or similar RF module? Hi Richard I have used Embers Em260 with the Msp it provides a good spi interface and works perfectly. Regards ed _____ From: msp430@yahoogroups. <mailto:msp430%40yahoogroups.com> com [mailto:msp430@yahoogroups. <mailto:msp430%40yahoogroups.com> com] On Behalf Of Claro Louie Sent: 17 July 2008 13:07 To: msp430@yahoogroups. <mailto:msp430%40yahoogroups.com> com Subject: SPAM-LOW: Re: [msp430] MSP430 + Zigbee or similar RF module? Hi Richard, Try the EZ430RF2480 kit from Ti. This includes the MSP430F2274 and a CC2480 Zigbee Processor.. This was also suggested to me by Alonso ( also from msp groups). cheers, Claro ----- Original Message ---- From: Richard (UK) <ymsp430@augmentics. <mailto:ymsp430%40augmentics.com> com> To: msp430@yahoogroups. <mailto:msp430%40yahoogroups.com> com Sent: Thursday, July 17, 2008 6:50:31 PM Subject: [msp430] MSP430 + Zigbee or similar RF module? Hi, Does anyone know of a chip or module with a Zigbee style RF unit controlled by a MSP430? (I want to build a long life battery powered tiny RF tag similar to a PIC controlled tag I currently use for asset protection/tracking ) Thanks. [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] |
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Re: MSP430 + Zigbee or similar RF module? - OT, F5xxAny news/rumor about MSP430F5xx with on-chip radio?
BTW, I tried XMS430F5438 (without radio). The chip is more ready than the development tools. Any comment from others. --- In msp430@..., "Shoaib Javed" <sjaved@...> wrote: > > If low power consumption is the goal then two processor solution may not be > the best approach. > > Em250 or TI's 8051 / CC2420 based chip should do. > > > > SJ > > > > _____ > > From: msp430@... [mailto:msp430@...] On > keane > Sent: 17 July 2008 13:42 > To: msp430@... > Subject: [Norton AntiSpam] RE: SPAM-LOW: Re: [msp430] MSP430 + Zigbee or > similar RF module? > > > > Hi Richard > > I have used Embers Em260 with the Msp it provides a good spi > works perfectly. > > Regards > > ed > > _____ > > From: msp430@yahoogroups. <mailto:msp430%40yahoogroups.com> com > [mailto:msp430@yahoogroups. <mailto:msp430%40yahoogroups.com> com] > Of > Claro Louie > Sent: 17 July 2008 13:07 > To: msp430@yahoogroups. <mailto:msp430%40yahoogroups.com> com > Subject: SPAM-LOW: Re: [msp430] MSP430 + Zigbee or similar RF module? > > Hi Richard, > Try the EZ430RF2480 kit from Ti. This includes the MSP430F2274 and a CC2480 > Zigbee Processor.. This was also suggested to me by Alonso ( also from msp > groups). > cheers, > Claro > > ----- Original Message ---- > From: Richard (UK) <ymsp430@augmentics. <mailto:ymsp430%40augmentics.com> > com> > To: msp430@yahoogroups. <mailto:msp430%40yahoogroups.com> com > Sent: Thursday, July 17, 2008 6:50:31 PM > Subject: [msp430] MSP430 + Zigbee or similar RF module? > > Hi, > > Does anyone know of a chip or module with a Zigbee style RF unit controlled > by a MSP430? > > (I want to build a long life battery powered tiny RF tag similar to a PIC > controlled tag I currently use for asset protection/tracking ) > > Thanks. > > [Non-text portions of this message have been removed] > > [Non-text portions of this message have been removed] > > [Non-text portions of this message have been removed] > > > > > > [Non-text portions of this message have been removed] > |
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Re: MSP430 + Zigbee or similar RF module? - OT, F5xxiT MAY HAVE A COUPLE MORE PORTS, AND A WHOLE LOAD OF EXTRA MEMORY but
the 2MHz extra from the non-A version makes it barely worth the effort or risk in my opinion. i don't need lots of memory except for data logging, and for those systems i don't need lots of I/O, so the bigger part is a liability, I would be interested in a 256k flash part with 20 pins or 2 full ports in 28 pins, but really there is not much new and exciting about it for me. external memory is cheap, so the extra few bucks for the 543x is too much. the 32 bit multiplier might be nice for some apps, but, again, for me those are usually low pin count sensor stuff where some filtering is desirable. The 25MHz version might be interesting as an upgrade to my old MANIC design, but I'd rather see some interesting new peripherals, sure the RTC is nice, but it appears that the 32768kHz crystal mode now sucks 900uA MORE than the VLOor improvements to the old ones, like either or both edge triggering, triggering on more I/o ports, a programmable filter peripheral, even more accurate DCO without external crystal, RF of course, but much simpler than the CCxxxx parts, basically almost a UART with one or two config registers, how about improved current drive on at least a couple of pins, or a built in low power switcher as well as the LDO so that single cell operation is finally diretly available. To me this is still one of the major drawbacks of the MSP. Nice that the active current /MHz is down from 365uA on the 24xx parts to just 165uA on the 54xx parts, but then it gets screwed up by the low power mode currents. Taking 25C and the best possible value of PMMREV for the 54xx vs 25C and 3V Vcc in both cases the LMP3 current increases from a nominal 1.1uA in LPM3 with the 32768Hz crystal running to 2.6uA, a huge increase. using the VLO this jumps from 0.5 to 1.1uA. On Low Power systems this and the wake up time are the factors most critical to low mean current. It seems from this that the RTC_A is actually quite a liability power consumption wise, and we might be better off using the old interrupt method of maintaining a clock.And I guess someone somewhere likes the new LPM5, but i don't see the point, just power the damned thing down totally. What I'd rather see is an LPM4 like mode that has better wake up than just a switch on P1 or P2, or a forced reset via the watchdog timeout. How about a super low power mode with a programmable high value divider for the 32768Hz crystal (26xx style with low current raher than the power hungry RTC_A) that enabled wake up at much longer periods than the current system. Say programmable divide from 1 - 65536. This shouldn't draw any more current than the exising system, since it remains a simple binary divider, and allows wake up periods from 2 seconds (on timer overflow) to approximately a day and a half. Of course the CPU would get fed with the undivided clock signal on wake up. Anyway, as you can guess, for me this part is pretty unattractive, to the point where I'm not interested even in evaluating it physically. Al old_cow_yellow wrote: >Any news/rumor about MSP430F5xx with on-chip radio? > >BTW, I tried XMS430F5438 (without radio). The chip is more ready than >the development tools. Any comment from others. > >--- In msp430@..., "Shoaib Javed" <sjaved@...> wrote: > > >>If low power consumption is the goal then two processor solution may >> >> >not be > > >>the best approach. >> >>Em250 or TI's 8051 / CC2420 based chip should do. >> >> >> >>SJ >> >> >> >> _____ >> >>From: msp430@... [mailto:msp430@...] On >> >> >Behalf Of ed > > >>keane >>Sent: 17 July 2008 13:42 >>To: msp430@... >>Subject: [Norton AntiSpam] RE: SPAM-LOW: Re: [msp430] MSP430 + Zigbee or >>similar RF module? >> >> >> >>Hi Richard >> >>I have used Embers Em260 with the Msp it provides a good spi >> >> >interface and > > >>works perfectly. >> >>Regards >> >>ed >> >>_____ >> >>From: msp430@yahoogroups. <mailto:msp430%40yahoogroups.com> com >>[mailto:msp430@yahoogroups. <mailto:msp430%40yahoogroups.com> com] >> >> >On Behalf > > >>Of >>Claro Louie >>Sent: 17 July 2008 13:07 >>To: msp430@yahoogroups. <mailto:msp430%40yahoogroups.com> com >>Subject: SPAM-LOW: Re: [msp430] MSP430 + Zigbee or similar RF module? >> >>Hi Richard, >>Try the EZ430RF2480 kit from Ti. This includes the MSP430F2274 and a >> >> >CC2480 > > >>Zigbee Processor.. This was also suggested to me by Alonso ( also >> >> >from msp > > >>groups). >>cheers, >>Claro >> >>----- Original Message ---- >>From: Richard (UK) <ymsp430@augmentics. >> >> ><mailto:ymsp430%40augmentics.com> > > >>com> >>To: msp430@yahoogroups. <mailto:msp430%40yahoogroups.com> com >>Sent: Thursday, July 17, 2008 6:50:31 PM >>Subject: [msp430] MSP430 + Zigbee or similar RF module? >> >>Hi, >> >>Does anyone know of a chip or module with a Zigbee style RF unit >> >> >controlled > > >>by a MSP430? >> >>(I want to build a long life battery powered tiny RF tag similar to >> >> >a PIC > > >>controlled tag I currently use for asset protection/tracking ) >> >>Thanks. >> >>[Non-text portions of this message have been removed] >> >>[Non-text portions of this message have been removed] >> >>[Non-text portions of this message have been removed] >> >> >> >> >> >>[Non-text portions of this message have been removed] >> >> >> > > > >------------------------------------ > >To unsubscribe from the msp430 group, send an email to: >msp430-unsubscribe@... > >Yahoo! Groups Links > > > > > > > [Non-text portions of this message have been removed] |
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RE: RE: SPAM-LOW: Re: MSP430 + Zigbee or similar RF module?"Shoaib Javed" <sjaved@...>:
>> EM260 > Em250 How much current consumption does a zigbee endpoint need? What is the lowest possible value? Wakeup-time of 1 second would be ok for me. M. |
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RE: RE: RE: Re: MSP430 + Zigbee or similar RF module?On Em250 the current consumption while processor is working and the radio is
off is about 8mA With radio on it is about 36mA In sleep mode with internal RC timer on it is about 1uA (datasheet) With external 32KHz crystal it is 1.5uA (datasheet) In Router, Coordinator or a regular end device the 36mA current draw is the constant as the radio receiver is always turned on but in the Sleepy End device the radio receiver is turned on and off as required so it is not easy to say how much current the device will consume for a data transaction as the radio will be turned on and off by the zigbee stack and is not under applications control. Please see below for a current consumption profile of a Sleepy End Device from wake-up to collecting measurement data, to transmitting it, to checking for new messages with parent node and then going back to sleep. Current (mA) Duration (mS) 36 0.7 8.66 25 34.64 1.2 36 1.1 34.64 3 36 2.8 34.64 1 36 1.1 34.64 1 10.65 1 34.64 0.4 36 1.1 34.64 5.4 36 1 34.64 2.3 7.99 10 The first 25mS is taken while offline measurement and data collection was going on. Some of the time in the above table can be shaved off by changing the behaviour of the application. Regards, SJ _____ From: msp430@... [mailto:msp430@...] On Behalf Of Matthias Weingart Sent: 20 July 2008 11:23 To: msp430@... Subject: [msp430] RE: RE: SPAM-LOW: Re: MSP430 + Zigbee or similar RF module? "Shoaib Javed" <sjaved@wirelessmeas <mailto:sjaved%40wirelessmeasurement.com> urement.com>: >> EM260 > Em250 How much current consumption does a zigbee endpoint need? What is the lowest possible value? Wakeup-time of 1 second would be ok for me. M. [Non-text portions of this message have been removed] |
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RE: RE: RE: Re: MSP430 + Zigbee or similar RF module?Shoaib,
thank you for your detailed answer! So my conclusion is, zigbee is nothing for a low power device. With a custom radio protocol it is possible to level down the power requirement of a sleepy endpoint below 50uA or less - just a question how often the endpoint is in contact with the master, once per second for 100us is possible and will lower power consumption to 1/10000 of the trx current. I recall that zigbee was advertised as "very low power" radio. ;) M. "Shoaib Javed" <sjaved@...>: > On Em250 the current consumption while processor is working and the > radio is off is about 8mA > > With radio on it is about 36mA > > In sleep mode with internal RC timer on it is about 1uA (datasheet) > > With external 32KHz crystal it is 1.5uA (datasheet) > > > > In Router, Coordinator or a regular end device the 36mA current draw is > the constant as the radio receiver is always turned on but in the Sleepy > End device the radio receiver is turned on and off as required so it is > not easy to say how much current the device will consume for a data > transaction as the radio will be turned on and off by the zigbee stack > and is not under applications control. Please see below for a current > consumption profile of a Sleepy End Device from wake-up to collecting > measurement data, to transmitting it, to checking for new messages with > parent node and then going back to sleep. > > > > Current (mA) Duration (mS) > > 36 0.7 > > 8.66 25 > > 34.64 1.2 > > 36 1.1 > > 34.64 3 > > 36 2.8 > > 34.64 1 > > 36 1.1 > > 34.64 1 > > 10.65 1 > > 34.64 0.4 > > 36 1.1 > > 34.64 5.4 > > 36 1 > > 34.64 2.3 > > 7.99 10 > > > > The first 25mS is taken while offline measurement and data collection > was going on. Some of the time in the above table can be shaved off by > changing the behaviour of the application. > > > > Regards, > > SJ > > > > _____ > > From: msp430@... [mailto:msp430@...] On Behalf > Of Matthias Weingart > Sent: 20 July 2008 11:23 > To: msp430@... > Subject: [msp430] RE: RE: SPAM-LOW: Re: MSP430 + Zigbee or similar RF > module? > > > > "Shoaib Javed" <sjaved@wirelessmeas ><mailto:sjaved%40wirelessmeasurement.com> urement.com>: > >>> EM260 >> Em250 > > How much current consumption does a zigbee endpoint need? > What is the lowest possible value? Wakeup-time of 1 second > would be ok for me. > > M. > > > > > > [Non-text portions of this message have been removed] > > > ------------------------------------ > > To unsubscribe from the msp430 group, send an email to: > msp430-unsubscribe@... > > Yahoo! Groups Links > > > > > |
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RE: RE: RE: RE: Re: MSP430 + Zigbee or similar RF module?If think of point to point communication then probably you are right but if
you consider what you get in terms of Zigbee network (multiple hops , security, number of nodes in a network) then its different. If you trying to build star network then perhaps SimpliciTI is good as it is simple, open source, light weight, etc etc. The sleepy end device can remain asleep for days before making a contact with parent consuming only a micro amp. Though messages kept on the parent will timeout in a maximum of 30 seconds after. There is usually a mechanism for creating and sending a message to the sleepy child as it polls its parent and this mechanism can be used to keep deliver message to a child whose sleep periods are excessive. "very power radio" when the radio is on either RX or TX its takes 36mA and this for 3dbm output power. The CC2510 current consumption is also of the order of twenty or more milli amps with radio on. So essentially, the Radio on time should be minimized to prolong battery life which is only possible if the protocol is very simple and light weight or if the interval to poll the parent is adequate to give reasonable average power consumption. The profile I sent earlier had three application initiated poll messages to the parent (this will send out a message on the RF and then wait for a reply keeping the radio on) and one application message sent across one hop which meant that the end to end acknowledgment was not instant. The profile I sent is of a sensor which has approx 3.5 years operational life (ideal conditions) on a 2.4Ah battery at 30 seconds measurement reporting interval. Zigbee and SimliciTi are both useful depending upon application. Regards, SJ _____ From: msp430@... [mailto:msp430@...] On Behalf Of Matthias Weingart Sent: 21 July 2008 16:08 To: msp430@... Subject: [Norton AntiSpam] [msp430] RE: RE: RE: Re: MSP430 + Zigbee or similar RF module? Shoaib, thank you for your detailed answer! So my conclusion is, zigbee is nothing for a low power device. With a custom radio protocol it is possible to level down the power requirement of a sleepy endpoint below 50uA or less - just a question how often the endpoint is in contact with the master, once per second for 100us is possible and will lower power consumption to 1/10000 of the trx current. I recall that zigbee was advertised as "very low power" radio. ;) M. "Shoaib Javed" <sjaved@wirelessmeas <mailto:sjaved%40wirelessmeasurement.com> urement.com>: > On Em250 the current consumption while processor is working and the > radio is off is about 8mA > > With radio on it is about 36mA > > In sleep mode with internal RC timer on it is about 1uA (datasheet) > > With external 32KHz crystal it is 1.5uA (datasheet) > > > > In Router, Coordinator or a regular end device the 36mA current draw is > the constant as the radio receiver is always turned on but in the Sleepy > End device the radio receiver is turned on and off as required so it is > not easy to say how much current the device will consume for a data > transaction as the radio will be turned on and off by the zigbee stack > and is not under applications control. Please see below for a current > consumption profile of a Sleepy End Device from wake-up to collecting > measurement data, to transmitting it, to checking for new messages with > parent node and then going back to sleep. > > > > Current (mA) Duration (mS) > > 36 0.7 > > 8.66 25 > > 34.64 1.2 > > 36 1.1 > > 34.64 3 > > 36 2.8 > > 34.64 1 > > 36 1.1 > > 34.64 1 > > 10.65 1 > > 34.64 0.4 > > 36 1.1 > > 34.64 5.4 > > 36 1 > > 34.64 2.3 > > 7.99 10 > > > > The first 25mS is taken while offline measurement and data collection > was going on. Some of the time in the above table can be shaved off by > changing the behaviour of the application. > > > > Regards, > > SJ > > > > _____ > > From: msp430@yahoogroups. <mailto:msp430%40yahoogroups.com> com > Of Matthias Weingart > Sent: 20 July 2008 11:23 > To: msp430@yahoogroups. <mailto:msp430%40yahoogroups.com> com > Subject: [msp430] RE: RE: SPAM-LOW: Re: MSP430 + Zigbee or similar RF > module? > > > > "Shoaib Javed" <sjaved@wirelessmeas ><mailto:sjaved%40wirelessmeasurement.com> urement.com>: > >>> EM260 >> Em250 > > How much current consumption does a zigbee endpoint need? > What is the lowest possible value? Wakeup-time of 1 second > would be ok for me. > > M. > > > > > > [Non-text portions of this message have been removed] > > > ------------------------------------ > > To unsubscribe from the msp430 group, send an email to: > msp430-unsubscribe@ <mailto:msp430-unsubscribe%40egroups.com> egroups.com > > Yahoo! Groups Links > > > > > [Non-text portions of this message have been removed] |
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RE: RE: Re: MSP430 + Zigbee or similar RF module?Instead of a toy plugged into a USB port, we have a star network RF
prototyping system with handheld units that more resemble an actual application: http://www.softbaugh.com/ProductPage.cfm?strPartNo=MRF1611CC1100 These boards are hosted on interface boards: http://www.softbaugh.com/ProductPage.cfm?strPartNo=HMRF1611 We've also released a book on amazon about using and experimenting with this system. http://www.amazon.com/gp/redirect.html?ie=UTF8&location=http%3A%2F% 2Fwww.amazon.com%2FMSP430-RF-Applications-MRF1611CC1100-Reference% 2Fdp%2F0975475908%3Fie%3DUTF8%26s%3Dbooks%26qid%3D1214398172%26sr%3D8- 4&tag=softcom-20&linkCode=ur2&camp=1789&creative=9325 If that link doesn't work, then search amazon for MSP430 as one word, then look for our blue and white title. You can work through any of the exercises in the book with the free demo firmware we provide. Tom |
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