Difference between revisions of "CC1100/CC2500"

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[[Image:cc2500.gif|frame]]
 
[[Image:cc2500.gif|frame]]
  
−
The CC1100/CC1101/CC2500 radios are transceivers designed for very low-power wireless applications. The CC1100/CC1101 radios can operate at frequency bands 315, 433, 868, and 915 MHz. The CC2500 radio operates at 2.4 GHz.
+
The '''CC1100/CC1101/CC2500''' radios are transceivers designed for very low-power wireless applications. The CC1100/CC1101 radios can operate at frequency bands 315, 433, 868, and 915 MHz. The CC2500 radio operates at 2.4 GHz.
  
 
Dubbed project "Blaze" to encompass all of these radios types, this TinyOS development will continue pushing the boundaries of practical and efficient radio technology in wireless sensor networks.
 
Dubbed project "Blaze" to encompass all of these radios types, this TinyOS development will continue pushing the boundaries of practical and efficient radio technology in wireless sensor networks.
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= Platforms =
 
= Platforms =
  
 +
* [http://www.peoplepowerco.com/store/surf-developer-s-kit.html SuRF Developer's Kit featuring the CC430 System-on-a-Chip]
 
* [http://tinyos.cvs.sourceforge.net/*checkout*/tinyos/tinyos-2.x-contrib/blaze/tos/platforms/tmote2500/chips/ccxx00/HplCC2500PinsC.nc?revision=1.2&content-type=text%2Fplain Tmote2500 wiring description] - using a telosb/tmote + CC2500 or CC1100 eval module.
 
* [http://tinyos.cvs.sourceforge.net/*checkout*/tinyos/tinyos-2.x-contrib/blaze/tos/platforms/tmote2500/chips/ccxx00/HplCC2500PinsC.nc?revision=1.2&content-type=text%2Fplain Tmote2500 wiring description] - using a telosb/tmote + CC2500 or CC1100 eval module.
 +
 +
[[Image:small_tmote2500.jpg|frame|Tmote2500 Development Platform]]
  
 
= Radio Software =
 
= Radio Software =
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* [[CC1100/CC2500 Recent Updates]]
 
* [[CC1100/CC2500 Recent Updates]]
 
* [[CC1100/CC2500 Known Issues]]
 
* [[CC1100/CC2500 Known Issues]]
 +
* [http://sourceforge.net/cvs/?group_id=28656 SourceForge TinyOS CVS]
  
 
= Notes =
 
= Notes =
  
 
* [[CCxx00 Operating Frequencies]]
 
* [[CCxx00 Operating Frequencies]]
 +
* [[CCxx00 Wake-on Radio]]
  
 
* [http://www.ti.com/lit/gpn/cc1100 CC1100 Datasheet]
 
* [http://www.ti.com/lit/gpn/cc1100 CC1100 Datasheet]
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* [http://www.ti.com/lit/gpn/cc2500 CC2500 Datasheet]
 
* [http://www.ti.com/lit/gpn/cc2500 CC2500 Datasheet]
 
* [http://www.ti.com/litv/pdf/swrz002d CC2500 Errata]
 
* [http://www.ti.com/litv/pdf/swrz002d CC2500 Errata]
 +
 +
= Troubleshooting =
 +
 +
* [[New CCxx00 Platforms Troubleshooter]]
  
 
= Radio Comparisons =
 
= Radio Comparisons =
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{| class="wikitable" style="text-align:center" border="1"  
 
{| class="wikitable" style="text-align:center" border="1"  
−
|+CC2420 vs. CC1100 vs. CC2500
+
|+CC1100 vs. CC2500 vs. [[CC2420]] vs. AT86RF230
 
|-
 
|-
−
!  !! CC1100 !! CC2500 !! CC2420
+
!  !! CC1100 !! CC2500 !! CC2420 !! AT86RF230
 
|-
 
|-
 
! Throughput
 
! Throughput
−
| '''1.2-500 kbps''' || '''1.2-500 kbps''' || 250 kbps
+
| '''1.2-500 kbps''' || '''1.2-500 kbps''' || 250 kbps || 250 kbps
 
|-
 
|-
 
! Frequencies
 
! Frequencies
−
| 315/433/915 MHz || 2.4 GHz || 2.4 GHz
+
| 315/433/915 MHz || 2.4 GHz || 2.4 GHz || 2.4 GHz
 
|-
 
|-
 
! Rx Current
 
! Rx Current
−
| 14 mA || '''12.8 mA''' || 19.7 mA
+
| 14 mA || '''12.8 mA''' || 19.7 mA || 15.5 mA
 
|-
 
|-
 
! Tx Current
 
! Tx Current
−
| '''15 mA''' || 21.6 mA || 17.4 mA
+
| '''15 mA''' || 21.6 mA || 17.4 mA || 16.5 mA
 
|-
 
|-
 
! Output Power
 
! Output Power
−
| '''+10 dBm''' || +1 dBm || +0 dBm
+
| '''+10 dBm''' || +1 dBm || +0 dBm || +3 dBm
 
|-
 
|-
 
! Receiver Sensitivity
 
! Receiver Sensitivity
−
| '''-111 dBm''' || -104 dBm || -95 dBm
+
| '''-111 dBm''' || -104 dBm || -95 dBm || -101 dBm
 
|-
 
|-
 
! Modulation
 
! Modulation
−
| 2-FSK/GFSK/MSK/OOK/ASK || 2-FSK/GFSK/MSK/OOK/ASK || DSSS
+
| 2-FSK/GFSK/MSK/OOK/ASK || 2-FSK/GFSK/MSK/OOK/ASK || DSSS || DSSS
 
|-
 
|-
 
! Packaging
 
! Packaging
−
| '''20QFN 4×4 mm''' || '''20QFN 4×4 mm''' || QLP-48 7×7 mm
+
| '''20QFN 4×4 mm''' || '''20QFN 4×4 mm''' || QLP-48 7×7 mm || QLP-32 5×5 mm
 
|-
 
|-
 
! Encryption
 
! Encryption
−
| None || None || '''AES-128'''
+
| None || None || '''AES-128''' || None
 
|-
 
|-
 
! Current Low Power Implementations
 
! Current Low Power Implementations
−
| WoR/B-MAC || WoR/B-MAC || BoX-MAC-2
+
| '''Wake-on Radio/ XMAC / BMAC / BoX-1 / BoX-2''' || '''Wake-on Radio / XMAC / BMAC / BoX-1 / BoX-2''' || BoX-MAC-2 || unknown
 
|-
 
|-
 
! Experimental Range ''on the ground''
 
! Experimental Range ''on the ground''
−
| '''700-800 ft''' (315 MHz) || unknown || 10-20 ft
+
| '''700-800 ft''' (315 MHz) || unknown || 10-20 ft || unknown
 
|}
 
|}
  
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=== Drivers ===
 
=== Drivers ===
−
The CC1100/CC1101/CC2500 radios are pin and driver compatible.  Dual-radio platforms are easily achievable.
+
The CC1100/CC1101/CC2500 radios are pin and driver compatible.  Dual-radio platforms are easily achievable, and exist today.
  
 
=== Range vs. Frequency ===
 
=== Range vs. Frequency ===
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The lower the frequency, the larger the antenna.  The 2.4 GHz radios, CC2500 and CC2420, require the smallest antenna.
 
The lower the frequency, the larger the antenna.  The 2.4 GHz radios, CC2500 and CC2420, require the smallest antenna.
 +
 +
=== Frequency vs. Throughput ===
 +
 +
There is no correlation between frequency and throughput on any of these radios.  The CC1100 radio at 315 MHz can transmit at 500 kbps, while the CC2420 at 2.4 GHz always transmits at 256 kbps.
  
 
=== Throughput vs. Current Consumption ===
 
=== Throughput vs. Current Consumption ===
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=== Throughput vs. Range ===
 
=== Throughput vs. Range ===
  
−
The CC1100 and CC2500 can decrease their throughput to achieve longer range.  With the CC1100 radio at 315 MHz, for example, we've achieved a maximum of ~700-800 feet transmission range ''on the ground''.
+
The CC1100 and CC2500 can decrease their throughput to achieve longer range.  With the CC1100 radio at 315 MHz, for example, we've achieved a maximum of ~700-800 feet transmission range ''on the ground'' at 500 kbps.  If we were to decrease the data throughput, that would increase radio sensitivity and therefore achieve longer range.
  
 
=== Accessories ===
 
=== Accessories ===
  
−
* The CC2420 includes hardware AES-128 encryption. This is overkill: 64-bit encryption would have performed just as well given the constraints of WSN's.
+
The CC1100 and CC2500 include hardware Wake-on-Radio (low power listening) functionality. Your microcontroller can completely go to sleep while your radio duty cycles in the background. ''Note: it is a considered opinion that bugs present on the CCXX00 silicon prevent this as a reliable operation in current capabilities.  This is an active area of research.''
−
* The CC2420 radio is intended for 802.15.4 compatibility. You really have to ask yourself if that's worth it: the CCxx00 radio stack was designed to eliminate false acknowledgments and other problems that plague 802.15.4.
+
 
−
* The CC1100 and CC2500 include hardware Wake-on-Radio (low power listening) functionality.
+
[[Category:Transceivers]]
 +
[[Category:CC1100-CC1101-CC2500]]

Latest revision as of 19:59, 2 August 2010

Cc2500.gif

The CC1100/CC1101/CC2500 radios are transceivers designed for very low-power wireless applications. The CC1100/CC1101 radios can operate at frequency bands 315, 433, 868, and 915 MHz. The CC2500 radio operates at 2.4 GHz.

Dubbed project "Blaze" to encompass all of these radios types, this TinyOS development will continue pushing the boundaries of practical and efficient radio technology in wireless sensor networks.


Platforms

Tmote2500 Development Platform

Radio Software

Drivers for TinyOS are open-source and are located in the tinyos-2.x-contrib/blaze repository.

Notes

Troubleshooting

Radio Comparisons

Side-by-side Performance

CC1100 vs. CC2500 vs. CC2420 vs. AT86RF230
CC1100 CC2500 CC2420 AT86RF230
Throughput 1.2-500 kbps 1.2-500 kbps 250 kbps 250 kbps
Frequencies 315/433/915 MHz 2.4 GHz 2.4 GHz 2.4 GHz
Rx Current 14 mA 12.8 mA 19.7 mA 15.5 mA
Tx Current 15 mA 21.6 mA 17.4 mA 16.5 mA
Output Power +10 dBm +1 dBm +0 dBm +3 dBm
Receiver Sensitivity -111 dBm -104 dBm -95 dBm -101 dBm
Modulation 2-FSK/GFSK/MSK/OOK/ASK 2-FSK/GFSK/MSK/OOK/ASK DSSS DSSS
Packaging 20QFN 4×4 mm 20QFN 4×4 mm QLP-48 7×7 mm QLP-32 5×5 mm
Encryption None None AES-128 None
Current Low Power Implementations Wake-on Radio/ XMAC / BMAC / BoX-1 / BoX-2 Wake-on Radio / XMAC / BMAC / BoX-1 / BoX-2 BoX-MAC-2 unknown
Experimental Range on the ground 700-800 ft (315 MHz) unknown 10-20 ft unknown

Trades

Drivers

The CC1100/CC1101/CC2500 radios are pin and driver compatible. Dual-radio platforms are easily achievable, and exist today.

Range vs. Frequency

The lower the frequency, the longer the range. The CC1100 sports the lowest frequency.

Frequency vs. Antenna Size

The lower the frequency, the larger the antenna. The 2.4 GHz radios, CC2500 and CC2420, require the smallest antenna.

Frequency vs. Throughput

There is no correlation between frequency and throughput on any of these radios. The CC1100 radio at 315 MHz can transmit at 500 kbps, while the CC2420 at 2.4 GHz always transmits at 256 kbps.

Throughput vs. Current Consumption

The higher the throughput, the less energy it takes to transmit the data. In terms of raw throughput, the CC1100 and CC2500 can be more energy efficient than the fixed-rate throughput of the CC2420. However, at a lower throughputs, the maximum current consumption decreases. Although the maximum current consumption decreases (helping you match to a particular battery better), the total energy consumption increases because it takes longer to send the same amount of data.

Throughput vs. Range

The CC1100 and CC2500 can decrease their throughput to achieve longer range. With the CC1100 radio at 315 MHz, for example, we've achieved a maximum of ~700-800 feet transmission range on the ground at 500 kbps. If we were to decrease the data throughput, that would increase radio sensitivity and therefore achieve longer range.

Accessories

The CC1100 and CC2500 include hardware Wake-on-Radio (low power listening) functionality. Your microcontroller can completely go to sleep while your radio duty cycles in the background. Note: it is a considered opinion that bugs present on the CCXX00 silicon prevent this as a reliable operation in current capabilities. This is an active area of research.

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