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NB-IoT (Narrow Band-Internet of Things)
technology is a new IoT technical branch and supports cellular
data network connection of
low power consumption device in WAN (Wide Area Network), which also called as LPWAN. NB-IoT operates in authorized frequency spectrum. It can be directly deployed to GSM, UMTS, LTE without any interference of current networks, while the bandwidth consumption is just about 180KHz.
The SIM7000 series Arduino NB-IoT/LTE/GPRS expansion shields are wireless communication modules produced by DFRobot and the design is based on SIMCom SIM7000. This wireless communication module is designed for Arduino controllers, supporting multi-frequency LTE-FDD communication, dual-frequency GPRS/EDGE communication, NB-IoT communication. No matter prototype developments or small-batch productions, the SIM7000 expansion shield is the best solution to applications of low power consumption, low latency and meddle-throughput. Besides, with onboard GNSS (Global Navigation Satellite System), SIM7000 supports American GPS, Russian GLONASS, European Galileo, Japanese QZSS and Chinese BeiDou Navigation Satellite System. It can be widely applied to IoT applications such as long-distance control, moving tracking, long distance data uploading and shared bikes.
The SIM7000 NB-IoT/LTE/GPRS expansion shield supports both SIM card and NB-IoT card synchronously.
| Product | SIM7000E | SIM7000A | SIM7000C | |
| Form factor | 24*24*2.6 | 24*24*2.6 | 24*24*2.6 | |
|
Frequency
Bands
|
Cat-M | B3/B5/B8/B20/B28 | B2/B4/B12/B13 | B1/B3/B5/B8 |
| Cat-NB | B3/B5/B8/B20/B28 | B2/B4/B12/B13 | B1/B3/B5/B8 | |
| GSM | 900/1800MHz | 900/1800MHz | ||
| Temperature GNSS | -40℃ ~ +85℃ optional | -40℃ ~ +85℃ optional | -40℃ ~ +85℃ optional | |
| Electrical Features | ||||
| Supply Voltage Range(V) | 3.0~ 4.3 | 3.0~ 4.3 | 3.0~ 4.3 | |
|
Power
Consumption
|
Power Off(uA) | 7 | 7 | 7 |
| PSM(uA) | 9 | 9 | 9 | |
| Sleep(mA) | 1 | 1 | 1 | |
| Idle(mA) | 11 | 11 | 11 | |
| Data Transfer | ||||
| Cat-M(Kbps) | 300(DL)/375(UL) | 300(DL)/375(UL) | 300(DL)/375(UL) | |
| Cat-NB(Kbps) | 34(DL)/66(UL) | 34(DL)/66(UL) | 34(DL)/66(UL) | |
| EGPRS(Kbps) | 85.6(DL)/85.6(UL) | 85.6(DL)/85.6(UL) | ||
| Software Features | ||||
| Protocol | TCP/UDP/LWM2M/COAP/MQTT/ FTP/HTTP/TLS/DTLS/NTP | TCP/UDP/LWM2M/COAP/MQTT/ FTP/HTTP/TLS/DTLS/NTP | TCP/UDP/LWM2M/ COAP/MQTT/FTP/ HTTP/TLS/ DTLS/NTP | |
| FOTA | ● | ● | ● | |
| Embedded AT | ● | ● | ● | |
| Firmware Upgrade | USB/FOTA | USB/FOTA | USB/FOTA | |
| Interfaces | ||||
| SIM Card | 1.8V/3.0V | 1.8V/3.0V | 1.8V/3.0V | |
| UART | ● | ● | ● | |
| USB | ● | ● | ● | |
| PCM | ● | ● | ● | |
| ADC | ● | ● | ● | |
| I2C | ● | ● | ● | |
| Certification | ||||
| Regulatory |
RoHS\REACH\IMDA\RCM\Telstra \Spark\CE(RED)\GCF\Deutsche Telekom\Vodafone\RCM |
RoHS\REACH\GCF\FCC \PTCRB\AT&T\Verizon\IC |
RoHS\REACH\CCC\CTA \SRRC\Mobile\Unicom\Telecom |
|
| Carrier | TELSTRA/VDF*/ORANGE*/TIM*/ GCF/Deutsche Telekom |
AT&T/VERIZON/ROGERS */PTCRB/GCF |
CMCC/CUCC/CT | |
