https://wiki.jw-tech.eu/index.php?action=history&feed=atom&title=WSAL20681_%E2%80%93_SIM7000G_NB-IoT_HAT%2FenWSAL20681 – SIM7000G NB-IoT HAT/en - Versionsgeschichte2026-10-23T21:20:21ZVersionsgeschichte dieser Seite in JW Tech WikiMediaWiki 1.43.9https://wiki.jw-tech.eu/index.php?title=WSAL20681_%E2%80%93_SIM7000G_NB-IoT_HAT/en&diff=1478&oldid=prevJWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex2026-09-05T22:30:43Z<p>Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex</p>
<p><b>Neue Seite</b></p><div>__NOINDEX__<br />
'''Documentation notice:''' This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.<br />
<br />
== Summary ==<br />
The SIM7000G is a global NB-IoT/Cat-M/EDGE/GPRS HAT for Raspberry Pi, with GNSS capability and worldwide band support.<br />
<br />
== Related products at JW Tech ==<br />
* [https://shop.jw-tech.eu/p/WSAL20681 WSAL20681 – SIM7000G NB-IoT / Cat-M / EDGE / GPRS HAT for Raspberry Pi, GNSS, Global Band Support]<br />
<br />
== Technical overview ==<br />
* Compatible with Raspberry Pi 2B/3B/3B+/Zero W<br />
* Supports NB-IoT, Cat-M, EDGE and GPRS across the global spectrum<br />
* Connects via the Raspberry Pi's serial (UART) interface<br />
* GNSS reception requires an external GPS antenna and clear sky visibility<br />
* To access the NB-IoT network, set parameters CNMP=38, CMNB=2, and NBSC=1<br />
* The device supports various protocols: MQTT, HTTP(S), FTP, NTP, PING, TCPIP, SSL, SAT, and FOTA<br />
* Firmware can be updated using the 'sim7000 qdl v1.43' tool; administrator privileges are required<br />
* There are two schematic versions: before May 1, 2021, and after<br />
<br />
'''Commands and examples – verify before use:''' <br />
<syntaxhighlight lang="text"><br />
AT+CNMP=38<br />
AT+CMNB=2<br />
AT+NBSC=1<br />
</syntaxhighlight><br />
<br />
== Notes and version constraints ==<br />
* Exact compatibility list for all Pi models must be confirmed by the manufacturer<br />
* GPS data reception does not work on rainy days or without clear sky visibility<br />
* PSM-mode power consumption was not fully explained in the source; measured ~700 uA vs theoretical 6 uA remains unexplained<br />
* Firmware updates often fail due to poor USB cables or missing drivers; exact resolution steps require manual verification<br />
* Compilation error of the BCM2835 library is resolved with 'autoreconf -vfi'; exact steps are version-sensitive<br />
<br />
== Source and revision record ==<br />
* [https://www.waveshare.com/wiki/SIM7000G_NB-IoT_HAT SIM7000X NB-IoT HAT - Waveshare Wiki]<br />
* Source revision: 106107<br />
* Captured: 2026-09-02T04:12:26+00:00<br />
* SHA-256: <code>dd8cbf8012094b17e512ed479afbe37eecc0426a020e38302d354c610f09764e</code></div>JWTechPublisher