WSAL20681 – SIM7000G NB-IoT HAT/en
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.
Summary
The SIM7000G is a global NB-IoT/Cat-M/EDGE/GPRS HAT for Raspberry Pi, with GNSS capability and worldwide band support.
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Technical overview
- Compatible with Raspberry Pi 2B/3B/3B+/Zero W
- Supports NB-IoT, Cat-M, EDGE and GPRS across the global spectrum
- Connects via the Raspberry Pi's serial (UART) interface
- GNSS reception requires an external GPS antenna and clear sky visibility
- To access the NB-IoT network, set parameters CNMP=38, CMNB=2, and NBSC=1
- The device supports various protocols: MQTT, HTTP(S), FTP, NTP, PING, TCPIP, SSL, SAT, and FOTA
- Firmware can be updated using the 'sim7000 qdl v1.43' tool; administrator privileges are required
- There are two schematic versions: before May 1, 2021, and after
Commands and examples – verify before use:
AT+CNMP=38
AT+CMNB=2
AT+NBSC=1
Notes and version constraints
- Exact compatibility list for all Pi models must be confirmed by the manufacturer
- GPS data reception does not work on rainy days or without clear sky visibility
- PSM-mode power consumption was not fully explained in the source; measured ~700 uA vs theoretical 6 uA remains unexplained
- Firmware updates often fail due to poor USB cables or missing drivers; exact resolution steps require manual verification
- Compilation error of the BCM2835 library is resolved with 'autoreconf -vfi'; exact steps are version-sensitive
Source and revision record
- SIM7000X NB-IoT HAT - Waveshare Wiki
- Source revision: 106107
- Captured: 2026-09-02T04:12:26+00:00
- SHA-256:
dd8cbf8012094b17e512ed479afbe37eecc0426a020e38302d354c610f09764e