https://wiki.jw-tech.eu/index.php?action=history&feed=atom&title=WSAL13460_%E2%80%93_GSM_%E2%80%93_GPRS_%E2%80%93_GNSS_HAT%2Fen 2026-10-23T23:04:12Z Versionsgeschichte dieser Seite in JW Tech Wiki MediaWiki 1.43.9 https://wiki.jw-tech.eu/index.php?title=WSAL13460_%E2%80%93_GSM_%E2%80%93_GPRS_%E2%80%93_GNSS_HAT/en&diff=1606&oldid=prev 2026-09-05T22:33:16Z

<p>Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex</p> <p><b>Neue Seite</b></p><div>__NOINDEX__<br /> &#039;&#039;&#039;Documentation notice:&#039;&#039;&#039; 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 Waveshare GSM/GPRS/GNSS HAT adds 2G telephony, GPRS data and GNSS positioning to a Raspberry Pi. It is compatible with Raspberry Pi 4B/3B/2B/Zero/Zero W.<br /> <br /> == Related products at JW Tech ==<br /> * [https://shop.jw-tech.eu/p/WSAL13460 WSAL13460 – GSM/GPRS/GNSS/Bluetooth HAT for Raspberry Pi]<br /> <br /> == Technical overview ==<br /> * Base module: SIM868 (Simcom), a pure 2G module without 3G/4G support<br /> * Compatibility: Raspberry Pi 4B, 3B, 2B, Zero, Zero W<br /> * Interfaces: USB-to-UART connection; optional use of the Raspberry Pi USB port by setting the jumper to position A (on Pi 4B use the USB 3.0 port)<br /> * Power control switch: The new HAT allows program-controlled on/off via pin P4; older versions only via button<br /> * GNSS function: The RTC battery is exclusively for GNSS warm start, not for storing time or parameters<br /> * Headset connector: 4-pin national standard (OMTP); US standard CTIA may cause malfunction<br /> * Prerequisite for operation: Availability of a 2G network in the deployment area and a SIM card from an operator that still runs 2G<br /> * Documentation: Available resources include user manual, schematic, source code, PWRKEY script, 3D drawing and firmware upgrade tool<br /> <br /> == Notes and version constraints ==<br /> * No AT commands are explicitly listed in the source document – the command list must be taken from the SIM800 Series AT Command Manual<br /> * APN configuration: Depending on the carrier, APN, username and password may need to be set; exact values depend on the operator<br /> * Network registration fails although the SIM works in a phone: check whether the SIM actually supports GSM services<br /> * Power supply: If it fails, verify that the power source delivers 5 V and that the USB cable actually provides 5 V<br /> * Antenna orientation: point the antenna outward, otherwise no registration is possible<br /> * Version-specific: program-controlled on/off is only available on the newer HAT version; older versions only via button<br /> * US market: the source cites e.g. T-Mobile as a supported carrier – to be verified locally<br /> <br /> == Source and revision record ==<br /> * [https://www.waveshare.com/wiki/GSM/GPRS/GNSS_HAT GSM/GPRS/GNSS HAT - Waveshare Wiki]<br /> * Source revision: 90554<br /> * Captured: 2026-08-30T03:47:08+00:00<br /> * SHA-256: &lt;code&gt;3ed788397d21a50084a3e2627b30eee808edb82348648b53c9ddeb849a333396&lt;/code&gt;</div>

JWTechPublisher