The PiloT® is a WAN communications board which provides a 3G / HSPA wireless interface for the Raspberry Pi. The PiloT® features an on-board Sierra Wireless HL Series module teamed with a SIM card of the user’s choice, as well as a GNSS* solution, which is used to provide location and time information.
The PiIoT® is able to communicate with the Raspberry Pi using serial or USB communications, with separate channels for control, data and location data. It can be powered by the Raspberry Pi, or a separate power supply can be used.
When used in CDC-ECM mode over USB, the PiIoT® presents as an Ethernet-like WAN device, simplifying control of data sessions. In this mode, PPP is not required; a simple command initiates the session. The PiIoT® can also be used to transfer data to the Sierra Wireless AirVantage® service using MQTT from a Raspberry Pi; offering a rapidly deployable device-to-cloud architecture.
Two different variants of the PiloT® are currently available – the HL8518, which provides a 3G / HSPA connection for the European market, and the HL8548-G, which caters to the global market, and provides a GNSS engine, which is based on SiRF V technology. GNSS data can be transferred over serial or USB interfaces, providing accurate location information for your application. It can also be used to provide accurate time.
The PiIoT® uses a small number of I/Os; the remainder are passed through on the 40-pin headers for use by other applications. Simple AT commands are used to control and monitor sessions on the Sierra Wireless HL Series module.
The PiloT® is compatible with the Raspberry Pi 2, 3 and Zero, and can also be used in standalone mode to provide communications to other development boards.