Secondly, the DRAWS Workstation, which is the HAT plus an SD Card, Raspberry Pi, and an optional metal case, which creates a self-contained unit. It has two mini DIN-6 audio sockets that match the ‘TNC’ specification found on many radios designed for amateur radio, an SMA connector for a powered GPS LNA antenna, power connection socket, and a small GPIO array for additional I/O. This is a purely hardware solution that puts several components that are useful for amateur radio projects on a single board namely a high-performance sound chip (CODEC), a GPS with pulse per second (PPS) that includes an embedded battery backed real-time clock (RTC), and a 12VDC power circuit to power the onboard devices and the Raspberry Pi from a single power supply. DRAWS is a platform with multiple components.įirst, it is a Raspberry Pi HAT. With patience (over 6 months) my Draws Hat has finally arrived from NW Digital Radio.
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