Source: OURphone Is a Fully Open Source Smartphone Based on Linux
Summary
Evan Robinson developed a customizable OURphone using a Raspberry Pi 3 Model B, a Waveshare SIM7600G-H 4G HAT, and a 4-inch 480×800 HDMI screen from Waveshare. Robinson wrote Python and shell scripts to enable and configure the features such as calling, messaging, GPS, and more.
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