UI: battery indicator, boot screen, radio settings

examples/companion_radio/NodePrefs.h

@@ -0,0 +1,22 @@
+#ifndef NODE_PREFS_H
+#define NODE_PREFS_H
+
+#include <cstdint> // For uint8_t, uint32_t
+
+struct NodePrefs {  // persisted to file
+  float airtime_factor;
+  char node_name[32];
+  double node_lat, node_lon;
+  float freq;
+  uint8_t sf;
+  uint8_t cr;
+  uint8_t reserved1;
+  uint8_t manual_add_contacts;
+  float bw;
+  uint8_t tx_power_dbm;
+  uint8_t unused[3];
+  float rx_delay_base;
+  uint32_t ble_pin;
+};
+
+#endif // NODE_PREFS_H