get sensor and NMEA data from indicator. Will test tomorrow, don't merge yet.

src/gps/FakeUART.cpp

@@ -0,0 +1,90 @@
+#include "FakeUART.h"
+
+FakeUART::FakeUART() {}
+
+void FakeUART::begin(unsigned long baud, uint32_t config, int8_t rxPin, int8_t txPin, bool invert, unsigned long timeout_ms,
+                     uint8_t rxfifo_full_thrhd)
+{
+    baudrate = baud;
+    FakeBuf.clear();
+}
+
+void FakeUART::end()
+{
+    FakeBuf.clear();
+}
+
+int FakeUART::available()
+{
+    return FakeBuf.size();
+}
+
+int FakeUART::peek()
+{
+    unsigned char ret;
+    if (FakeBuf.peek(ret))
+        return ret;
+    return -1;
+}
+
+int FakeUART::read()
+{
+    unsigned char ret;
+    if (FakeBuf.pop(ret))
+        return ret;
+    return -1;
+}
+
+void FakeUART::flush()
+{
+    FakeBuf.clear();
+}
+
+uint32_t FakeUART::baudRate()
+{
+    return baudrate;
+}
+
+void FakeUART::updateBaudRate(unsigned long speed)
+{
+    baudrate = speed;
+}
+
+size_t FakeUART::setRxBufferSize(size_t size)
+{
+    return size;
+}
+
+size_t FakeUART::write(const char *buffer)
+{
+    return write((char *)buffer, strlen(buffer));
+}
+
+size_t FakeUART::write(uint8_t *buffer, size_t size)
+{
+    return write((char *)buffer, size);
+}
+
+size_t FakeUART::write(char *buffer, size_t size)
+{
+    meshtastic_InterdeviceMessage message = meshtastic_InterdeviceMessage_init_zero;
+    if (size > sizeof(message.data.nmea)) {
+        size = sizeof(message.data.nmea); // Truncate if buffer is too large
+    }
+    memcpy(message.data.nmea, buffer, size);
+    sensecapIndicator.send_uplink(message);
+    return size;
+}
+
+size_t FakeUART::stuff_buffer(const char *buffer, size_t size)
+{
+    // push buffer in a loop to FakeBuf
+    for (size_t i = 0; i < size; i++) {
+        if (!FakeBuf.push(buffer[i])) {
+            return i;
+        }
+    }
+    return size;
+}
+
+FakeUART *FakeSerial;