diff --git a/ESP-IDF_Robot/build/.ninja_lock b/ESP-IDF_Robot/build/.ninja_lock
new file mode 100644
index 000000000..e69de29bb
diff --git a/ESP-IDF_Robot/build/CMakeFiles/git-data/head-ref b/ESP-IDF_Robot/build/CMakeFiles/git-data/head-ref
index fe4d5f7e2..2b3dedfde 100644
--- a/ESP-IDF_Robot/build/CMakeFiles/git-data/head-ref
+++ b/ESP-IDF_Robot/build/CMakeFiles/git-data/head-ref
@@ -1 +1 @@
-3211d7b655f8e01e0c1b2ab01fc1305ceee26535
+49f824f80a7d7ea7792e3c9bfaf4ec58507f628c
diff --git a/ESP-IDF_Robot/main/rc.h b/ESP-IDF_Robot/main/rc.h
index 1f60fce15..6e0e47206 100644
--- a/ESP-IDF_Robot/main/rc.h
+++ b/ESP-IDF_Robot/main/rc.h
@@ -24,6 +24,8 @@ adc_cali_handle_t adc1_cali_chan0_handle, adc1_cali_chan1_handle;
 adc_oneshot_unit_handle_t adc1_handle;
 bool do_calibration1_chan0, do_calibration1_chan1;
 
+static int interpolate_raw_val (int raw);
+
 static esp_err_t rc_adc_init (void) {
     
     adc_oneshot_unit_init_cfg_t init_config1 = {