diff --git a/firmware/util/math/avg_values.cpp b/firmware/util/math/avg_values.cpp
deleted file mode 100644
index 17d78c3e8d..0000000000
--- a/firmware/util/math/avg_values.cpp
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * avg_values.c
- *
- * @date Jul 23, 2013
- * @author Andrey Belomutskiy, (c) 2012-2020
- */
-
-#include "avg_values.h"
-#include <math.h>
-
-void avgFill(AvgTable *table, int count, float value) {
-	for (int i = 0; i < AVG_TAB_SIZE; i++) {
-		for (int j = 0; j < AVG_TAB_SIZE; j++) {
-			table->counts[i][j] = count;
-			table->values[i][j] = value;
-		}
-	}
-}
-
-void avgReset(AvgTable *table) {
-	avgFill(table, 0, 0);
-}
-
-void avgAddValue(AvgTable *table, int rpm, float key, float value) {
-  if (rpm >= MAX_RPM || key >= MAX_KEY) {
-		return;
-        }
-	int i = (int)(AVG_TAB_SIZE * rpm / MAX_RPM);
-	int j = (int)(AVG_TAB_SIZE * key / MAX_KEY);
-
-	table->values[i][j] += value;
-	table->counts[i][j]++;
-}
-
-float avgGetValueByIndexes(AvgTable *table, int i, int j) {
-	int count = table->counts[i][j];
-	if (count == 0) {
-		return NAN;
-        }
-	return table->values[i][j] / count;
-}
-
-float avgGetValue(AvgTable *table, int rpm, float key) {
-  if (rpm >= MAX_RPM || key >= MAX_KEY) {
-		return NAN;
-  }
-	int i = (int)(AVG_TAB_SIZE * rpm / MAX_RPM);
-	int j = (int)(AVG_TAB_SIZE * key / MAX_KEY);
-	return avgGetValueByIndexes(table, i, j);
-}
-
-int avgGetValuesCount(AvgTable *table, int rpm, float key) {
-  if (rpm >= MAX_RPM || key >= MAX_KEY) {
-		return 0;
-  }
-	int i = (int)(AVG_TAB_SIZE * rpm / MAX_RPM);
-	int j = (int)(AVG_TAB_SIZE * key / MAX_KEY);
-
-	return table->counts[i][j];
-}
diff --git a/firmware/util/math/avg_values.h b/firmware/util/math/avg_values.h
deleted file mode 100644
index c7e4133662..0000000000
--- a/firmware/util/math/avg_values.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * avg_values.h
- *
- * @date Jul 23, 2013
- * @author Andrey Belomutskiy, (c) 2012-2020
- */
-
-#pragma once
-
-#define AVG_TAB_SIZE 48
-
-#define MAX_RPM 8000
-#define MAX_KEY 5
-
-typedef struct {
-	float values[AVG_TAB_SIZE][AVG_TAB_SIZE];
-	int counts[AVG_TAB_SIZE][AVG_TAB_SIZE];
-} AvgTable;
-
-
-void avgReset(AvgTable *table);
-void avgFill(AvgTable *table, int count, float value);
-
-void avgAddValue(AvgTable *table, int rpm, float key, float value);
-float avgGetValueByIndexes(AvgTable *table, int i, int j);
-float avgGetValue(AvgTable *table, int rpm, float key);
-int avgGetValuesCount(AvgTable *table, int rpm, float key);
diff --git a/firmware/util/math/signal_filtering.c b/firmware/util/math/signal_filtering.c
deleted file mode 100644
index 3b8454954b..0000000000
--- a/firmware/util/math/signal_filtering.c
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * @file signal_filtering.c
- *
- * @date Aug 5, 2013
- * @author Andrey Belomutskiy, (c) 2012-2020
- */
-
-#ifndef SIGNAL_FILTERING_C_
-#define SIGNAL_FILTERING_C_
-
-#include "signal_filtering.h"
-
-void sfInit(SignalFiltering *fs, float K, float initialValue) {
-	fs->pointer = 0;
-	fs->K = K;
-	fs->Vout = initialValue;
-	fs->Vacc = initialValue * K;
-}
-
-static void addCopyAndSort(SignalFiltering *fs, float value) {
-	fs->values[fs->pointer] = value;
-	fs->pointer = ++fs->pointer == FILTER_SIZE ? 0 : fs->pointer;
-
-	copyArray(fs->sorted, fs->values);
-
-	for (int i = 0; i < FILTER_SIZE; i++)
-		for (int j = i + 1; j < FILTER_SIZE; j++)
-			if (fs->sorted[i] < fs->sorted[j]) {
-				float temp = fs->sorted[i];
-				fs->sorted[i] = fs->sorted[j];
-				fs->sorted[j] = temp;
-			}
-}
-
-void sfAddValue(SignalFiltering *fs, float value) {
-	addCopyAndSort(fs, value);
-	float Vin = fs->sorted[FILTER_SIZE / 2];
-
-	fs->Vacc += Vin - fs->Vout;
-	fs->Vout = fs->Vacc / fs->K;
-}
-
-void sfAddValue2(SignalFiltering *fs, float value) {
-	addCopyAndSort(fs, value);
-
-	int fromIndex = FILTER_SIZE / 4;
-	int toIndex = FILTER_SIZE / 4 + FILTER_SIZE / 2;
-
-	/**
-	 * this implementation takes the average of the middle hald of the sorted values
-	 */
-	float result = 0;
-	for (int i = fromIndex; i < toIndex; i++)
-		result += fs->sorted[i];
-
-	fs->Vout = result / (FILTER_SIZE / 2);
-}
-
-float sfGetValue(SignalFiltering *fs) {
-	return fs->Vout;
-}
-
-#endif /* SIGNAL_FILTERING_C_ */
diff --git a/firmware/util/math/signal_filtering.h b/firmware/util/math/signal_filtering.h
deleted file mode 100644
index 01df176e19..0000000000
--- a/firmware/util/math/signal_filtering.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * @file signal_filtering.h
- *
- * @date Aug 5, 2013
- * @author Andrey Belomutskiy, (c) 2012-2020
- */
-
-#pragma once
-
-#define FILTER_SIZE 5
-
-typedef struct {
-	float values[FILTER_SIZE];
-	float sorted[FILTER_SIZE];
-	int pointer;
-	float K, Vacc, Vout;
-} SignalFiltering;
-
-void sfInit(SignalFiltering *fs, float K, float initialValue);
-void sfAddValue(SignalFiltering *fs, float value);
-void sfAddValue2(SignalFiltering *fs, float value);
-float sfGetValue(SignalFiltering *fs);
diff --git a/firmware/util/util.mk b/firmware/util/util.mk
index 4eb73569b0..699aff16de 100644
--- a/firmware/util/util.mk
+++ b/firmware/util/util.mk
@@ -13,7 +13,6 @@ UTILSRC_CPP = \
 	$(UTIL_DIR)/containers/local_version_holder.cpp \
 	$(UTIL_DIR)/containers/table_helper.cpp \
 	$(UTIL_DIR)/math/pid.cpp \
-	$(UTIL_DIR)/math/avg_values.cpp \
 	$(UTIL_DIR)/math/interpolation.cpp \
 	$(PROJECT_DIR)/util/datalogging.cpp \
 	$(PROJECT_DIR)/util/loggingcentral.cpp \