diff --git a/applications/debug/unit_tests/furi_hal/furi_hal_tests.c b/applications/debug/unit_tests/furi_hal/furi_hal_tests.c
new file mode 100644
index 000000000..e942c5933
--- /dev/null
+++ b/applications/debug/unit_tests/furi_hal/furi_hal_tests.c
@@ -0,0 +1,116 @@
+#include <stdio.h>
+#include <furi.h>
+#include <furi_hal.h>
+#include <lp5562_reg.h>
+#include "../minunit.h"
+
+#define DATA_SIZE 4
+
+static void furi_hal_i2c_int_setup() {
+    furi_hal_i2c_acquire(&furi_hal_i2c_handle_power);
+}
+
+static void furi_hal_i2c_int_teardown() {
+    furi_hal_i2c_release(&furi_hal_i2c_handle_power);
+}
+
+MU_TEST(furi_hal_i2c_int_1b) {
+    bool ret = false;
+    uint8_t data_one = 0;
+
+    // 1 byte: read, write, read
+    ret = furi_hal_i2c_read_reg_8(
+        &furi_hal_i2c_handle_power,
+        LP5562_ADDRESS,
+        LP5562_CHANNEL_BLUE_CURRENT_REGISTER,
+        &data_one,
+        LP5562_I2C_TIMEOUT);
+    mu_assert(ret, "0 read_reg_8 failed");
+    mu_assert(data_one != 0, "0 invalid data");
+    ret = furi_hal_i2c_write_reg_8(
+        &furi_hal_i2c_handle_power,
+        LP5562_ADDRESS,
+        LP5562_CHANNEL_BLUE_CURRENT_REGISTER,
+        data_one,
+        LP5562_I2C_TIMEOUT);
+    mu_assert(ret, "1 write_reg_8 failed");
+    ret = furi_hal_i2c_read_reg_8(
+        &furi_hal_i2c_handle_power,
+        LP5562_ADDRESS,
+        LP5562_CHANNEL_BLUE_CURRENT_REGISTER,
+        &data_one,
+        LP5562_I2C_TIMEOUT);
+    mu_assert(ret, "2 read_reg_8 failed");
+    mu_assert(data_one != 0, "2 invalid data");
+}
+
+MU_TEST(furi_hal_i2c_int_3b) {
+    bool ret = false;
+    uint8_t data_many[DATA_SIZE] = {0};
+
+    // 3 byte: read, write, read
+    data_many[0] = LP5562_CHANNEL_BLUE_CURRENT_REGISTER;
+    ret = furi_hal_i2c_tx(
+        &furi_hal_i2c_handle_power, LP5562_ADDRESS, data_many, 1, LP5562_I2C_TIMEOUT);
+    mu_assert(ret, "3 tx failed");
+    ret = furi_hal_i2c_rx(
+        &furi_hal_i2c_handle_power,
+        LP5562_ADDRESS,
+        data_many + 1,
+        DATA_SIZE - 1,
+        LP5562_I2C_TIMEOUT);
+    mu_assert(ret, "4 rx failed");
+    for(size_t i = 0; i < DATA_SIZE; i++) mu_assert(data_many[i] != 0, "4 invalid data_many");
+
+    ret = furi_hal_i2c_tx(
+        &furi_hal_i2c_handle_power, LP5562_ADDRESS, data_many, DATA_SIZE, LP5562_I2C_TIMEOUT);
+    mu_assert(ret, "5 tx failed");
+
+    ret = furi_hal_i2c_tx(
+        &furi_hal_i2c_handle_power, LP5562_ADDRESS, data_many, 1, LP5562_I2C_TIMEOUT);
+    mu_assert(ret, "6 tx failed");
+    ret = furi_hal_i2c_rx(
+        &furi_hal_i2c_handle_power,
+        LP5562_ADDRESS,
+        data_many + 1,
+        DATA_SIZE - 1,
+        LP5562_I2C_TIMEOUT);
+    mu_assert(ret, "7 rx failed");
+    for(size_t i = 0; i < DATA_SIZE; i++) mu_assert(data_many[i] != 0, "7 invalid data_many");
+}
+
+MU_TEST(furi_hal_i2c_int_1b_fail) {
+    bool ret = false;
+    uint8_t data_one = 0;
+
+    // 1 byte: fail, read, fail, write, fail, read
+    data_one = 0;
+    ret = furi_hal_i2c_read_reg_8(
+        &furi_hal_i2c_handle_power,
+        LP5562_ADDRESS + 0x10,
+        LP5562_CHANNEL_BLUE_CURRENT_REGISTER,
+        &data_one,
+        LP5562_I2C_TIMEOUT);
+    mu_assert(!ret, "8 read_reg_8 failed");
+    mu_assert(data_one == 0, "8 invalid data");
+    ret = furi_hal_i2c_read_reg_8(
+        &furi_hal_i2c_handle_power,
+        LP5562_ADDRESS,
+        LP5562_CHANNEL_BLUE_CURRENT_REGISTER,
+        &data_one,
+        LP5562_I2C_TIMEOUT);
+    mu_assert(ret, "9 read_reg_8 failed");
+    mu_assert(data_one != 0, "9 invalid data");
+}
+
+MU_TEST_SUITE(furi_hal_i2c_int_suite) {
+    MU_SUITE_CONFIGURE(&furi_hal_i2c_int_setup, &furi_hal_i2c_int_teardown);
+    MU_RUN_TEST(furi_hal_i2c_int_1b);
+    MU_RUN_TEST(furi_hal_i2c_int_3b);
+    MU_RUN_TEST(furi_hal_i2c_int_1b_fail);
+}
+
+int run_minunit_test_furi_hal() {
+    MU_RUN_SUITE(furi_hal_i2c_int_suite);
+    return MU_EXIT_CODE;
+}
diff --git a/applications/debug/unit_tests/test_index.c b/applications/debug/unit_tests/test_index.c
index 2009d4a5b..b8760b1f0 100644
--- a/applications/debug/unit_tests/test_index.c
+++ b/applications/debug/unit_tests/test_index.c
@@ -9,6 +9,7 @@
 #define TAG "UnitTests"
 
 int run_minunit_test_furi();
+int run_minunit_test_furi_hal();
 int run_minunit_test_furi_string();
 int run_minunit_test_infrared();
 int run_minunit_test_rpc();
@@ -32,6 +33,7 @@ typedef struct {
 
 const UnitTest unit_tests[] = {
     {.name = "furi", .entry = run_minunit_test_furi},
+    {.name = "furi_hal", .entry = run_minunit_test_furi_hal},
     {.name = "furi_string", .entry = run_minunit_test_furi_string},
     {.name = "storage", .entry = run_minunit_test_storage},
     {.name = "stream", .entry = run_minunit_test_stream},