diff --git a/tests/unit/logic/feed_to_finda/test_feed_to_finda.cpp b/tests/unit/logic/feed_to_finda/test_feed_to_finda.cpp
index e08bf89..233c413 100644
--- a/tests/unit/logic/feed_to_finda/test_feed_to_finda.cpp
+++ b/tests/unit/logic/feed_to_finda/test_feed_to_finda.cpp
@@ -55,8 +55,7 @@ TEST_CASE("feed_to_finda::feed_phase_unlimited", "[feed_to_finda]") {
     REQUIRE(ml::leds.LedOn(mg::globals.ActiveSlot(), ml::Color::green));
 
     // now let the filament be pushed into the FINDA - do 500 steps without triggering the condition
-    // and then let the simulated ADC channel 1 create a FINDA switch
-    ha::ReinitADC(config::findaADCIndex, ha::TADCData({ 600, 700, 800, 900 }), 1);
+    hal::gpio::WritePin(FINDA_PIN, hal::gpio::Level::high);
 
     REQUIRE(WhileCondition(
         ff,
@@ -121,7 +120,7 @@ TEST_CASE("feed_to_finda::FINDA_failed", "[feed_to_finda]") {
     REQUIRE(ml::leds.Mode(mg::globals.ActiveSlot(), ml::Color::green) == ml::blink0);
 
     // now let the filament be pushed into the FINDA - but we make sure the FINDA doesn't trigger at all
-    ha::ReinitADC(config::findaADCIndex, ha::TADCData({ 0 }), 100);
+    hal::gpio::WritePin(FINDA_PIN, hal::gpio::Level::low);
 
     REQUIRE(WhileCondition(
         ff,
diff --git a/tests/unit/logic/stubs/main_loop_stub.cpp b/tests/unit/logic/stubs/main_loop_stub.cpp
index 8903784..338e585 100644
--- a/tests/unit/logic/stubs/main_loop_stub.cpp
+++ b/tests/unit/logic/stubs/main_loop_stub.cpp
@@ -56,7 +56,7 @@ void ForceReinitAllAutomata() {
     hal::adc::ReinitADC(config::buttonsADCIndex, hal::adc::TADCData({ 1023 }), 1);
 
     // finda OFF
-    hal::adc::ReinitADC(config::findaADCIndex, hal::adc::TADCData({ 0 }), 1);
+    hal::gpio::WritePin(FINDA_PIN, hal::gpio::Level::low);
 
     // reinit timing
     mt::ReinitTimebase();
@@ -79,7 +79,7 @@ void EnsureActiveSlotIndex(uint8_t slot) {
 }
 
 void SetFINDAStateAndDebounce(bool press) {
-    hal::adc::SetADC(config::findaADCIndex, press ? config::findaADCDecisionLevel + 1 : config::findaADCDecisionLevel - 1);
+    hal::gpio::WritePin(FINDA_PIN, hal::gpio::Level::high);
     for (size_t i = 0; i < config::findaDebounceMs + 1; ++i)
         main_loop();
 }