diff --git a/include/sys.hpp b/include/sys.hpp
index 77a532f..6b1d536 100644
--- a/include/sys.hpp
+++ b/include/sys.hpp
@@ -13,6 +13,12 @@ namespace sys {
 const char months[][4] = {"sty", "lut", "mar", "kwi", "maj", "cze", "lip", "sie", "wrz", "paz", "lis", "gru"};
 const char wdays[][4] = {"Nie", "Pon", "Wto", "Sro", "Czw", "Pia", "Sob"};
 
+struct sysSensors {
+    std::string hwmon = "";
+    uint16_t fan_speed[2] = {0}; // left and right cpu fans
+    uint8_t t_sensor = 0; // ntc temp sensor
+};
+
 struct Memory {
     uint64_t free = 0;
     uint64_t used = 0;
@@ -27,6 +33,8 @@ struct TimeDate {
 void getTimeDate(TimeDate* td);
 void getDisk(Memory* disk, std::string mount);
 void getRam(Memory* mem);
+void detectHwmon(sysSensors* s);
+void updateSensors(sysSensors* s);
 
 }  // namespace sys
 
diff --git a/src/sys.cpp b/src/sys.cpp
index 5605656..797969d 100644
--- a/src/sys.cpp
+++ b/src/sys.cpp
@@ -20,4 +20,14 @@ void sys::getDisk(Memory* disk, std::string mount) {
     disk->free = diskData.f_bfree * diskData.f_frsize;
     disk->used = (diskData.f_blocks - diskData.f_bfree) * diskData.f_frsize;
     disk->total = diskData.f_blocks * diskData.f_frsize;
+}
+
+void sys::detectHwmon(sysSensors* s) {
+    s->hwmon = getFirstDir("/sys/devices/platform/nct6775.656/hwmon"); // we hardcode the chip path, should be sane
+}
+
+void sys::updateSensors(sysSensors* s) {
+    s->fan_speed[0] = std::stol(readFile(s->hwmon + "/fan2_input", 4));
+    s->fan_speed[1] = std::stol(readFile(s->hwmon + "/fan7_input", 4));;
+    s->t_sensor = std::stol(readFile(s->hwmon + "/temp5_input", 2));
 }
\ No newline at end of file