diff --git a/CMakeLists.txt b/CMakeLists.txt
index f0ff06e..182714e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -138,8 +138,6 @@ target_sources(infinisim PUBLIC
   sim/drivers/Bma421.cpp
   sim/drivers/Cst816s.h
   sim/drivers/Cst816s.cpp
-  sim/drivers/Hrs3300.h
-  sim/drivers/Hrs3300.cpp
   sim/drivers/SpiMaster.h
   sim/drivers/SpiMaster.cpp
   sim/drivers/TwiMaster.h
@@ -199,6 +197,8 @@ target_sources(infinisim PUBLIC
   ${InfiniTime_DIR}/src/components/fs/FS.cpp
   ${InfiniTime_DIR}/src/components/motor/MotorController.h
   ${InfiniTime_DIR}/src/components/motor/MotorController.cpp
+  ${InfiniTime_DIR}/src/drivers/Hrs3300.h
+  ${InfiniTime_DIR}/src/drivers/Hrs3300.cpp
   ${InfiniTime_DIR}/src/drivers/PinMap.h
   ${InfiniTime_DIR}/src/drivers/Spi.h
   ${InfiniTime_DIR}/src/drivers/Spi.cpp
diff --git a/sim/drivers/Hrs3300.cpp b/sim/drivers/Hrs3300.cpp
deleted file mode 100644
index 4374dd4..0000000
--- a/sim/drivers/Hrs3300.cpp
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
-  SPDX-License-Identifier: LGPL-3.0-or-later
-  Original work Copyright (C) 2020 Daniel Thompson
-  C++ port Copyright (C) 2021 Jean-François Milants
-*/
-
-#include "drivers/Hrs3300.h"
-#include <algorithm>
-#include <nrf_gpio.h>
-
-#include <FreeRTOS.h>
-#include <task.h>
-#include <nrf_log.h>
-
-using namespace Pinetime::Drivers;
-/** Driver for the HRS3300 heart rate sensor.
- * Original implementation from wasp-os : https://github.com/daniel-thompson/wasp-os/blob/master/wasp/drivers/hrs3300.py
- */
-Hrs3300::Hrs3300(TwiMaster& twiMaster, uint8_t twiAddress) : twiMaster {twiMaster}, twiAddress {twiAddress} {
-}
-
-void Hrs3300::Init() {
-  nrf_gpio_cfg_input(30, NRF_GPIO_PIN_NOPULL);
-
-  Disable();
-//  vTaskDelay(100);
-
-  // HRS disabled, 12.5 ms wait time between cycles, (partly) 20mA drive
-  WriteRegister(static_cast<uint8_t>(Registers::Enable), 0x60);
-
-  // (partly) 20mA drive, power on, "magic" (datasheet says both
-  // "reserved" and "set low nibble to 8" but 0xe gives better results
-  // and is used by at least two other HRS3300 drivers
-  WriteRegister(static_cast<uint8_t>(Registers::PDriver), 0x6E);
-
-  // HRS and ALS both in 16-bit mode
-  WriteRegister(static_cast<uint8_t>(Registers::Res), 0x88);
-
-  // 64x gain
-  WriteRegister(static_cast<uint8_t>(Registers::Hgain), 0x10);
-}
-
-void Hrs3300::Enable() {
-  NRF_LOG_INFO("ENABLE");
-  auto value = ReadRegister(static_cast<uint8_t>(Registers::Enable));
-  value |= 0x80;
-  WriteRegister(static_cast<uint8_t>(Registers::Enable), value);
-}
-
-void Hrs3300::Disable() {
-  NRF_LOG_INFO("DISABLE");
-  auto value = ReadRegister(static_cast<uint8_t>(Registers::Enable));
-  value &= ~0x80;
-  WriteRegister(static_cast<uint8_t>(Registers::Enable), value);
-}
-
-uint16_t Hrs3300::ReadHrs() {
-  auto m = ReadRegister(static_cast<uint8_t>(Registers::C0DataM));
-  auto h = ReadRegister(static_cast<uint8_t>(Registers::C0DataH));
-  auto l = ReadRegister(static_cast<uint8_t>(Registers::C0dataL));
-  return (m << 8) | ((h & 0x0f) << 4) | (l & 0x0f) | ((l & 0x30) << 12);
-}
-
-uint16_t Hrs3300::ReadAls() {
-  auto m = ReadRegister(static_cast<uint8_t>(Registers::C1dataM));
-  auto h = ReadRegister(static_cast<uint8_t>(Registers::C1dataH));
-  auto l = ReadRegister(static_cast<uint8_t>(Registers::C1dataL));
-  return (m << 3) | ((h & 0x3f) << 11) | (l & 0x07);
-}
-
-void Hrs3300::SetGain(uint8_t gain) {
-  constexpr uint8_t maxGain = 64U;
-  gain = std::min(gain, maxGain);
-  uint8_t hgain = 0;
-  while ((1 << hgain) < gain) {
-    ++hgain;
-  }
-
-  WriteRegister(static_cast<uint8_t>(Registers::Hgain), hgain << 2);
-}
-
-void Hrs3300::SetDrive(uint8_t drive) {
-  auto en = ReadRegister(static_cast<uint8_t>(Registers::Enable));
-  auto pd = ReadRegister(static_cast<uint8_t>(Registers::PDriver));
-
-  en = (en & 0xf7) | ((drive & 2) << 2);
-  pd = (pd & 0xbf) | ((drive & 1) << 6);
-
-  WriteRegister(static_cast<uint8_t>(Registers::Enable), en);
-  WriteRegister(static_cast<uint8_t>(Registers::PDriver), pd);
-}
-
-void Hrs3300::WriteRegister(uint8_t reg, uint8_t data) {
-  auto ret = twiMaster.Write(twiAddress, reg, &data, 1);
-  if (ret != TwiMaster::ErrorCodes::NoError)
-    NRF_LOG_INFO("WRITE ERROR");
-}
-
-uint8_t Hrs3300::ReadRegister(uint8_t reg) {
-  uint8_t value;
-  auto ret = twiMaster.Read(twiAddress, reg, &value, 1);
-  if (ret != TwiMaster::ErrorCodes::NoError)
-    NRF_LOG_INFO("READ ERROR");
-  return value;
-}
diff --git a/sim/drivers/Hrs3300.h b/sim/drivers/Hrs3300.h
deleted file mode 100644
index 01310c6..0000000
--- a/sim/drivers/Hrs3300.h
+++ /dev/null
@@ -1,46 +0,0 @@
-#pragma once
-
-#include "drivers/TwiMaster.h"
-
-namespace Pinetime {
-  namespace Drivers {
-    class Hrs3300 {
-    public:
-      enum class Registers : uint8_t {
-        Id = 0x00,
-        Enable = 0x01,
-        EnableHen = 0x80,
-        C1dataM = 0x08,
-        C0DataM = 0x09,
-        C0DataH = 0x0a,
-        PDriver = 0x0c,
-        C1dataH = 0x0d,
-        C1dataL = 0x0e,
-        C0dataL = 0x0f,
-        Res = 0x16,
-        Hgain = 0x17
-      };
-
-      Hrs3300(TwiMaster& twiMaster, uint8_t twiAddress);
-      Hrs3300(const Hrs3300&) = delete;
-      Hrs3300& operator=(const Hrs3300&) = delete;
-      Hrs3300(Hrs3300&&) = delete;
-      Hrs3300& operator=(Hrs3300&&) = delete;
-
-      void Init();
-      void Enable();
-      void Disable();
-      uint16_t ReadHrs();
-      uint16_t ReadAls();
-      void SetGain(uint8_t gain);
-      void SetDrive(uint8_t drive);
-
-    private:
-      TwiMaster& twiMaster;
-      uint8_t twiAddress;
-
-      void WriteRegister(uint8_t reg, uint8_t data);
-      uint8_t ReadRegister(uint8_t reg);
-    };
-  }
-}