diff --git a/.gitignore b/.gitignore
index 7212d2758..8645c08d2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,7 @@
 /build/artifacts/
 build/device/**/*.pyc
 epsilon.elf
+epsilon.map
 .vscode
 .DS_Store
 .gradle
diff --git a/ion/src/simulator/3ds/driver/common.cpp b/ion/src/simulator/3ds/driver/common.cpp
index 0eb6e2d23..b4bd829a1 100644
--- a/ion/src/simulator/3ds/driver/common.cpp
+++ b/ion/src/simulator/3ds/driver/common.cpp
@@ -1,4 +1,5 @@
 #include <3ds.h>
+#include <string.h>
 #include "common.h"
 
 static bool plugged = false;
@@ -6,6 +7,36 @@ static bool battery_charging = false;
 static Ion::Battery::Charge battery_level = Ion::Battery::Charge::FULL;
 static time_t last_pull = 0;
 
+static Handle ptmsysmHandle = 0;
+
+static Result common_ptmsysmInit() {
+  return srvGetServiceHandle(&ptmsysmHandle, "ptm:sysm");
+}
+
+static Result common_ptmsysmExit() {
+  return svcCloseHandle(ptmsysmHandle);
+}
+
+Result Ion::Simulator::CommonDriver::common_ptmsysmSetInfoLedPattern(RGBLedPattern pattern) {
+  if (ptmsysmHandle == 0)
+    return -1;
+
+  u32* ipc = getThreadCommandBuffer();
+  ipc[0] = 0x8010640;
+  memcpy(&ipc[1], &pattern, 0x64);
+  Result ret = svcSendSyncRequest(ptmsysmHandle);
+  if(ret < 0) return ret;
+  return ipc[1];
+}
+
+void Ion::Simulator::CommonDriver::init() {
+  common_ptmsysmInit();
+}
+
+void Ion::Simulator::CommonDriver::deinit() {
+  common_ptmsysmExit();
+}
+
 bool Ion::Simulator::CommonDriver::isPlugged() {
   pullData();
   return plugged;
diff --git a/ion/src/simulator/3ds/driver/common.h b/ion/src/simulator/3ds/driver/common.h
index 4707bf3f4..3e7ea336b 100644
--- a/ion/src/simulator/3ds/driver/common.h
+++ b/ion/src/simulator/3ds/driver/common.h
@@ -3,17 +3,28 @@
 
 #include <ion/battery.h>
 #include <time.h>
+#include <3ds.h>
 
 #define PULL_DELAY 1.0f
 
+typedef struct {
+  u32 ani;
+  u8 r[32];
+  u8 g[32];
+  u8 b[32];
+} RGBLedPattern;
+
 namespace Ion {
 namespace Simulator {
 namespace CommonDriver {
 
+void init();
+void deinit();
 void pullData();
 bool isPlugged();
 bool isCharging();
 Ion::Battery::Charge getLevel();
+Result common_ptmsysmSetInfoLedPattern(RGBLedPattern pattern);
 
 }
 }
diff --git a/ion/src/simulator/3ds/driver/led.cpp b/ion/src/simulator/3ds/driver/led.cpp
index 91e0cb0b4..819390f57 100644
--- a/ion/src/simulator/3ds/driver/led.cpp
+++ b/ion/src/simulator/3ds/driver/led.cpp
@@ -1,18 +1,79 @@
 #include <ion/led.h>
+#include <ion/battery.h>
+#include <ion/usb.h>
+#include <ion/exam_mode.h>
+
+#include <string.h>
+#include <3ds.h>
+#include "common.h"
+
+static KDColor sLedColor = KDColorBlack;
 
 namespace Ion {
 namespace LED {
 
 KDColor getColor() {
-  return KDColorBlack;
+  return sLedColor;
 }
 
-void setColor(KDColor c) {}
+void setColor(KDColor c) {
+  sLedColor = c;
+  
+  /* 
+   * According to https://www.3dbrew.org/wiki/MCURTC:SetInfoLEDPattern
+   * annimation pattern is as follow
+   * u8 ??? | u8 loop_delay | u8 smoothing | u8 delay
+   */
+  RGBLedPattern pat;
+  memset(&pat, 0, sizeof(pat));
+  
+  for(int i = 0; i < 32; i++) {
+    pat.r[i] = sLedColor.red();
+    pat.g[i] = sLedColor.green();
+    pat.b[i] = sLedColor.blue();
+  }
+  
+  pat.ani = 0x20;
+  
+  Ion::Simulator::CommonDriver::common_ptmsysmSetInfoLedPattern(pat);
+}
 
-void setBlinking(uint16_t period, float dutyCycle) {}
+void setBlinking(uint16_t period, float dutyCycle) {
+  uint8_t period_3ds = (uint8_t)((float)(period)*0.016f);
+  uint8_t duty_3ds = (uint8_t)(dutyCycle*32.0f);
+  
+  /* 
+   * According to https://www.3dbrew.org/wiki/MCURTC:SetInfoLEDPattern
+   * annimation pattern is as follow
+   * u8 ??? | u8 loop_delay | u8 smoothing | u8 delay
+   *
+   * Se, we seet ??? to 0, loop_delay to 0 (to have it loop)
+   */
+  RGBLedPattern pat;
+  memset(&pat, 0, sizeof(pat));
+  
+  for(int i = 0; i < duty_3ds && i < 32; i++) {
+    pat.r[i] = (sLedColor.red() > 0) ? 255 : 0;
+    pat.g[i] = (sLedColor.green() > 0) ? 255 : 0;
+    pat.b[i] = (sLedColor.blue() > 0) ? 255 : 0;
+  }
+  
+  pat.ani = period_3ds;
+  
+  Ion::Simulator::CommonDriver::common_ptmsysmSetInfoLedPattern(pat);
+}
 
 KDColor updateColorWithPlugAndCharge() {
-  return KDColorBlack;
+  KDColor ledColor = getColor();
+  if (ExamMode::FetchExamMode() == 0) { // If exam mode is on, we do not update the LED with the plugged/charging state
+    if (USB::isPlugged()) {
+      ledColor = Battery::isCharging() ? KDColorOrange : KDColorGreen;
+    } else {
+      ledColor = KDColorBlack;
+    }
+    setColor(ledColor);
+  }
+  return ledColor;
 }
 
 }
diff --git a/ion/src/simulator/3ds/main.cpp b/ion/src/simulator/3ds/main.cpp
index 5b4d29ce1..c0b38e9c4 100644
--- a/ion/src/simulator/3ds/main.cpp
+++ b/ion/src/simulator/3ds/main.cpp
@@ -13,6 +13,8 @@
 
 #include <3ds.h>
 
+#include "driver/common.h"
+
 void Ion::Timing::msleep(uint32_t ms) {
     svcSleepThread((s64) ms * 1000);
 }
@@ -43,6 +45,7 @@ static bool sNeedsRefresh = false;
 void init() {
   gfxInitDefault();
   cfguInit();
+  Ion::Simulator::CommonDriver::init();
   // mcuHwcInit();
   ptmuInit();
   relayout();
@@ -88,6 +91,7 @@ void quit() {
   // mcuHwcExit();
   ptmuExit();
   cfguExit();
+  Ion::Simulator::CommonDriver::deinit();
   gfxExit();
 }