diff --git a/offok/offok.ino b/offok/offok.ino
new file mode 100644
index 0000000..670846d
--- /dev/null
+++ b/offok/offok.ino
@@ -0,0 +1,173 @@
+/*--------------------------------------------------------------*/
+/*  Projet: OFFOK                                               */
+/*  File  : offok.ino                                           */
+/*  Author: ukjent@HPP                                 04/05/21 */
+/*--------------------------------------------------------------*/
+/*
+This gets IR codes send by a TvBeGone & displays results on OLED
+02/14/21: First proof of IR sensor & Oled
+02/17/21: Moved to new lib U8g2lib, works OK on UNO
+04/05/21: OK on NANO
+04/22/21: new logo, display hex code, test piezo
+TODO: adjust delays, play nice ringstones, use protothreads ?
+*/
+#include <Arduino.h>
+/*
+    Graphics settings  
+*/
+#include <U8g2lib.h>
+#ifdef U8X8_HAVE_HW_SPI
+#include <SPI.h>
+#endif
+#ifdef U8X8_HAVE_HW_I2C
+#include <Wire.h>
+#endif
+U8G2_SH1106_128X64_NONAME_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);
+#include "logo.h"  // Home logo :-)
+/*
+    IR settings  
+*/
+#include <IRremote.h>
+/*    the function tone() uses timer2 by default, so does IRremote lib.
+ *    File IRremoteBoardDefs.h, in lib IRremote define wich timer to use */
+// #define IR_USE_TIMER1   // use Timer 1 instead of Timer 2
+const int RECV_PIN = 2;
+IRrecv irrecv(RECV_PIN);
+decode_results results;
+
+//#define DEBUG
+#define NBCODES 130     // mininum codes to qualify a kit
+#define ACQUINONE 4000  // maximum time allowed without signal in millisecond
+/*
+ *    Sound settings
+ */
+#define PIEZO  7
+unsigned int sounds[] = {262,294,330,349,392,440,494}; // just to test piezo
+#define BEATTIME  400
+
+void drawLogo(void) {  // draw the logo screen
+  u8g2.firstPage();
+  do {
+    u8g2.drawXBMP( 0, 0, logo_width, logo_height, logo_bits);
+  } while ( u8g2.nextPage() );
+}
+
+void setup(void) { 
+  noTone(PIEZO); // WIP musical intro needed :-)
+  u8g2.begin(); 
+  drawLogo();
+#ifdef DEBUG   
+  Serial.begin(9600);
+#endif  
+  irrecv.enableIRIn(); // Start the receiver
+  delay(1000); 
+}
+
+void showTrace();
+
+void constratSlope(int depart, int aim, int inc, int lag) { // Dimmer slope up or down
+  int i=depart; 
+  if (inc > 0) u8g2.setPowerSave(0);
+  do {
+    i=constrain(i,0,254);
+    u8g2.setContrast(i);
+    delay (lag);
+    i=i+inc;
+  } while (i != aim);
+  if (inc < 0) u8g2.setPowerSave(1);
+}
+void showResult(int val){
+  char l1[8]; 
+  sprintf(l1, "%4d",val); 
+  u8g2.firstPage();
+  do {
+    u8g2.setFont(u8g2_font_profont17_tr);
+    u8g2.drawStr(10,24, "Total recus :");
+    u8g2.setFont(u8g2_font_profont22_tr);
+    u8g2.drawStr(30,54, l1);
+  } while ( u8g2.nextPage() );
+  for (int i=0; i<=6; i++) {
+   tone(PIEZO,sounds[i]);
+   delay(BEATTIME);
+   noTone(PIEZO);
+  }   
+}
+void showResultOLD(int val){
+ char l1[16],l2[16]; 
+  if (val < NBCODES) {
+    sprintf(l1, "C'est KO :-(") ;
+    sprintf(l2, "    DESOLE");     
+  } else {
+    sprintf(l1, "C'est OK :-)") ;
+    sprintf(l2, "FELICITATION");  
+  }
+  u8g2.firstPage();
+  do {
+    u8g2.setFont(u8g2_font_fub14_tr);
+    u8g2.drawStr(4,24, l1);
+    u8g2.setFont(u8g2_font_fub11_tr);
+    u8g2.drawStr(8,54, l2);
+  } while ( u8g2.nextPage() );
+}
+
+void showCode(unsigned long val) {
+  char buf[16];
+  u8g2.firstPage();
+  do {
+    u8g2.setFont(u8g2_font_profont17_tr);
+    u8g2.drawStr(16,24, "Code recu :");
+    sprintf(buf, "%08X", val ) ;
+    u8g2.setFont(u8g2_font_profont22_tr);
+    u8g2.drawStr(16,54,buf);
+  } while ( u8g2.nextPage() );  
+}
+
+void showCount(int val) {
+  char buf[16];
+    u8g2.firstPage();
+    do {
+      u8g2.setFont(u8g2_font_fub14_tr);
+      u8g2.drawStr(12,28,"Codes lus :");
+      sprintf(buf, "%3d", val ) ;
+      u8g2.setFont(u8g2_font_fub20_tr);
+      u8g2.drawStr(40,60,buf);
+    } while ( u8g2.nextPage() );  
+}
+
+
+// Global parameters
+int cl=0; unsigned long lastReading=0, currentt=0;
+
+void loop(void) {
+  noTone(PIEZO);
+  if (irrecv.decode(&results)) { // if we keep getting signals, it is running
+    lastReading=millis();
+    cl += 1;
+    showCode(results.value); //showCount(cl);
+    irrecv.resume();  
+  } 
+  else    // got no more reading
+  {       // if we keep getting nothing, then it is over  
+    currentt = millis();
+    if ((lastReading + ACQUINONE < currentt) && ( cl > 0)) { // lastReading too old
+      showTrace();
+      showResult(cl); cl = 0; 
+      constratSlope(255, 0, -1, 50);
+      delay(3000);
+      drawLogo(); 
+      constratSlope(0, 255, 1, 20);
+    }
+  }
+ 
+} // loop
+
+void showTrace() { 
+#ifdef DEBUG  
+  Serial.print("OK cl : ");
+  Serial.print(cl);
+  Serial.print("  currentt : ");
+  Serial.print(currentt);
+  Serial.print(" lastReading : ");
+  Serial.println(lastReading); 
+#endif   
+}
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