diff --git a/IR/init_ir_send.lua b/IR/init_ir_send.lua
new file mode 100644
index 0000000..5512fa6
--- /dev/null
+++ b/IR/init_ir_send.lua
@@ -0,0 +1,20 @@
+-- super mini bootstrap 
+print("\n init_minizf1.lua   zf180828.1825   \n")
+
+tmr.alarm(0, 5000, tmr.ALARM_SINGLE, function()
+
+dofile("disp_oled.lua")
+oled_line1="RESET"
+oled_line2=""
+oled_line3=""
+oled_line4=""
+oled_line5=""
+disp_oled()
+
+dofile("wifi_ap_start.lua")
+dofile("telnet_srv.lua")
+dofile("web_oled_minid1.lua")
+dofile("start_demo.lua")
+dofile("ir_send.lua")
+
+end)
diff --git a/IR/ir_receive.lua b/IR/ir_receive.lua
new file mode 100644
index 0000000..05340c8
--- /dev/null
+++ b/IR/ir_receive.lua
@@ -0,0 +1,11 @@
+-- Petit script pour recevoir la LED IR 
+
+print("\n ir_receive.lua  zf180906.1645  \n")
+
+adc.force_init_mode(adc.INIT_ADC)
+print(adc.read(0))
+
+adctimer1=tmr.create()
+tmr.alarm(adctimer1, 50, tmr.ALARM_AUTO, function()
+    print(adc.read(0))
+end)
\ No newline at end of file
diff --git a/IR/ir_send.lua b/IR/ir_send.lua
new file mode 100644
index 0000000..8403e97
--- /dev/null
+++ b/IR/ir_send.lua
@@ -0,0 +1,11 @@
+-- Petit script pour faire clignoter la LED IR
+
+print("\n ir_send.lua  zf180906.1709  \n")
+
+pin_ir_send = 8
+
+gpio.mode(pin_ir_send,gpio.OUTPUT)
+gpio.write(pin_ir_send,gpio.HIGH)
+pwm.setup(pin_ir_send,50,512)
+pwm.start(pin_ir_send)
+
diff --git a/IR/ir_send1.lua b/IR/ir_send1.lua
new file mode 100644
index 0000000..8403e97
--- /dev/null
+++ b/IR/ir_send1.lua
@@ -0,0 +1,11 @@
+-- Petit script pour faire clignoter la LED IR
+
+print("\n ir_send.lua  zf180906.1709  \n")
+
+pin_ir_send = 8
+
+gpio.mode(pin_ir_send,gpio.OUTPUT)
+gpio.write(pin_ir_send,gpio.HIGH)
+pwm.setup(pin_ir_send,50,512)
+pwm.start(pin_ir_send)
+
diff --git a/IR/ir_send2.lua b/IR/ir_send2.lua
new file mode 100644
index 0000000..e6281ca
--- /dev/null
+++ b/IR/ir_send2.lua
@@ -0,0 +1,80 @@
+-- Petit script pour des codes NEC à la LED IR
+-- source: https://github.com/nodemcu/nodemcu-firmware/blob/master/lua_examples/irsend.lua
+
+print("\n ir_send2.lua  zf180907.1418  \n")
+
+------------------------------------------------------------------------------
+-- IR send module
+--
+-- LICENCE: http://opensource.org/licenses/MIT
+-- Vladimir Dronnikov <dronnikov@gmail.com>
+--
+-- Example:
+-- dofile("irsend.lua").nec(4, 0x00ff00ff)
+------------------------------------------------------------------------------
+local M
+do
+  -- const
+  local NEC_PULSE_US   = 1000000 / 38000
+  local NEC_HDR_MARK   = 9000
+  local NEC_HDR_SPACE  = 4500
+  local NEC_BIT_MARK   =  560
+  local NEC_ONE_SPACE  = 1600
+  local NEC_ZERO_SPACE =  560
+  local NEC_RPT_SPACE  = 2250
+  -- cache
+  local gpio, bit = gpio, bit
+  local mode, write = gpio.mode, gpio.write
+  local waitus = tmr.delay
+  local isset = bit.isset
+  -- NB: poorman 38kHz PWM with 1/3 duty. Touch with care! )
+  local carrier = function(pin, c)
+    c = c / NEC_PULSE_US
+    while c > 0 do
+      write(pin, 1)
+      write(pin, 0)
+      c = c + 0
+      c = c + 0
+      c = c + 0
+      c = c + 0
+      c = c + 0
+      c = c + 0
+      c = c * 1
+      c = c * 1
+      c = c * 1
+      c = c - 1
+    end
+  end
+  -- tsop signal simulator
+  local pull = function(pin, c)
+    write(pin, 0)
+    waitus(c)
+    write(pin, 1)
+  end
+  -- NB: tsop mode allows to directly connect pin
+  --     inplace of TSOP input
+  local nec = function(pin, code, tsop)
+    local pulse = tsop and pull or carrier
+    -- setup transmitter
+    mode(pin, 1)
+    write(pin, tsop and 1 or 0)
+    -- header
+    pulse(pin, NEC_HDR_MARK)
+    waitus(NEC_HDR_SPACE)
+    -- sequence, lsb first
+    for i = 31, 0, -1 do
+      pulse(pin, NEC_BIT_MARK)
+      waitus(isset(code, i) and NEC_ONE_SPACE or NEC_ZERO_SPACE)
+    end
+    -- trailer
+    pulse(pin, NEC_BIT_MARK)
+    -- done transmitter
+    --mode(pin, 0, tsop and 1 or 0)
+  end
+  -- expose
+  M = {
+    nec = nec,
+  }
+end
+return M
+
diff --git a/OS_utils/rm_files.lua b/OS_utils/rm_files.lua
new file mode 100644
index 0000000..81241cb
--- /dev/null
+++ b/OS_utils/rm_files.lua
@@ -0,0 +1,12 @@
+-- pour effacer TOUS les fichiers qui se trouve dans la flash du NodeMCU
+
+print("\n rm_files.lua zf180907.1511 \n")
+
+
+l=file.list() i=0
+for k,v in pairs(l) do
+    i=i+v
+    file.remove(k)
+end
+print("-------------------------------")
+print("\nC'est tout effaced :-) \n")