diff --git a/README.md b/README.md
index 0d63057..0b48885 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,9 @@
 # raspool
+
+
+
+gpio relay module
+1In = 19
+2In = 26
+3In = 16
+4In = 20
\ No newline at end of file
diff --git a/pompe_peristaltique.py b/pompe_peristaltique.py
new file mode 100644
index 0000000..5c4efaf
--- /dev/null
+++ b/pompe_peristaltique.py
@@ -0,0 +1,19 @@
+import RPi.GPIO as gpio
+
+In1 = 26
+In2 = 19
+In3 = 16
+In4 = 20
+
+def init_pompes():
+    gpio.setmode(gpio.BCM)
+    gpio.setup(In1, gpio.OUT)
+    gpio.setup(In2, gpio.OUT)
+    gpio.setup(In3, gpio.OUT)
+    gpio.setup(In4, gpio.OUT)
+
+def demarrer_pompe(numero_pompe):
+    gpio.output(numero_pompe, gpio.LOW)
+
+def arreter_pompe(numero_pompe):
+    gpio.output(numero_pompe, gpio.HIGH)
diff --git a/test.py b/test.py
index fde8d8c..3c3f4fb 100644
--- a/test.py
+++ b/test.py
@@ -3,7 +3,11 @@ import board
 import busio
 import adafruit_ads1x15.ads1115 as ADS
 from adafruit_ads1x15.analog_in import AnalogIn
+import RPi.GPIO as gpio
 
+gpio.setmode(gpio.BCM)
+gpio.setup(pin, gpio.OUT)
+gpio.output(pin, gpio.LOW)
 
 i2c = busio.I2C(board.SCL, board.SDA)