Merge branch 'master' of https://gitlab.irstea.fr/reversaal/OhmPi

test_mux_board.py

+"""
+Created on Tue Dec  7 06:39:33 2021 
+Code for testing switch MUX for ohmpi 2 
+@author: remi.clement 
+"""
+
+import time , board, busio,adafruit_tca9548a 
+from adafruit_mcp230xx.mcp23017 import MCP23017 
+import digitalio
+from digitalio import Direction
+
+
+address=0X71# choose the mux board address 
+activation_time=1 # choose your activation time in second 
+
+
+i2c = busio.I2C(board.SCL, board.SDA) #activation du protocle I2C 
+def switch_mux_on(electrode,address):
+    tca= adafruit_tca9548a.TCA9548A(i2c, address)
+    if electrode < 17: 
+        nb_i2C=7 
+        a=electrode 
+    elif electrode > 16 and electrode< 33:     
+        nb_i2C=6 
+        a=electrode-16 
+    elif electrode > 32 and electrode < 49:     
+        nb_i2C=5 
+        a=electrode-32 
+    elif electrode > 48 and electrode < 65:     
+        nb_i2C=4 
+        a=electrode-48 
+               
+    mcp2 = MCP23017(tca[nb_i2C]) 
+    mcp2.get_pin(a-1).direction=Direction.OUTPUT 
+    mcp2.get_pin(a-1).value=True 
+  
+def switch_mux_off(electrode,address): 
+    tca= adafruit_tca9548a.TCA9548A(i2c, address) 
+    if electrode < 17: 
+        nb_i2C=7 
+        a=electrode 
+    elif electrode > 16 and electrode < 33:     
+        nb_i2C=6 
+        a=electrode-16 
+    elif electrode > 32 and electrode < 49:     
+        nb_i2C=5
+        
+        a=electrode-32 
+    elif electrode > 48 and electrode < 65:     
+        nb_i2C=4 
+        a=electrode-48 
+           
+    mcp2 = MCP23017(tca[nb_i2C])      
+    mcp2.get_pin(a-1).direction=digitalio.Direction.OUTPUT 
+    mcp2.get_pin(a-1).value=False 
+ 
+a=input(' if vous want try 1 channel choose 1, if you want try all channel choose 2!') 
+ 
+if a=='1': 
+    b=0 
+    print ("run channel by channel test") 
+    electrode=int(input(' Choose your electrode number (integer):')) 
+    switch_mux_on(electrode,address) 
+    print('electrode:',electrode,' activate' ) 
+    time.sleep(activation_time) 
+    switch_mux_off(electrode,address) 
+    print('electrode:',electrode,' deactivate' ) 
+     
+if a== '2': 
+    for electrode in range(1, 65): 
+        switch_mux_on(electrode,address) 
+        print('electrode:',electrode,' activate' ) 
+        time.sleep(activation_time) 
+        switch_mux_off(electrode,address) 
+        print('electrode:',electrode,' deactivate' ) 
+     
+if a not in ['1', '2']: 
+    print ("Wrong choice !")