Committing the last status of selene work in the corona lockdown.

The problem is in the MCU, probably

testEuroMoveUsb.py

@@ -0,0 +1,88 @@
+#!/usr/bin/env python3
+# -*- coding: iso-8859-1 -*-
+"""
+Created on Thur Feb 06 10:22:42 2020
+ 
+@author: gaston emmanuel exil
+"""
+
+#pip install pyusb
+#sudo cp 10-llbDevices.rules /etc/udev/rules.d/
+#sudo udevadm control --reload-rules && udevadm trigger
+#reboot
+
+import sys
+import usb.core
+import usb.util
+from time import sleep
+
+# 1. Device
+llbVendorID=0x04B4
+llbProductID=0x1002
+
+# 2. Configuration 
+CONFIGURATION_EV3 = 1       # 1-based
+# 3. Interface
+INTERFACE_EV3 = 0           # 0-based
+# 4. Alternate setting
+SETTING_EV3 = 0             # 0-based
+# 5. Endpoint
+ENDPOINT_EV3 = 1            # 0-based
+
+# find our device
+device = usb.core.find(idVendor=llbVendorID, idProduct=llbProductID)
+
+# was it found?
+if device is None:
+    raise ValueError('Device not found')
+    sys.exit(1)
+else:
+    if device._manufacturer is None:
+        device._manufacturer = usb.util.get_string(device, device.iManufacturer)
+    print("manufacturer: ", str(device._manufacturer))
+    if device._product is None:
+        device._product = usb.util.get_string(device, device.iProduct)
+    print("product: ", str(device._product))
+
+
+# By default, the kernel will claim the device and make it available via
+# /dev/usb/hiddevN and /dev/hidrawN which also prevents us
+# from communicating otherwise. This removes these kernel devices.
+# Yes, it is weird to specify an interface before we get to a configuration.
+
+if device.is_kernel_driver_active(INTERFACE_EV3):
+    print("Detaching kernel driver")
+    device.detach_kernel_driver(INTERFACE_EV3)
+    
+    # claim the device
+    usb.util.claim_interface(device, INTERFACE_EV3)
+
+# write endpoint
+endpoint_BulkOut = device[0][(0,0)][0]
+# Read endpoint
+endpoint_BulkIn = device[0][(0,0)][2]
+try:
+    command = "L"+chr(13)
+    assert device.write(endpoint_BulkOut, command.encode('utf-8'), 100) == len(command)
+    ret = device.read(endpoint_BulkIn, endpoint_BulkIn.wMaxPacketSize, timeout=30000)
+    print(ret)
+    #byte_str = "".join(chr(n) for n in ret)
+    print(ret.tostring())
+    
+
+    
+    command = "A1,4"+chr(13)
+    assert device.write(endpoint_BulkOut, command.encode('utf-8'), 100) == len(command)
+    ret = device.read(endpoint_BulkIn, endpoint_BulkIn.wMaxPacketSize, timeout=30000)
+    print(ret)
+    byte_str = "".join(chr(n) for n in ret)
+    print(ret.tostring())
+    
+except Exception as e:
+    print(e)
+
+
+# release the device
+usb.util.release_interface(device, INTERFACE_EV3)
+# reattach the device to the OS kernel
+#device.attach_kernel_driver(INTERFACE_EV3)