upd EIT example

Author: JacobTh98

examples/EIT-16-256-Ch.ipynb

@@ -8,18 +8,6 @@
     "# Example code for connecting a Sciospec EIT device"
    ]
   },
-  {
-   "cell_type": "markdown",
-   "id": "8a5423a4-f8da-4cdb-8163-1d50d12e6e23",
-   "metadata": {},
-   "source": [
-    "**USB-HS**\n",
-    "\n",
-    "Connect the EIT device to the USB-HS port.\n",
-    "\n",
-    "If you have issues with the connection try [this](https://eblot.github.io/pyftdi/installation.html)."
-   ]
-  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -45,6 +33,23 @@
     "sciospec = EIT_16_32_64_128(n_el)"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "id": "c6d1efce-1e7f-46a0-a092-e2fe38017fc6",
+   "metadata": {},
+   "source": [
+    "___\n",
+    "For some Sciospec devices two USB ports are available.\n",
+    "It it preferred to use the USB-HS port, because it is faster than USB-FS.\n",
+    "You cannot connect both USB ports with the same script.\n",
+    "\n",
+    "**USB-HS**\n",
+    "\n",
+    "Connect the EIT device to the USB-HS port.\n",
+    "\n",
+    "If you have issues with the connection try [this](https://eblot.github.io/pyftdi/installation.html)."
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -56,6 +61,48 @@
     "sciospec.connect_device_HS()"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "id": "8dadceb4-5f5a-4fe7-8490-c16423bf9f24",
+   "metadata": {},
+   "source": [
+    "**USB-FS**\n",
+    "\n",
+    "Connect the EIT device to the USB-FS port."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "d3f4ca6b-fff9-41e2-97c6-6d458702b7b1",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from sciopy import available_serial_ports\n",
+    "\n",
+    "# this function can be used to get the available ports (works only on windows, I guess)\n",
+    "available_serial_ports()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "924cbf79-ca2a-4d32-a1f1-6450746078c0",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# connect device via USB-FS port\n",
+    "sciospec.connect_device_FS(port=\"COM1\")  # Insert available serial port here."
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "5fd0f70f-f0c8-429c-b0db-43d23b75f365",
+   "metadata": {},
+   "source": [
+    "___"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,