diff --git a/workspace/welcome-to-xod/104-button/patch.xodp b/workspace/welcome-to-xod/104-button/patch.xodp
index f911da4ad..508bba94f 100644
--- a/workspace/welcome-to-xod/104-button/patch.xodp
+++ b/workspace/welcome-to-xod/104-button/patch.xodp
@@ -1,7 +1,7 @@
 {
   "comments": [
     {
-      "content": "# Buttons\n\nHere is a `button` node from `xod/common-hardware`.\n\nTake a look at button outputs. It has a `PRS` pin, which is true whenever it is pressed. And `DONE` pin, which pulses when reading is done, wherever the button is pressed or not.\n\nThis is a standard idiom for side-effect nodes representing hardware or, for example, the Internet.\n\n## Exercise\n\nLet's make the LED glow while the button is pressed.\n\n1. Assemble the [circuit with a button and LED](https://xod.io/docs/tutorial/104-button/?utm_source=ide&utm_medium=ide_comment&utm_campaign=tutorial#circuit).\n2. Set the `PORT` value of the `button` node.\n3. Link `PRS` to `LUM`.\n4. Upload your patch.\n\nHold the button to turn the LED on.",
+      "content": "# Buttons\n\nHere is a `button` node from `xod/common-hardware`.\n\nTake a look at button outputs. It has a `PRS` pin, which is true whenever it is pressed. And `DONE` pin, which pulses when reading is done, wherever the button is pressed or not.\n\nThis is a standard idiom for side-effect nodes representing hardware or, for example, the Internet.\n\n## Exercise\n\nLet's make the LED glow while the button is pressed.\n\n1. Assemble the [circuit with a button and LED](https://xod.io/docs/tutorial/104-button/?utm_source=ide&utm_medium=ide_comment&utm_campaign=tutorial#circuit).\n2. Set the `PORT` value of the `button` node to `D13` because it’s connected to the board's digital port 13.\n3. Link `PRS` to `LUM`.\n4. Upload your patch.\n\nHold the button to turn the LED on.",
       "id": "HJzSJTKCwV",
       "position": {
         "units": "slots",
diff --git a/workspace/welcome-to-xod/108-text-lcd/patch.xodp b/workspace/welcome-to-xod/108-text-lcd/patch.xodp
index 7b6c3a76e..46b0a1bd2 100644
--- a/workspace/welcome-to-xod/108-text-lcd/patch.xodp
+++ b/workspace/welcome-to-xod/108-text-lcd/patch.xodp
@@ -54,14 +54,14 @@
     },
     {
       "boundLiterals": {
-        "BJxIhfrk7B": "D11",
+        "BJxIhfrk7B": "D6",
         "HJInzryQr": "\"Hello\"",
         "HJbIhGB1XB": "\"World\"",
-        "SkzI2fBkmH": "D9",
-        "r1QLnzH1mr": "D10",
-        "rk8I2fHkXH": "D8",
-        "rkVLnGSJQS": "D12",
-        "ryHL2GHyQS": "D13"
+        "SkzI2fBkmH": "D4",
+        "r1QLnzH1mr": "D5",
+        "rk8I2fHkXH": "D3",
+        "rkVLnGSJQS": "D7",
+        "ryHL2GHyQS": "D8"
       },
       "id": "r1G7wFeXB",
       "position": {
diff --git a/workspace/welcome-to-xod/110-ldr/patch.xodp b/workspace/welcome-to-xod/110-ldr/patch.xodp
index 4b7f0c800..a15528623 100644
--- a/workspace/welcome-to-xod/110-ldr/patch.xodp
+++ b/workspace/welcome-to-xod/110-ldr/patch.xodp
@@ -39,6 +39,9 @@
       "type": "xod/debug/watch"
     },
     {
+      "boundLiterals": {
+        "r1l3XcR17": "A2"
+      },
       "id": "SkSOIt1ON",
       "position": {
         "units": "slots",
@@ -48,6 +51,9 @@
       "type": "xod/common-hardware/analog-sensor"
     },
     {
+      "boundLiterals": {
+        "B1oqkTnIb": "D11"
+      },
       "id": "rJJbwKy_E",
       "position": {
         "units": "slots",