diff --git a/generate-html.py b/generate-html.py
index 859225b..4990f72 100755
--- a/generate-html.py
+++ b/generate-html.py
@@ -29,8 +29,9 @@ overlays = [
 	'skywriter-hat',
 	'explorer-hat-pro',
 	'explorer-hat',
-	'display-o-tron'
-	]
+	'display-o-tron',
+	'dots'
+]
 
 template = open('template/layout.html').read()
 
@@ -90,6 +91,18 @@ def load_overlay(overlay):
 		uses_3v = False
 		uses = 0
 		for pin in loaded['pin']:
+			if pin.startswith('bcm'):
+				pin = pin[3:]
+				for idx in pins:
+					compare_pin = pins[idx]
+					#print(compare_pin)
+					if 'scheme' in compare_pin:
+						if 'bcm' in compare_pin['scheme']:
+							if compare_pin['scheme']['bcm'] == int(pin):
+								print("Mapping BCM{} to {}".format(pin, str(idx)))
+								pin = str(idx)
+								break
+
 			if pin in pins:
 				actual_pin = pins[pin]
 				if actual_pin['type'] in ['+3v3','+5v','GND']:
@@ -201,10 +214,18 @@ def render_pin(pin_num, selected_url, overlay=None):
 	pin_name = pin['name']
 	pin_used = False
 	pin_link_title = []
+	bcm_pin = None
+	if 'scheme' in pin:
+		if 'bcm' in pin['scheme']:
+			bcm_pin = 'bcm' + str(pin['scheme']['bcm'])
 
+	if overlay != None and ( str(pin_num) in overlay['pin'] or bcm_pin in overlay['pin']):
+
+		if str(pin_num) in overlay['pin']:
+			overlay_pin = overlay['pin'][str(pin_num)]
+		else:
+			overlay_pin = overlay['pin'][bcm_pin]
 
-	if overlay != None and str(pin_num) in overlay['pin']:
-		overlay_pin = overlay['pin'][str(pin_num)]
 		pin_used = True
 		#print(overlay)
 		if 'name' in overlay_pin:
diff --git a/overlay/dots.json b/overlay/dots.json
new file mode 100644
index 0000000..06aab21
--- /dev/null
+++ b/overlay/dots.json
@@ -0,0 +1,34 @@
+{
+	"name": "Raspberry Pi Dots",
+	"description": "Join the dots to make a circuit",
+	"pin": {
+		"bcm0":  {"name":"Color: Blue", "direction":"input"},
+		"bcm1":  {"name":"Dot 7", "direction":"input"},
+		"bcm2":  {"name":"Dot 22", "direction":"input"},
+		"bcm3":  {"name":"Dot 21", "direction":"input"},
+		"bcm4":  {"name":"Dot 2", "direction":"input"},
+		"bcm5":  {"name":"Dot 9", "direction":"input"},
+		"bcm6":  {"name":"Dot 14", "direction":"input"},
+		"bcm7":  {"name":"Dot 6", "direction":"input"},
+		"bcm8":  {"name":"Dot 18", "direction":"input"},
+		"bcm9":  {"name":"Dot 17", "direction":"input"},
+		"bcm10": {"name":"Color: Green", "direction":"input"},
+		"bcm11": {"name":"Dot 8", "direction":"input"},
+		"bcm12": {"name":"Dot 10", "direction":"input"},
+		"bcm13": {"name":"Cloud", "direction":"input"},
+		"bcm14": {"name":"Dot 1", "direction":"input"},
+		"bcm15": {"name":"Dot 3", "direction":"input"},
+		"bcm16": {"name":"Dot 13", "direction":"input"},
+		"bcm17": {"name":"Dot 4", "direction":"input"},
+		"bcm18": {"name":"Dot 20", "direction":"input"},
+		"bcm19": {"name":"Color: Orange", "direction":"input"},
+		"bcm20": {"name":"Bear", "direction":"input"},
+		"bcm21": {"name":"Dot 12", "direction":"input"},
+		"bcm22": {"name":"Dot 15", "direction":"input"},
+		"bcm23": {"name":"Dot 16", "direction":"input"},
+		"bcm24": {"name":"Dot 19", "direction":"input"},
+		"bcm25": {"name":"Dot 5", "direction":"input"},
+		"bcm26": {"name":"Dot 11", "direction":"input"},
+		"bcm27": {"name":"Color: Red", "direction":"input"}
+	}
+}
diff --git a/pi-pinout.json b/pi-pinout.json
index 751d0e9..f6a1ad7 100644
--- a/pi-pinout.json
+++ b/pi-pinout.json
@@ -97,7 +97,11 @@
         "27":{
             "name":			"ID_SD",
             "description":  "HAT EEPROM i2c Data",
-            "type":			"GPIO/I2C"
+            "type":			"GPIO/I2C",
+            "scheme": {
+                "wiringpi": 30,
+                "bcm":      0
+            }
         },
         "29":{
             "name":			"",
@@ -236,7 +240,11 @@
         "28":{
             "name":			"ID_SC",
             "description":  "HAT EEPROM i2c Clock",
-            "type":			"GPIO"
+            "type":			"GPIO/I2C",
+            "scheme": {
+                "wiringpi": 31,
+                "bcm":      1
+            }
         },
         "30":{
             "name":			"Ground",