diff --git a/Makefile b/Makefile
index 11910d6f..4c9201f5 100644
--- a/Makefile
+++ b/Makefile
@@ -389,6 +389,8 @@ ifneq ($(WASM), 0)
 	@$(MD5SUM) test.wasm
 	$(TINYGO) build -size short -o test.wasm -tags=circuitplay_express  examples/blinky1
 	@$(MD5SUM) test.wasm
+	$(TINYGO) build -size short -o test.wasm -tags=circuitplay_bluefruit examples/blinky1
+	@$(MD5SUM) test.wasm
 endif
 	# test all targets/boards
 	$(TINYGO) build -size short -o test.hex -target=pca10040-s132v6     examples/blinky1
diff --git a/src/machine/board_nrf52840.go b/src/machine/board_nrf52840.go
new file mode 100644
index 00000000..4d3c322f
--- /dev/null
+++ b/src/machine/board_nrf52840.go
@@ -0,0 +1,56 @@
+//go:build nrf52840 || circuitplay_bluefruit || reelboard || clue || itsybitsy_nrf52840
+// +build nrf52840 circuitplay_bluefruit reelboard clue itsybitsy_nrf52840
+
+package machine
+
+// Hardware pins
+const (
+	P0_00 Pin = 0
+	P0_01 Pin = 1
+	P0_02 Pin = 2
+	P0_03 Pin = 3
+	P0_04 Pin = 4
+	P0_05 Pin = 5
+	P0_06 Pin = 6
+	P0_07 Pin = 7
+	P0_08 Pin = 8
+	P0_09 Pin = 9
+	P0_10 Pin = 10
+	P0_11 Pin = 11
+	P0_12 Pin = 12
+	P0_13 Pin = 13
+	P0_14 Pin = 14
+	P0_15 Pin = 15
+	P0_16 Pin = 16
+	P0_17 Pin = 17
+	P0_18 Pin = 18
+	P0_19 Pin = 19
+	P0_20 Pin = 20
+	P0_21 Pin = 21
+	P0_22 Pin = 22
+	P0_23 Pin = 23
+	P0_24 Pin = 24
+	P0_25 Pin = 25
+	P0_26 Pin = 26
+	P0_27 Pin = 27
+	P0_28 Pin = 28
+	P0_29 Pin = 29
+	P0_30 Pin = 30
+	P0_31 Pin = 31
+	P1_00 Pin = 32
+	P1_01 Pin = 33
+	P1_02 Pin = 34
+	P1_03 Pin = 35
+	P1_04 Pin = 36
+	P1_05 Pin = 37
+	P1_06 Pin = 38
+	P1_07 Pin = 39
+	P1_08 Pin = 40
+	P1_09 Pin = 41
+	P1_10 Pin = 42
+	P1_11 Pin = 43
+	P1_12 Pin = 44
+	P1_13 Pin = 45
+	P1_14 Pin = 46
+	P1_15 Pin = 47
+)
diff --git a/src/machine/machine_nrf52840.go b/src/machine/machine_nrf52840.go
index f0a59f54..195c4f94 100644
--- a/src/machine/machine_nrf52840.go
+++ b/src/machine/machine_nrf52840.go
@@ -7,58 +7,6 @@ import (
 	"device/nrf"
 )
 
-// Hardware pins
-const (
-	P0_00 Pin = 0
-	P0_01 Pin = 1
-	P0_02 Pin = 2
-	P0_03 Pin = 3
-	P0_04 Pin = 4
-	P0_05 Pin = 5
-	P0_06 Pin = 6
-	P0_07 Pin = 7
-	P0_08 Pin = 8
-	P0_09 Pin = 9
-	P0_10 Pin = 10
-	P0_11 Pin = 11
-	P0_12 Pin = 12
-	P0_13 Pin = 13
-	P0_14 Pin = 14
-	P0_15 Pin = 15
-	P0_16 Pin = 16
-	P0_17 Pin = 17
-	P0_18 Pin = 18
-	P0_19 Pin = 19
-	P0_20 Pin = 20
-	P0_21 Pin = 21
-	P0_22 Pin = 22
-	P0_23 Pin = 23
-	P0_24 Pin = 24
-	P0_25 Pin = 25
-	P0_26 Pin = 26
-	P0_27 Pin = 27
-	P0_28 Pin = 28
-	P0_29 Pin = 29
-	P0_30 Pin = 30
-	P0_31 Pin = 31
-	P1_00 Pin = 32
-	P1_01 Pin = 33
-	P1_02 Pin = 34
-	P1_03 Pin = 35
-	P1_04 Pin = 36
-	P1_05 Pin = 37
-	P1_06 Pin = 38
-	P1_07 Pin = 39
-	P1_08 Pin = 40
-	P1_09 Pin = 41
-	P1_10 Pin = 42
-	P1_11 Pin = 43
-	P1_12 Pin = 44
-	P1_13 Pin = 45
-	P1_14 Pin = 46
-	P1_15 Pin = 47
-)
-
 // Get peripheral and pin number for this GPIO pin.
 func (p Pin) getPortPin() (*nrf.GPIO_Type, uint32) {
 	if p >= 32 {