diff --git a/src/machine/machine_atsamd21e18.go b/src/machine/machine_atsamd21e18.go
index 692be17e..fd4f5d09 100644
--- a/src/machine/machine_atsamd21e18.go
+++ b/src/machine/machine_atsamd21e18.go
@@ -58,7 +58,8 @@ func (p Pin) Set(high bool) {
 	}
 }
 
-// Get returns the current value of a GPIO pin.
+// Get returns the current value of a GPIO pin when configured as an input or as
+// an output.
 func (p Pin) Get() bool {
 	return (sam.PORT.IN0.Get()>>uint8(p))&1 > 0
 }
diff --git a/src/machine/machine_atsamd21g18.go b/src/machine/machine_atsamd21g18.go
index 82fc57fe..44cc5828 100644
--- a/src/machine/machine_atsamd21g18.go
+++ b/src/machine/machine_atsamd21g18.go
@@ -82,7 +82,8 @@ func (p Pin) Set(high bool) {
 	}
 }
 
-// Get returns the current value of a GPIO pin.
+// Get returns the current value of a GPIO pin when configured as an input or as
+// an output.
 func (p Pin) Get() bool {
 	if p < 32 {
 		return (sam.PORT.IN0.Get()>>uint8(p))&1 > 0
diff --git a/src/machine/machine_atsamd51.go b/src/machine/machine_atsamd51.go
index b7c96339..8723e82a 100644
--- a/src/machine/machine_atsamd51.go
+++ b/src/machine/machine_atsamd51.go
@@ -542,7 +542,8 @@ func (p Pin) Set(high bool) {
 	}
 }
 
-// Get returns the current value of a GPIO pin.
+// Get returns the current value of a GPIO pin when configured as an input or as
+// an output.
 func (p Pin) Get() bool {
 	group, pin_in_group := p.getPinGrouping()
 	return (sam.PORT.GROUP[group].IN.Get()>>pin_in_group)&1 > 0
diff --git a/src/machine/machine_avr.go b/src/machine/machine_avr.go
index 14ba5020..ce9b7803 100644
--- a/src/machine/machine_avr.go
+++ b/src/machine/machine_avr.go
@@ -63,7 +63,8 @@ func (p Pin) Configure(config PinConfig) {
 	}
 }
 
-// Get returns the current value of a GPIO pin.
+// Get returns the current value of a GPIO pin when the pin is configured as an
+// input or as an output.
 func (p Pin) Get() bool {
 	port, mask := p.getPortMask()
 	// As noted above, the PINx register is always two registers below the PORTx
diff --git a/src/machine/machine_esp32.go b/src/machine/machine_esp32.go
index 1c5f7ef7..90dc2c66 100644
--- a/src/machine/machine_esp32.go
+++ b/src/machine/machine_esp32.go
@@ -159,7 +159,7 @@ func (p Pin) portMaskClear() (*volatile.Register32, uint32) {
 }
 
 // Get returns the current value of a GPIO pin when the pin is configured as an
-// input.
+// input or as an output.
 func (p Pin) Get() bool {
 	if p < 32 {
 		return esp.GPIO.IN.Get()&(1<<p) != 0
diff --git a/src/machine/machine_esp8266.go b/src/machine/machine_esp8266.go
index 72c67206..7e98b597 100644
--- a/src/machine/machine_esp8266.go
+++ b/src/machine/machine_esp8266.go
@@ -106,7 +106,7 @@ func (p Pin) Configure(config PinConfig) {
 }
 
 // Get returns the current value of a GPIO pin when the pin is configured as an
-// input.
+// input or as an output.
 func (p Pin) Get() bool {
 	// See this document for details
 	// https://www.espressif.com/sites/default/files/documentation/esp8266-technical_reference_en.pdf
diff --git a/src/machine/machine_fe310.go b/src/machine/machine_fe310.go
index c4cba5e9..5fdf581d 100644
--- a/src/machine/machine_fe310.go
+++ b/src/machine/machine_fe310.go
@@ -44,7 +44,8 @@ func (p Pin) Set(high bool) {
 	}
 }
 
-// Get returns the current value of a GPIO pin.
+// Get returns the current value of a GPIO pin when the pin is configured as an
+// input or as an output.
 func (p Pin) Get() bool {
 	val := sifive.GPIO0.VALUE.Get() & (1 << uint8(p))
 	return (val > 0)
diff --git a/src/machine/machine_nrf.go b/src/machine/machine_nrf.go
index 7af22000..a288298c 100644
--- a/src/machine/machine_nrf.go
+++ b/src/machine/machine_nrf.go
@@ -17,7 +17,7 @@ const (
 	PinInput         PinMode = (nrf.GPIO_PIN_CNF_DIR_Input << nrf.GPIO_PIN_CNF_DIR_Pos) | (nrf.GPIO_PIN_CNF_INPUT_Connect << nrf.GPIO_PIN_CNF_INPUT_Pos)
 	PinInputPullup   PinMode = PinInput | (nrf.GPIO_PIN_CNF_PULL_Pullup << nrf.GPIO_PIN_CNF_PULL_Pos)
 	PinInputPulldown PinMode = PinInput | (nrf.GPIO_PIN_CNF_PULL_Pulldown << nrf.GPIO_PIN_CNF_PULL_Pos)
-	PinOutput        PinMode = (nrf.GPIO_PIN_CNF_DIR_Output << nrf.GPIO_PIN_CNF_DIR_Pos) | (nrf.GPIO_PIN_CNF_INPUT_Disconnect << nrf.GPIO_PIN_CNF_INPUT_Pos)
+	PinOutput        PinMode = (nrf.GPIO_PIN_CNF_DIR_Output << nrf.GPIO_PIN_CNF_DIR_Pos) | (nrf.GPIO_PIN_CNF_INPUT_Connect << nrf.GPIO_PIN_CNF_INPUT_Pos)
 )
 
 type PinChange uint8
@@ -64,7 +64,8 @@ func (p Pin) PortMaskClear() (*uint32, uint32) {
 	return &port.OUTCLR.Reg, 1 << pin
 }
 
-// Get returns the current value of a GPIO pin.
+// Get returns the current value of a GPIO pin when the pin is configured as an
+// input or as an output.
 func (p Pin) Get() bool {
 	port, pin := p.getPortPin()
 	return (port.IN.Get()>>pin)&1 != 0
diff --git a/src/machine/machine_stm32.go b/src/machine/machine_stm32.go
index 9acf22ae..865ab68f 100644
--- a/src/machine/machine_stm32.go
+++ b/src/machine/machine_stm32.go
@@ -51,7 +51,8 @@ func (p Pin) Set(high bool) {
 	}
 }
 
-// Get returns the current value of a GPIO pin.
+// Get returns the current value of a GPIO pin when the pin is configured as an
+// input or as an output.
 func (p Pin) Get() bool {
 	port := p.getPort()
 	pin := uint8(p) % 16