diff --git a/platforms/firmata/client/client_test.go b/platforms/firmata/client/client_test.go
index be72dbb3..fd4a175e 100644
--- a/platforms/firmata/client/client_test.go
+++ b/platforms/firmata/client/client_test.go
@@ -232,7 +232,7 @@ func TestServoConfig(t *testing.T) {
 		result      error
 	}{
 		{
-			description: "Mix values for min & max",
+			description: "Min values for min & max",
 			arguments:   [3]int{9, 0, 0},
 			expected:    []byte{0xF0, 0x70, 9, 0, 0, 0, 0, 0xF7},
 		},
diff --git a/platforms/firmata/firmata_adaptor.go b/platforms/firmata/firmata_adaptor.go
index 6f0185d0..26b89792 100644
--- a/platforms/firmata/firmata_adaptor.go
+++ b/platforms/firmata/firmata_adaptor.go
@@ -116,7 +116,7 @@ func (f *FirmataAdaptor) Port() string { return f.port }
 // Name returns the  FirmataAdaptors name
 func (f *FirmataAdaptor) Name() string { return f.name }
 
-// ServoConfig sets the PWM minimum and maximum for a pin
+// ServoConfig sets the pulse width in microseconds for a pin attached to a servo
 func (f *FirmataAdaptor) ServoConfig(pin string, min, max int) error {
 	p, err := strconv.Atoi(pin)
 	if err != nil {