diff --git a/platforms/firmata/firmata_adaptor.go b/platforms/firmata/firmata_adaptor.go
index 5cda0f49..8400b735 100644
--- a/platforms/firmata/firmata_adaptor.go
+++ b/platforms/firmata/firmata_adaptor.go
@@ -93,6 +93,10 @@ func (f *FirmataAdaptor) AnalogRead(pin string) int {
 	return -1
 }
 
+func (f *FirmataAdaptor) AnalogWrite(pin string, level byte) {
+	f.PwmWrite(pin, level)
+}
+
 func (f *FirmataAdaptor) digitalPin(pin int) int {
 	return pin + 14
 }