@@ -266,7 +266,7 @@ const
 void FirmataMarshaller::sendPinStateQuery(uint8_t pin)
 const
 {
-  sendSysex(PIN_STATE_QUERY, 1, &pin);
+  sendSysex(PIN_STATE_QUERY, sizeof(pin), &pin);
 }
 
 /**
@@ -298,3 +298,14 @@ const
 {
   sendSysex(STRING_DATA, strlen(string), (uint8_t *)string);
 }
+
+/**
+ * The sampling interval sets how often analog data and i2c data is reported to the client.
+ * @param interval_ms The interval (in milliseconds) at which to sample
+ * @note The default sampling interval is 19ms
+ */
+void FirmataMarshaller::setSamplingInterval(uint16_t interval_ms)
+const
+{
+  sendSysex(SAMPLING_INTERVAL, sizeof(interval_ms), &interval_ms);
+}
@@ -52,6 +52,7 @@ class FirmataMarshaller
     void sendPinStateQuery(uint8_t pin) const;
     void sendString(const char *string) const;
     void sendSysex(uint8_t command, size_t bytec, uint8_t *bytev) const;
+    void setSamplingInterval(uint16_t interval_ms) const;
 
   private:
     /* utility methods */
Original file line number	Diff line number	Diff line change
@@ -266,7 +266,7 @@ const
266	266	void FirmataMarshaller::sendPinStateQuery(uint8_t pin)
267	267	const
268	268	{
269		- sendSysex(PIN_STATE_QUERY, 1, &pin);
	269	+ sendSysex(PIN_STATE_QUERY, sizeof(pin), &pin);
270	270	}
271	271
272	272	/**
@@ -298,3 +298,14 @@ const
298	298	{
299	299	sendSysex(STRING_DATA, strlen(string), (uint8_t *)string);
300	300	}
	301	+
	302	+ /**
	303	+ * The sampling interval sets how often analog data and i2c data is reported to the client.
	304	+ * @param interval_ms The interval (in milliseconds) at which to sample
	305	+ * @note The default sampling interval is 19ms
	306	+ */
	307	+ void FirmataMarshaller::setSamplingInterval(uint16_t interval_ms)
	308	+ const
	309	+ {
	310	+ sendSysex(SAMPLING_INTERVAL, sizeof(interval_ms), &interval_ms);
	311	+ }