diff -r d9c5eaf85fab -r 48f29a1d43d6 src/hp34comm.cpp
--- a/src/hp34comm.cpp	Mon Oct 04 21:14:39 2021 +0200
+++ b/src/hp34comm.cpp	Mon Oct 04 21:15:35 2021 +0200
@@ -30,6 +30,15 @@
 }
 
 
+void HPSerial::reset(void)
+{
+	sendbuf.reset();
+	cmdbuf.reset();
+	cur_state = STATE_IDLE;
+	cur_gstate = GSTATE_IDLE;
+}
+
+
 // SEND related methods
 void HPSerial::sendkey(uint8_t keycode)
 {