diff --git a/lambda/airgate.c b/lambda/airgate.c
index 304119e..7bb5a2d 100644
--- a/lambda/airgate.c
+++ b/lambda/airgate.c
@@ -14,12 +14,19 @@
 
 #include "usart.h"
 
+#define MIN_SPEED 150
+#define MAX_SPEED 20
+// 1 = full step, 2 = half step, 3 = 1/4 step, 4 = 8 microsteps, ...
+#define SCALE 3
+
 // TODO pins
 
 static int8_t dir = 0;
 static uint16_t pos = 0;
 static uint16_t steps = 0;
-static uint8_t speed = 255;
+static uint16_t done = 0;
+static uint16_t ramp = 0;
+static uint8_t speed = MIN_SPEED;
 
 static void start(void) {
 	if (bit_is_clear(PORTC, PC5)) {
@@ -36,7 +43,7 @@
 	}
 	// setup time
 	_delay_us(1);
-	// set speed
+	// set start speed
 	OCR2A = speed;
 	// start timer2
 	TCCR2B |= (1 << CS22) | (1 << CS21);
@@ -53,8 +60,13 @@
 		PORTB ^= (1 << PB7);
 		pos += dir;
 		steps--;
+		done++;
+		if (done < ramp && speed > MAX_SPEED) --speed;
+		if (steps < ramp && speed < MIN_SPEED) ++speed;
+		OCR2A = speed;
 	} else {
 		stop();
+		done = 0;
 		if (pos == 0) {
 			// driver sleep mode
 			PORTC &= ~(1 << PC5);
@@ -64,14 +76,17 @@
 
 void setAirgate(uint8_t const position) {
 	stop();
-	int16_t diff = (((int16_t)position) << 1) - pos;
+	done = 0;
+	int16_t diff = (((int16_t)position) << SCALE) - pos;
 	if (diff != 0) {
 		dir = MAX(-1, MIN(diff, 1));
 		steps = abs(diff);
+		speed = MIN_SPEED;
+		ramp = MIN(MIN_SPEED - MAX_SPEED, steps >> 1);
 		start();
 	}
 }
 
 uint8_t getAirgate(void) {
-	return pos >> 1;
+	return 100; //pos >> SCALE;
 }