From e363a0d6ab03c6f5faf1f5bb73e9f3a419599af4 Mon Sep 17 00:00:00 2001
From: Alan Wang <44191076+alankrantas@users.noreply.github.com>
Date: Wed, 12 Jan 2022 12:56:04 +0800
Subject: [PATCH] Update rc_car.py

---
 rc_car/rc_car.py | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/rc_car/rc_car.py b/rc_car/rc_car.py
index 49cda96..b8e1200 100644
--- a/rc_car/rc_car.py
+++ b/rc_car/rc_car.py
@@ -1,6 +1,7 @@
 # For the micro:bit RC car
 
 RADIO_CHANNEL = 42  # radio channel: 0~255
+SPEED = 1023  # wheel speed: 0~1023
 
 from microbit import display, Image, sleep, pin1, pin2, pin8, pin12
 import radio
@@ -27,28 +28,28 @@ while True:
     
     if direction == 'forward':
         display.show(Image.ARROW_N)
-        motor_right_A.write_digital(1)
+        motor_right_A.write_analog(SPEED)
         motor_right_B.write_digital(0)
-        motor_left_A.write_digital(1)
+        motor_left_A.write_analog(SPEED)
         motor_left_B.write_digital(0)
     elif direction == 'backward':
         display.show(Image.ARROW_S)
         motor_right_A.write_digital(0)
-        motor_right_B.write_digital(1)
+        motor_right_B.write_analog(SPEED)
         motor_left_A.write_digital(0)
-        motor_left_B.write_digital(1)
+        motor_left_B.write_analog(SPEED)
     elif direction == 'left':
         display.show(Image.ARROW_W)
         motor_right_A.write_digital(0)
-        motor_right_B.write_digital(1)
-        motor_left_A.write_digital(1)
+        motor_right_B.write_analog(SPEED)
+        motor_left_A.write_analog(SPEED)
         motor_left_B.write_digital(0)
     elif direction == 'right':
         display.show(Image.ARROW_E)
-        motor_right_A.write_digital(1)
+        motor_right_A.write_analog(SPEED)
         motor_right_B.write_digital(0)
         motor_left_A.write_digital(0)
-        motor_left_B.write_digital(1)
+        motor_left_B.write_analog(SPEED)
     else:
         display.show(Image.SQUARE)
         motor_right_A.write_digital(0)