From 9f0cf3fece157458e9a141bd62ef85f3fc9e55dd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Je=CC=81re=CC=81mie=20DUCASTEL?= <jeremie@ducastel.name>
Date: Sun, 12 Jul 2020 21:30:59 +0200
Subject: [PATCH] ringbit remote controlled car
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bouton A+B pour avancer
bouton A seul pour tourner à gauche
bouton B seul pour tourner à droite
---
 ringbit_car.py        | 66 +++++++++++++++++++++++++++++++++++++++++++
 ringbit_controller.py | 16 +++++++++++
 2 files changed, 82 insertions(+)
 create mode 100644 ringbit_car.py
 create mode 100644 ringbit_controller.py

diff --git a/ringbit_car.py b/ringbit_car.py
new file mode 100644
index 0000000..52ef7c5
--- /dev/null
+++ b/ringbit_car.py
@@ -0,0 +1,66 @@
+import microbit
+import radio
+
+# https://www.firialabs.com/blogs/lab-notes/continuous-rotation-servos-with-python-and-the-micro-bit
+
+class MicrobitCServo:
+    """ Microbit continuous servo controller """
+    
+    def __init__(self, pin):
+        self.pin = pin
+        
+    def clockwise(self):
+        self.pin.write_analog(1023 * 1.0 / 20)
+        
+    def counterclockwise(self):
+        self.pin.write_analog(1023 * 2.0 / 20)
+        
+    def stop(self):
+        # self.pin.write_analog(0)
+        self.pin.write_analog(1023 * 1.5 / 20)
+
+class RingCar:
+    
+    def __init__(self):
+        self.left_pin = microbit.pin1
+        self.right_pin = microbit.pin2
+        self.left = MicrobitCServo(self.left_pin)
+        self.right = MicrobitCServo(self.right_pin)
+        self.left.go = self.left.counterclockwise
+        self.right.go = self.right.clockwise
+        self.channel = 77
+
+    def forward(self):
+        self.left.go()
+        self.right.go()
+    
+    def stop(self):
+        self.left.stop()
+        self.right.stop()
+        
+    def go_left(self):
+        self.left.stop()
+        self.right.go()
+        microbit.display.show('a')
+    
+    def go_right(self):
+        self.right.stop()
+        self.left.go()
+        microbit.display.show('b')
+        
+    def radio_controlled(self):
+        radio.config(channel = self.channel)
+        radio.on()
+        while True:
+            order = radio.receive()
+            if order == 'go':
+                self.forward()
+            elif order == 'left':
+                self.go_left()
+            elif order == 'right':
+                self.go_right()
+            else:
+                self.stop()
+
+car = RingCar()
+car.radio_controlled()
\ No newline at end of file
diff --git a/ringbit_controller.py b/ringbit_controller.py
new file mode 100644
index 0000000..8b60f8e
--- /dev/null
+++ b/ringbit_controller.py
@@ -0,0 +1,16 @@
+# emetteur radio microbit
+from microbit import *
+import radio
+
+radio.config(channel=77)
+radio.on()
+
+display.scroll('on')
+
+while True:
+    if button_a.is_pressed() and button_b.is_pressed():
+        radio.send('go')
+    elif button_a.is_pressed():
+        radio.send('left')
+    elif button_b.is_pressed():
+        radio.send('right')
\ No newline at end of file