Attempt to make a protocol

2026-06-09 00:28:05 -06:00 · 2024-06-12 23:37:33 -06:00
parent 54fc2d6cc8
commit 830cec1690
14 changed files with 300 additions and 0 deletions
@@ -0,0 +1,103 @@
+import time
+import board
+import digitalio
+import supervisor
+
+DATA_PIN = board.SDA
+CLK_PIN = board.SCL
+
+clock = digitalio.DigitalInOut(CLK_PIN)
+data = digitalio.DigitalInOut(DATA_PIN)
+
+def append_to_byte(byte, value):
+    return (byte << 1) | (1 if value else 0)
+
+def get_bit_from_byte(byte, bit_pos):
+    return (byte >> (7-bit_pos)) & 1
+
+
+
+def receive_data():
+    data.direction = digitalio.Direction.INPUT
+    clock.direction = digitalio.Direction.INPUT
+
+    last_byte = 0b0
+    bit_num = 0
+
+    byte_arr = []
+
+    last_clock_state = clock.value
+    while True:
+        if clock.value != last_clock_state:
+            last_clock_state = not last_clock_state
+            bit = data.value
+
+            print("1" if bit else "0", end='')
+
+            last_byte = append_to_byte(last_byte, bit)
+
+            # last_byte[bit_num] = bit
+
+            bit_num += 1
+
+            if bit_num == 8:
+                print('')
+                if last_byte == 0:
+                    break
+
+                byte_arr.append(last_byte)
+
+                bit_num = 0
+                last_byte = 0
+    return byte_arr
+
+# print(byte_arr)
+#
+# for byte in byte_arr:
+#     print(chr(byte), end='')
+
+def send_data(send_text):
+    data.direction = digitalio.Direction.OUTPUT
+    clock.direction = digitalio.Direction.OUTPUT
+
+
+    # send_text = 'This project was setup and tested using CircuitPython version 5 or higher. You will want to update your PyPortal and Libraries to match the version you are using.'
+    send_bytes = [0b11111111, 0b11111111]
+
+    for char in send_text:
+        send_bytes.append(ord(char))
+
+    send_bytes.append(0b0)
+
+    clock_state = clock.value
+
+    num = 0
+
+    for byte in send_bytes:
+        # print(bin(byte))
+        for i in range(8):
+            clock.value = clock_state
+            clock_state = not clock_state
+
+            bit = get_bit_from_byte(byte, i)
+
+            data.value = bit
+
+            # print(i, end='')
+            print("1" if bit else "0", end='')
+            num += 1
+        print("")
+
+    ## Fixes another weird bug
+    for i in range(8):
+        clock.value = clock_state
+        clock_state = not clock_state
+        data.value = False
+        time.sleep(0.01)
+
+print("Started!")
+
+byte_arr = receive_data()
+
+for byte in byte_arr:
+    print(chr(byte), end='')