Lab-1-WENXI-WEI-worked-with-YANGBO-ZHOU

3.2 code.py

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+## ESE519 lab1 part 3.2
+
+import time
+import board
+from adafruit_apds9960.apds9960 import APDS9960
+import neopixel
+
+pixels = neopixel.NeoPixel(board.NEOPIXEL, 1)
+
+i2c = board.STEMMA_I2C()
+apds = APDS9960(i2c)
+apds.enable_color = True
+apds.color_integration_time = 10
+
+while True:
+    # wait for color data to be ready
+    while not apds.color_data_ready:
+        time.sleep(0.005)
+
+    # get the data and print the different channels
+    r, g, b, c = apds.color_data
+    print("red: ", r)
+    print("green: ", g)
+    print("blue: ", b)
+    print("clear: ", c)
+
+
+
+    pixels.fill((0, g/257, 0))

4.4 code.py

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+# ESE519 lab1 part 4.4
+
+# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
+# SPDX-License-Identifier: MIT
+import time
+import board
+import digitalio
+import usb_hid
+from adafruit_apds9960.apds9960 import APDS9960
+from adafruit_hid.keyboard import Keyboard
+from adafruit_hid.keyboard_layout_us import KeyboardLayoutUS
+from adafruit_hid.keycode import Keycode
+
+
+keyboard = Keyboard(usb_hid.devices)
+keyboard_layout = KeyboardLayoutUS(keyboard)
+
+i2c = board.STEMMA_I2C()
+
+apds = APDS9960(i2c)
+apds.enable_proximity = True
+apds.enable_gesture = True
+
+# Uncomment and set the rotation if depending on how your sensor is mounted.
+# apds.rotation = 270 # 270 for CLUE
+
+keyboard = Keyboard(usb_hid.devices)
+keyboard_layout = KeyboardLayoutUS(keyboard)
+
+i2c = board.STEMMA_I2C()
+
+apds = APDS9960(i2c)
+
+apds.enable_proximity = True
+apds.enable_gesture = True
+
+# Uncomment and set the rotation if depending on how your sensor is mounted.
+# apds.rotation = 270 # 270 for CLUE
+time.sleep(3)
+keyboard_layout.write("There is a 'variant' in the matrix. Please try to fix it.\n")
+keyboard_layout.write("Use your gesture to control the cursor.\n")
+keyboard_layout.write('''
+0 0 0 0 0 0 0 0
+0 0 0 0 1 0 0 0
+0 0 0 0 0 0 0 0
+0 0 0 0 0 0 0 0''')
+
+count = 0
+
+while True:
+    dist = apds.proximity
+    print(dist)
+
+    if dist == 6:
+        count = count + 1
+        print("count: ", count)
+        if count > 20:
+            keyboard.send(Keycode.BACKSPACE)
+            keyboard.send(Keycode.ZERO)
+            break
+
+    gesture = apds.gesture()
+
+    if gesture == 0x01:
+        print("up")
+        keyboard.send(Keycode.UP_ARROW)
+        count = 0
+    if gesture == 0x02:
+        print("down")
+        keyboard.send(Keycode.DOWN_ARROW)
+        count = 0
+    if gesture == 0x03:
+        print("left")
+        keyboard.send(Keycode.LEFT_ARROW)
+        count = 0
+    if gesture == 0x04:
+        print("right")
+        keyboard.send(Keycode.RIGHT_ARROW)
+        count = 0
+
+

README.md

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 University of Pennsylvania, ESE 5190: Intro to Embedded Systems, Lab 1
 
-    (TODO) YOUR NAME HERE
-        (TODO) LinkedIn, personal website, twitter, etc.
-    Tested on: (TODO) MacBook Pro (14-inch, 2021), macOS Monterey 12.5.1
+    Wenxi Wei
+    [email protected]
+    Tested on:  XiaoXinPro 16ACH 2021
 
-(TODO: Your README)
+`Part 3.3:` In this part, color sensor in APDS-9960 will send signal to RP2040. Thus, RGB LED in RP2040 tracks the brightness reading from APDS-9960. The gif figure below shows LED changes with the brightness of the firefly.
 
-Include lab questions, screenshots, analysis, etc. (Remember, this is public, so don't put anything here you don't want to share with the world.)
+![ezgif com-gif-maker](https://user-images.githubusercontent.com/114196821/192076377-db8b936e-9183-4e12-8b6a-1d76c5bbd428.gif)
+
+
+`Part 4.4:` In this part, we designed a game. Computer generates a matrix with all 0 except one 1. As cursor move up, down, left or right in the matrix according to gesture tested by APDS-9960, users can use gesture to move cursor to approach 1. After approaching 1, users move finger twice around APDS-9960, the keyboard will delete 1 and type 0. At the end of the game, all elements in matrix are 0.
+
+![4 4 gif](https://user-images.githubusercontent.com/114196821/192076289-c3b3bcab-0912-4a18-842c-9e16174ceb31.gif)
+
+`The embedded system of part 4.4 and how components interact:` To realize the interaction between components, the most important part is I2C protocol shows in figure 1-1. I2C protocol uses 2 wires called SCL and SDA to transmit signals between master component (RP2040) and slave component (APDS9960). SCL is serial clock pin and SDA is serial data pin. When the SCL is high potential, SDA will jump from high potential to low potential, that is, the slave will enter to the waiting state to receive the address bit (as shown in figure 1-2). Figure 1-3 clarifies the signal transmission: Part 1 is starting command. If the command of part 1 is issued, the slave’s address in part 2 will be read or written which is controlled by part 3. After the master finishes addressing, it will wait for the slave response ACK signal (part 4). Part 5 is the register address inside the sensor. In 4.4 design, the gesture information is stored in this register. In summary, I2C protocol is a widely used. If we need to connect multiple master slave devices, it will make the operation simple and efficient.
+
+![Diagram of Embedded System](https://user-images.githubusercontent.com/114196821/192072496-b77cf929-3127-44ef-bafc-c4550b65efbe.jpg)