Materials and Procedures

There were many variations of each, I will start with oldest to newest.

The Original Materials List

• Elegoo smart robot car v4.0
• Photoresistor module 
• Carbon monoxide module
• Temperature and Humidity sensor
• plastic platform
• Freenove 5 inch DSI screen
• GPIO extension board
• breadboard
• GPIO extension cable
• Raspberry pi 4 model b+
• jumper wires

The Original Procedure

• Assemble the robot following the instructions in the kit
• add the plastic platform using the support pillars and screws
• attach the rpi and screen to the platform
• wire the sensors 
• code the sensors
• attach the battery to the platform with screws
• test the robot by driving it in light and dark, cold and hot, and place a lit match near the carbon monoxide detector

 As you can see, these are a bit patchy.

Materials (Updated version)

• Elegoo smart robot car v4.0 with camera module
• Photoresistor module 
• carbon monoxide module (Flying fish module)
• Temperature and Humidity sensor module
• chalkboard platform
• breadboard
• Arduino UNO
• computer
• jumper wires hardware

Procedure (Updated Version)

• assemble the robot
• ad the platform with screws and bolts 
• wire the sensors 
• code the sensors
• fix the UNO to the platform
• test the robot (driving in light and dark, cold and hot, place it by a lit match

Still quite patchy but it worked for a bit.

Materials (take 3)

• 16-2 LCD (Liquid Crystal Display) screen
• m7 Photoresistor module
• Flying Fish carbon monoxide module
• DHT11 Temperature and Humidity sensor
• a green LED
• an active buzzer
• a potentiometer
• 220khm resistor (5 band)
• Arduino UNO
• Raspberry Pi case
• double sided tape
• jumper wires
• mini chalkboard
• hardware
• Elegoo v4.0 smart robot car kit 
• a drill
• a computer
• Arduino cord
• battery pack
• 8 AA batteries

Procedure (take 3)

• Assemble the Elegoo kit
• drill holes in the top platform and the chalkboard
• secure the chalkboard on top of the platform using 4 screws,  8 nuts, and 8 washers
• secure the breadboard onto the surface of the chalkboard with double sided tape
• put double sided tape on the bottom of the battery pack (with batteries in it) and fix it to the robot car
• secure the Arduino to the bottom of the Pi case using two small screws
• fix the Pi case and Arduino across from the breadboard with double sided tape
• wire the Photoresistor module and LED
  • Photoresistor pin AO to analog zero (A0) on Arduino
  • pin DO to LED anode (positive) pin
  • pin GND to negative column on the breadboard (ground)
  • pin VCC to positive column on the breadboard (voltage, 5v)
  • LED cathode pin to negative  column on breadboard
• Wire the DHT11 temperature/humidity sensor 
  • -pin to negative column 
  • out pin to pin 7 on Arduino
  • + pin to positive column on breadboard
• Wire the CO module and active buzzer
  • module pin DO to Arduino to digital pin 8 
  • GND pin to negative column
  • VCC pin to positive column
  • buzzer positive pin to digital pin ~9 on Arduino
  • buzzer negative pin to negative column
• Wire the LCD, resistor, and potentiometer
  • LCD pin 1 to negative
  • LCD pin 2 to positive
  • LCD pin 3 to middle of potentiometer 
  • LCD pin 4 to digital pin 12
  • LCD pin 5 to negative
  • LCD pin 6 to digital pin ~11
  • LCD pins 7-10, nothing
  • LCD pin 11 to digital pin ~5
  • LCD pin 12 to digital pin 4 
  • LCD pin 13 to digital pin ~3
  • LCD pin 14 to digital pin 2
  • LCD pin 15 to resistor to positive
  • LCD pin 16 to negative
  • Potentiometer left pin to positive 
  • Potentiometer right pin to negative
  • Potentiometer middle pin to LCD pin 3
• Wire the Arduino to the breadboard
  • Super simple, just 5v to positive and GND to negative
• Write the code
• Upload the code
• connect for testing
• test the robot
• record results