arduino_setup - AESD-Course-Project/AESD-Course-Project.github.io GitHub Wiki

- Arduino Nano 33 BLE Sense board
- OV7675 Camera
- Arduino Tiny Machine Learning Shield
- USB A to Micro USB Cable

• HARDWARE Setup Instructions

  • If you are using the TinyML Shield

    • Slot the Nano 33 BLE Sense board into the Tiny Machine Learning Shield.

      • 
      • 

    • Slot the OV7675 camera module into the shield using the same technique.

      • 
      • 

    • Finally, use the provided USB cable (type-A to microB) to connect the Nano 33 BLE Sense development board to your machine.

      • 

  • Wiring Up Individual Parts

    • Slot the Nano 33 BLE Sense board into a solderless breadboard.

      • 

    • Attach a few headers to OV7675 camera.

      • 

    • Below we’ve mapped these OV7675 module pin numbers onto a fritzing (wiring) diagram for the Arduino Nano 33 BLE sense (assuming it is placed into a breadboard):

      • 

    • Below is the general pinout for Arduino IDE

      • 

    • Pins should be connected as follows

    • Table of Pins Connections

Description	Camera Module Pin	Microcontroller Board Pin
VCC / 3.3V	1	3.3V
GND	2	GND
SIOC / SCL	3	SCL / A5
SIOD / SDA	4	SDA / A4
VSYNC / VS	5	D8
HREF / HS	6	A1
PCLK / 3.3V	7	A0
XCLK	8	D9
D7	9	D4
D6	10	D6
D5	11	D5
D4	12	D3
D3	13	D2
D2 / 3.3V	14	D0/RX
D1 (may be labeled D0)	15	D1/TX
D0 (may be labeled D1)¹	16	D10
NC	17	--
NC	18	--
PEN / RST	19	A2
PWDN / PDN	20	A3

• Final Layout
  • 

Driver and Libraries Installation for Arduino Setup

• Install Dependencies

sudo apt-get update -y 
sudo apt-get upgrade -y 
sudo apt-get install -y wget
sudo apt-get install -y tar
sudo apt-get install -y curl

• Download IDE and setup environemnt variables

CURR_DIR=$(pwd)
INSTALL_DIR=${HOME}
ARDUINO_VERSION=1.8.10
wget -N https://downloads.arduino.cc/arduino-$ARDUINO_VERSION-linuxaarch64.tar.xz --no-check-certificate
tar -C $INSTALL_DIR/ -xvf arduino-${ARDUINO_VERSION}-linuxaarch64.tar.xz
cd $INSTALL_DIR/arduino-${ARDUINO_VERSION}
sudo ./install.sh
./arduino-linux-setup.sh "$USER"
echo "You can delete the tar file if desired: arduino-"${ARDUINO_VERSION}"-linuxaarch64.tar.xz"

• A REBOOT WOULD BE NEEDED AFTER THIS STEP

• Download Arduino CLI

CURR_DIR=$(pwd)
INSTALL_DIR=${HOME}
ARDUINO_VERSION=1.8.10
cd $INSTALL_DIR
curl -fsSL https://raw.githubusercontent.com/arduino/arduino-cli/master/install.sh | BINDIR=. sh
sudo chmod +x arduino-cli

• Attach Camera, Shield to Arduino IDE

• Setup Camera to talk to Arduino and attach the TinyML Shield to Jetson Nano

CURR_DIR=$(pwd)
INSTALL_DIR=${HOME}
ARDUINO_VERSION=1.8.10
cd $INSTALL_DIR
PORT="/dev/ttyACM0"
BOARD_NAME="Arduino Nano 33 BLE"
FQBN="arduino:mbed:nano33ble"
ARDUINO_CORE="arduino:mbed"


./arduino-cli core install ${ARDUINO_CORE}

./arduino-cli config init

./arduino-cli config set library.enable_unsafe_install true

./arduino-cli lib install "[email protected]"

./arduino-cli lib install --git-url "https://github.com/arpit6232/arduino-library.git"

./arduino-cli lib install "[email protected]"

./arduino-cli lib install "[email protected]"

TEST_CAMERA_DIR="${INSTALL_DIR}/Arduino/libraries/arduino-library/examples/test_camera"

./arduino-cli compile -b ${FQBN} ${TEST_CAMERA_DIR} -v

sudo ./arduino-cli upload -b ${FQBN} -p ${PORT} ${TEST_CAMERA_DIR} -v

sudo ./arduino-cli board attach serial:///dev/ttyACM0 ${TEST_CAMERA_DIR}

TEST_CAMERA_DIR="${INSTALL_DIR}/Arduino/libraries/arduino-library/examples/test_camera"

• Check to see if the Camera is working by testing output over /dev/ttyACM0

sudo stty -F /dev/ttyACM0 raw 115200
cat /dev/ttyACM0 > raw_points.txt