/pico-tflmicro

Pico TensorFlow Lite Port

Primary LanguageC++

PICO Arducam Examples

Table of Contents

Getting started

Tips: If you don't want to compile, you can use the above pre-built uf2 file, you only need to wire the hardware and download uf2 to the device.

Bin Description
person_detection_int8.uf2 This is an application of person_detection.
Classify Images captured by a camera to recognize if a person is in the camera input or not.
person_detection_benchmark.uf2 This is the benchmark program of person_detection, you can use it to test the performance of person_detection on pico.
micro_speech.uf2 This is an application of Wake word detection.
Use a pre-trained speech detection model to provide always-on wake-word detection.
pico4ml_magic_wand.uf2 This is an application of the magic wand used to recognize gestures through an accelerometer. (Suitable for Arducam Pico4ML )
pico4ml_ble_magic_wand.uf2 This is an application of the magic wand used to recognize gestures through an accelerometer.(Suitable for Arducam Pico4ML-BLE).
magic_wand_ble.uf2 This is an application of the magic wand used to recognize gestures through an accelerometer. (Suitable for Arducam Pico4ML-BLE).

See Getting Started with the Raspberry Pi Pico and the README in the pico-sdk for information on getting up and running.

Quick Pico Setup

If you are developing for Raspberry Pi Pico on the Raspberry Pi 4B, or the Raspberry Pi 400, most of the installation steps in this Getting Started guide can be skipped by running the setup script. You can get this script by doing the following:

git clone https://github.com/raspberrypi/pico-setup.git

Then run:

 pico-setup/pico_setup.sh

The script will:

  • Create a directory called pico
  • Install required dependencies
  • Download the pico-sdk, pico-examples, pico-extras, and pico-playground repositories
  • Define PICO_SDK_PATH, PICO_EXAMPLES_PATH, PICO_EXTRAS_PATH, and PICO_PLAYGROUND_PATH in your ~/.bashrc
  • Build the blink and hello_world examples in pico-examples/build/blink and pico-examples/build/hello_world
  • Download and build picotool (see Appendix B). Copy it to /usr/local/bin. • Download and build picoprobe (see Appendix A).
  • Download and compile OpenOCD (for debug support)
  • Download and install Visual Studio Code
  • Install the required Visual Studio Code extensions (see Chapter 6 for more details)
  • Configure the Raspberry Pi UART for use with Raspberry Pi Pico

Once it has run, you will need to reboot your Raspberry Pi,

sudo reboot

Person Detection

  • Download pico-tflmicro
git clone --recursive https://github.com/ArduCam/pico-tflmicro.git 
# or
git clone https://github.com/ArduCam/pico-tflmicro.git 
git submodule update --init --recursive
  • Compile
cd pico-tflmicro
mkdir build 
cd build 
cmake ..

tflmicro_cmake_output

make
# or only make person_detection_int8

tflmicro_make_output Then you will creat some files under pico-tflmicro/tflmicro/build/examples/person_detection path

Bin Description
person_detection_int8.uf2 This is the main program of person_detection, which can be dragged onto the RP2040 USB Mass Storage Device.
person_detection_benchmark.uf2 This is the benchmark program of person_detection, you can use it to test the performance of person_detection on pico.
Tips: If you don't want to compile, you can use the above pre-built uf2 file, you only need to wire the hardware and download uf2 to the device.

persond_build

Test Person Detection

App Description
person_detection_int8 This is a person detection demo.
  • Hardware requirements

pico4ml

Learn more here: pico4ml-an-rp2040-based-platform-for-tiny-machine-learning

  • Load and run person_detection

    The simplest method to load software onto a RP2040-based board is by mounting it as a USB Mass Storage Device. Doing this allows you to drag a file onto the board to program the flash. Go ahead and connect the Raspberry Pi Pico to your Raspberry Pi using a micro-USB cable, making sure that you hold down the BOOTSEL button to force it into USB Mass Storage Mode. bootsel

If you are logged in via ssh for example, you may have to mount the mass storage device manually:

$ dmesg | tail
[ 371.973555] sd 0:0:0:0: [sda] Attached SCSI removable disk
$ sudo mkdir -p /mnt/pico
$ sudo mount /dev/sda1 /mnt/pico

If you can see files in /mnt/pico then the USB Mass Storage Device has been mounted correctly:

$ ls /mnt/pico/
INDEX.HTM INFO_UF2.TXT

Copy your person_detection_int8.uf2 onto RP2040:

sudo cp examples/person_detection/person_detection_int8.uf2 /mnt/pico
sudo sync

View output

The person detection example outputs some information through usb, you can use minicom to view:

minicom -b 115200 -o -D /dev/ttyACM0

minicom_output_person

The person detection example also outputs the image data and person detection results to the UART, and you can see them directly on the screen.

person_screen no_person_screen

Micro Speech

  • Download pico-tflmicro
git clone --recursive https://github.com/ArduCam/pico-tflmicro.git 
# or
git clone https://github.com/ArduCam/pico-tflmicro.git 
git submodule update --init --recursive
  • Compile
cd pico-tflmicro
mkdir build 
cd build 
cmake ..

tflmicro_cmake_output

make
# or only make micro_speech

tflmicro_make_output Then you will creat some files under pico-tflmicro/tflmicro/build/examples/micro_speech path

Bin Description
micro_speech.uf2 This is the main program of micro_speech, which can be dragged onto the RP2040 USB Mass Storage Device.

Tips: If you don't want to compile, you can use the above pre-built uf2 file, you only need to wire the hardware and download uf2 to the device.

speech_build

Test Micro Speech

App Description
micro_speech This is a micro speech demo.
  • Hardware requirements

pico4ml

Learn more here: pico4ml-an-rp2040-based-platform-for-tiny-machine-learning

  • Load and run micro_speech

    The simplest method to load software onto a RP2040-based board is by mounting it as a USB Mass Storage Device. Doing this allows you to drag a file onto the board to program the flash. Go ahead and connect the Raspberry Pi Pico to your Raspberry Pi using a micro-USB cable, making sure that you hold down the BOOTSEL button to force it into USB Mass Storage Mode. bootsel

If you are logged in via ssh for example, you may have to mount the mass storage device manually:

$ dmesg | tail
[ 371.973555] sd 0:0:0:0: [sda] Attached SCSI removable disk
$ sudo mkdir -p /mnt/pico
$ sudo mount /dev/sda1 /mnt/pico

If you can see files in /mnt/pico then the USB Mass Storage Device has been mounted correctly:

$ ls /mnt/pico/
INDEX.HTM INFO_UF2.TXT

Copy your micro_speech.uf2 onto RP2040:

sudo cp examples/micro_speech/micro_speech.uf2 /mnt/pico
sudo sync

View output

The micro speech example outputs some information through usb, you can use minicom to view:

minicom -b 115200 -o -D /dev/ttyACM0

minicom_output_speech

The micro speech example also outputs the results to the screen.

Magic Wand

  • Download pico-tflmicro
git clone --recursive https://github.com/ArduCam/pico-tflmicro.git 
# or
git clone https://github.com/ArduCam/pico-tflmicro.git 
git submodule update --init --recursive
  • Compile
cd pico-tflmicro
mkdir build 
cd build 
cmake ..

tflmicro_cmake_output

make

or only make pico4ml_magic_wandi f you use the Pico4ML if you use the Pico4ML-BLE please make pico4ml_ble_magic_wand

tflmicro_make_output Then you will creat some files under pico-tflmicro/tflmicro/build/examples/magic_wand path

Bin Description
pico4ml_magic_wand.uf2 This is the main program of magic_wand, which can be dragged onto the RP2040 USB Mass Storage Device(Arducam Pico4ML).
pico4ml_ble_magic_wand.uf2 This is the main program of magic_wand, which can be dragged onto the RP2040 USB Mass Storage Device(Arducam Pico4ML-BLE).
Tips: If you don't want to compile, you can use the above pre-built uf2 file, you only need to wire the hardware and download uf2 to the device.

wand_build

Test Magic Wand

App Description
magic_wand This is a magic wand demo.
  • Hardware requirements

pico4ml

Learn more here: pico4ml-an-rp2040-based-platform-for-tiny-machine-learning

  • Load and run magic_wand

    The simplest method to load software onto a RP2040-based board is by mounting it as a USB Mass Storage Device. Doing this allows you to drag a file onto the board to program the flash. Go ahead and connect the Raspberry Pi Pico to your Raspberry Pi using a micro-USB cable, making sure that you hold down the BOOTSEL button to force it into USB Mass Storage Mode. bootsel

If you are logged in via ssh for example, you may have to mount the mass storage device manually:

$ dmesg | tail
[ 371.973555] sd 0:0:0:0: [sda] Attached SCSI removable disk
$ sudo mkdir -p /mnt/pico
$ sudo mount /dev/sda1 /mnt/pico

If you can see files in /mnt/pico then the USB Mass Storage Device has been mounted correctly:

$ ls /mnt/pico/
INDEX.HTM INFO_UF2.TXT

Copy your pico4ml_magic_wand.uf2 or pico4ml_ble_magic_wand.uf2 onto RP2040:

sudo cp examples/magic_wand/pico4ml_magic_wand.uf2 /mnt/pico 
# or sudo cp examples/magic_wand/pico4ml_ble_magic_wand.uf2 /mnt/pico 
sudo sync

View output

The magic wand example outputs some information through usb, you can use minicom to view:

minicom -b 115200 -o -D /dev/ttyACM0

minicom_output_wand

The magic wand example also outputs the results to the screen.

Ring

Wing

Ring

Magic Wand Ble

  • Download pico-tflmicro
git clone --recursive https://github.com/ArduCam/pico-tflmicro.git 
# or
git clone https://github.com/ArduCam/pico-tflmicro.git 
git submodule update --init --recursive
  • Compile
cd pico-tflmicro
mkdir build 
cd build 
cmake ..

tflmicro_cmake_output

make
# or only make  magic_wand_ble

tflmicro_make_output Then you will creat some files under pico-tflmicro/tflmicro/build/examples/magic_wand path

Bin Description
magic_wand_ble.uf2 This is the main program of magic_wand_ble, which can be dragged onto the RP2040 USB Mass Storage Device.

Tips: If you don't want to compile, you can use the above pre-built uf2 file, you only need to wire the hardware and download uf2 to the device.

wand_build_lab

Test Magic Wand Ble

App Description
magic_wand_ble This is a magic wand demo.
  • Hardware requirements

pico4ml

Learn more here: pico4ml-an-rp2040-based-platform-for-tiny-machine-learning

  • Load and run magic_wand_ble

    The simplest method to load software onto a RP2040-based board is by mounting it as a USB Mass Storage Device. Doing this allows you to drag a file onto the board to program the flash. Go ahead and connect the Raspberry Pi Pico to your Raspberry Pi using a micro-USB cable, making sure that you hold down the BOOTSEL button to force it into USB Mass Storage Mode. bootsel

If you are logged in via ssh for example, you may have to mount the mass storage device manually:

$ dmesg | tail
[ 371.973555] sd 0:0:0:0: [sda] Attached SCSI removable disk
$ sudo mkdir -p /mnt/pico
$ sudo mount /dev/sda1 /mnt/pico

If you can see files in /mnt/pico then the USB Mass Storage Device has been mounted correctly:

$ ls /mnt/pico/
INDEX.HTM INFO_UF2.TXT

Copy your magic_wand_ble.uf2 onto RP2040:

sudo cp examples/magic_wand/magic_wand_ble.uf2 /mnt/pico
sudo sync

View output

The magic wand example outputs some information through usb, you can use minicom to view:

minicom -b 115200 -o -D /dev/ttyACM0

minicom_output_wand

The magic wand example also outputs the results to the screen.