Flashing Raspberry PI os into emmc memory

For flashing use J103 mini usb connector. You do not need use any jumpers (just connect the SaraKIT USB cable to your PC Computer).

  • Download and run the Windows installer to install the drivers and boot tool.

  • Apply power to the board; Windows should now find the hardware and install the driver.

  • Once the driver installation is complete, run the RPiBoot.exe tool that was previously installed.

  • After a few seconds, the Compute Module eMMC will pop up under Windows as a disk (USB mass storage device).

(for other systems see here https://www.raspberrypi.com/documentation/computers/compute-module.html#setting-up-the-cmio-board)

Download and run Raspberry Pi Imager. With this software you can install your favorite OS or image prepared by us.

if you want to use a ready-made image, download it from here: download (64bit RaspiOS 22-09-2022) - do not forget to upload the wifi network settings file from here  (wifi config) to the boot directory, i.e. to the root directory of the drive connected to Windows.

Select the system and storage. After selecting the system and storage, click on the settings button:

Be sure to set the username and password here (the use of the PI username is not recommended).
In addition, set access to your WiFi network, without this, the device will not be able to connect to you.
Also, don't forget to check "Enable SSH".

After recording the image to disk, disconnect the power, unplug the USB and reconnect the power to the SaraKIT.

From now on, you can communicate with SaraKIT (Raspberry Pi) using your favorite program, e.g. WinScp or Visual Studio Code.

How to Find Your Pi’s IP Address from a Windows Computer on the Same Network?

  1. On a Windows computer that’s on the same network as your Pi, launch the command prompt by typing cmd into the search box and pressing Enter.
  2. In the command prompt window, type ping -f raspberrypi (or nslookup raspberrypi):

other ways: https://helpdeskgeek.com/networking/what-is-my-raspberry-pis-ip-address/

Regardless of what program you use to connect, you need to install some drivers for new devices offered by SaraKIT:

Updating your System

The camera software is under constant development. Please ensure your system is up to date prior to using these instructions.

sudo apt-get update
sudo apt-get full-upgrade 

Useful tools and drivers

//git is always needed 
sudo apt-get install git

//Pi config
sudo wget --backups=1 https://saraai.com/_SaraKIT/config.txt -P /boot/
sudo reboot

//for BLDC gimbals motors, magnetic rotary encoder, accelerometers
wget https://saraai.com/_SaraKIT/wiringpi_20220204-1_arm64.deb
sudo dpkg --force-all -i wiringpi_20220204-1_arm64.deb

sudo wget https://datasheets.raspberrypi.com/cmio/dt-blob-dualcam.bin -O /boot/dt-blob.bin
wget https://saraai.com/_SaraKIT/rpi_userspace_20211215-1_arm64.deb
sudo dpkg --force-all -i rpi_userspace_20211215-1_arm64.deb
wget --backups=1 https://saraai.com/_SaraKIT/.bashrc -P /home/pi/
sudo reboot

#export LD_LIBRARY_PATH=/opt/vc/lib/
#export PATH=$PATH:"/opt/vc/bin/"
raspistill -v -cs 0 -o testcam0.jpg
raspistill -v -cs 1 -o testcam1.jpg
more on https://www.raspberrypi.com/documentation/accessories/camera.html

//download script for download and istall prebuilt aduio driver
wget --backups=1 https://saraai.com/_SaraKIT/audio/audio_install.sh
//simply run script for download and install prebuilt aduio driver
chmod +x audio_install.sh

//After installation rpi will reboot automatically

//For now you can verify your audio
//Play test song
aplay -f S16_LE -r 16000 -c2 -Dplug:dmix SaraKit_TestSound.wav

//Record audio
arecord -d5 -f S16_LE -r 16000 -Dplug:dsnoop -c2 recorded.wav
aplay -f S16_LE -r 16000 -c2 -Dplug:dmix recorded.wav

//List output devices
aplay -l
//List input devices
arecord -l 


The easiest way to install OpenCV, Bazel and MediaPipe for Raspberry Pi 4 64 bit (5.15.84-v8+) 

If you will use functions related to image processing or the fastest face detection on the Raspberry Pi, you will need a set: OpenCV + Bazel + MediaPipe:



Led Ring

if you want to connect the LED ring based on the ws281x system, connect 5V and GND respectively to the pins as described, and pin 0c to, for example, pin 13 on SaraKIT, then:

sudo apt-get install pip
sudo pip3 install rpi_ws281x
wget --backups=1 https://saraai.com/_SaraKIT/ledring.py
sudo python3 ledring.py -c


Magnetic Rotary Encoder AS5048A 

git clone https://github.com/SaraEye/SaraKIT-AS5048A-AS5600-encoder-Raspberry-Pi EncoderDemo
cd EncoderDemo


============= for Geeks:

Audio setup

You can use prepared by us prebuild driver installing by script described above or build manually as described below.

You can find audio driver in our repository ZL38063 driver

Install rpi-soure 

Build linux kernel(on raspberrypi it can take about 4hrs)

cd ~/linux
make oldconfig && make prepare && make -j4

go to vproc_sdk in ZL38063_driver and build build all neceseary things

make hbilnx

all modules and overlays will be stored in libs directory

from vproc_sdk/libs install overlays(dtbo) in /boot/overlays

sudo install -m 0755 ./*.dtbo   /boot/overlays

from vproc_sdk/libs install modules replace kernel version if necesseary

sudo mkdir /lib/modules/5.15.32-v8+/sarakit
sudo install -m 0755 ./*.ko /lib/modules/5.15.32-v8+/sarakit
sudo install -m 0755 ./*.dtbo /boot/overlays
sudo depmod

modify /boot/config.txt




 after reboot aplay should be able to list devices

aplay -l

for testing

aplay -f S16_LE -r 16000 -c2 -Dplug:dmix song.wav
arecord -d5 -f S16_LE -r 16000 -Dplug:dsnoop -c2 record.wav