CrowPi L — ELECROW - FORUM

CrowPi L full hardware shutdown 64-bit Pi OS

jollypike — Sun, 10 Dec 2023 15:29:42 +0000

Hi,

Its not a major problem, more a technical curiosity.

On Shutdown under the Crowpi modified OS the L shuts down correctly and turns off the power light.

Under Pi OS 64-bit it shuts down, turns the screen off, but the power light and fan do not turn off, even waiting a limit. As expected, the behavior is the same with a 4GB and 8GB Pi.

I2C is turned on as I have the battery icon enabled.

What do I need to add to the shutdown sequence fully turn off the L when running Pi OS (64-bit)?

Thanks,

Jason.

CrowPi-L 64bit image

Elecrow — Mon, 12 Jun 2023 06:40:51 +0000

Great news! The 64-bit image for the CrowPi L learning platform is now available for download.

And here's the download link:

https://drive.google.com/drive/folders/1htg37I2d91N6qGHDWVHaB5AXTnOuXJd8?usp=sharing

CrowPi-L schematics (fan board)

ChrisInTn — Tue, 11 Jun 2024 06:47:19 +0000

Are there schematics/wiring diagrams for the crowpi-L fan board? I'm trying to steal 5v/3v/gnd and the two ID pins (27,28). I thought the pinout for the second 40-pin was identical to the Pi pinout, but I toasted the Pi, so I must be wrong...
Thanks!
Chris

CrowPi-L FAQs

Elecrow — Mon, 12 Dec 2022 07:35:00 +0000

Software

1. Defualt password: 1 2. How to download CrowPi-L OS image 3. Show battery status of CrowPi-L in Raspberry Pi OS 4. Where can I find the course code? 5. CrowPi-L 64bit image

Hardware

1. Which GIPO is used in CrowPi-L? 2. CrowPi-L fan control 3. CrowPi-L power supply 4. How to remove the mainboard of CrowPi-L? 5. How to reduce the noise of the cooling fan? 6. CrowPi-L full hardware shutdown 64-bit Pi OS 7. CrowPi-L schematics (fan board)

Projects

4. How to use camera and microphone on CrowPi-L?

CrowPi-L Prompt

1. Warning - The software needs to run on CrowPi-Laptop!

Show battery status of CrowPi L in Raspberry Pi OS

Elecrow — Mon, 08 Aug 2022 10:18:47 +0000

Here's a little app to show the battery status of the CrowPi L in the system tray of the native Raspberry Pi OS:

https://github.com/ppyne/crowPi-L_BatteryStatus

From a terminal, install python3-pyqt5

sudo apt install python3-pyqt5

Clone this projet (the first time only), go to its directory, make it executable (the first time only), run it and enjoy!

git clone git@github.com:ppyne/crowPi-L_BatteryStatus.git
cd crowPi-L_BatteryStatus/
chmod +x ./batteryStatus.py
./batteryStatus.py

There're several problems you need to notice when install this APP.

1.'git clone git@github.com:ppyne/crowPi-L_BatteryStatus.git' returns fatal error:

Please change 'git clone git@github.com:ppyne/crowPi-L_BatteryStatus.git' to

git clone https://github.com/ppyne/crowPi-L_BatteryStatus.git

Then the APP will be installed successfully.

2.'./batteryStatus.py' returns

Please enable I2C interface.

Then the APP will work properly.

Warning: to quit the app properly, you must right click on its icon in the system tray and click the menu "Quit".

Pi Panel update errors on CrowPi L 64bit image/OS

WaffLoft23 — Thu, 07 Sep 2023 00:13:51 +0000

I receive the following errors while trying to update the Pi Panel:

error code: jsonPath_01

please contact the official!

error code: path_04

please contact the official!

What can i do to resolve this issue?

How to remove the mainboard of CrowPi L?

Elecrow — Tue, 03 Jan 2023 05:14:18 +0000

Tools preparation

Cross screwdriver
T7 Torx screwdriver

Click here to watch the operation video. Step 1 Remove the Raspberry Pi Step 2 Use T7 torx screwdriver to move the screws Step 3 Remove the battery cover and remove the battery. Then use cross screwdriver to remove the screws down below the battery. Step 4 Remove the cover forcibly, and remove the speaker cables. Step 5 Use cross screwdriver to remove the screws on the mainboard. And remove the flat cables at J12 and J13. Step 6 Flip the motherboard and remove the 3 flat cables. Now the mainboard has been successfully removed!

How to use camera and microphone on CrowPi L?

Elecrow — Tue, 20 Dec 2022 04:10:03 +0000

Question:

Can you suggest any program that I can install to test the camera and microphone please?

Answer:

Install Mplayer first. 1. Upgrade the installer

sudo apt update
sudo apt upgrade

2. Install VLC (CrowPi L has already installed VLC, you can skip this step)

sudo apt install vlc

3. Install MPlayer

sudo apt install mplayer mplayer-gui alsa-base alsa-utils pulseaudio mpg123

4. Reboot the system

sudo reboot

Take a photograph. 1. Open the camera.

sudo mplayer tv://

Then you will see the camera window 2. Take pictures

fswebcam -r 640x480 -S 45 --jpeg 85 --save /home/pi/photo.jpg

The name of the picture is photo.jpg and the picture will be saved in the /home/pi directory. Press enter and then you can find a picture named photo.jpg in the /home/pi directory. Record audio through microphone. 1. Record the audio.

sudo arecord -D "plughw:1,0" -d 5 test.wav

This is to record a digital audio in wav format for 5 seconds. Parameter - D refers to the specified recording device. Here, the USB sound card plughw: 1,0 is used. 2. Play the record.

sudo mplayer test.wav