opencv image

juerg's picture

I am trying to pass an i01.opencv image into a python 3 aruco marker detection program using rpyc.

Found a script from alessandro that creates a jpg file when asking for it. That is a solution that will write the jpg file to disk and my aruco search could load it from there.

Joystick Service




This service allows input from usb joysticks or gamepads. You can attach to a joystick and examine axis or button data.  These button and joystick events can be sent to other services, such as servos or motor services.  It could be used for a "manual" override to take control of a robot.



jaw movement command

sunilskar's picture

Hi Inmoov team,

we are looking for the command to move jaw to perticular angle,  ( with out speak ).





getName() smells as sweet as a Service ?

GroG's picture

Are "things" other than Services attachable to other Services ?   I think so, but if this the case, it doesn't change the fact that the other "thing" should at some point be connected to another service.

Currently we understand attaching services this way :

Mouth <----attaches---> Ear

But I think this is valid too :

Wow .. this is really "challenging" ocr

GroG's picture

JNA/JNI is always a pain - its when  native libraries are used for either performance or legacy reasons.  And it makes Java programs much more complicated, fragile and difficult to maintain. But, after kicking Tessa4j around a bit - I wanted to see how well it worked.. so I spent a few extra cycles, kicking it and finally I got results (that's the good news) .. The bad news is it does some phenominally crappy ocr. 

AudioCapture Service


A simple service to record using a microphone.  The recording line can be configured with a variety of settings.



Free Magpi Magazine for Raspberry Pi aficionados

Humanoid's picture

I discovered that you can down-load all the back-issues of MagPi, the official RaspberryPi magazine for free from their web-site here:

Lots of pretty pickies for light reading. It's aimed at education from beginner level but there are a lot of ideas and handy code in there relating to all permutations of pi from the beginning. 

I've found some useful info and ideas in there. 


MaryTTS to speak Russian - Text Unicode issue?

Konstantin's picture

Hi guys, got stuck with things seemed obvious ...

Known issue of Russian in MaryTTS 5.2 (no voice file in the build) , so following recommendationsI  put the necessary voice files, taken from Russian version of MaryTTS 5.1

Script looks fine.

MotorDualPwm Service


A general DC continous Motor which is controlled by 2 inputs.
A motor controller (such as Arduino or AdafruitMotorShield) is needed for the MotorDualPwm service to attach.
One of the most useful methods is the motor's move(powerLevel).  The powerLevel needs to be a float value between -1.0 and 1.0