mBlock 5: Arduino-programming in the former "mBlock-3-mode"

#1

Hello everybody,
I am a German STEM-teacher using mBlock already for a very long time. Thanks for this great software.

Before I switch from mBlock 3 to mBlock 5: Together with my students I realize physical computing-projects using the mBlock-stage i.e. as a control panel to control DC-motors of a crane, the servo motors of a robot arm or to react in mBlock-/scratch-programs on sensor-values (light, temperature, …)
I was not able to find out how this works with mBlock 5. I tried to declare global variables in both the Arduino-script and the mBlock-script. But this didn’t work. Can you help me with this?
Thanks in advance,
Dieter

#2

Hello Dieter_Schmidt,
Would you please show us the codes in mBlock 3, as well as your robot performance? You may post video here or send to my email box: stephanie.wu@makeblock.com. Thank you!

#3

Hello Stephanie,
I uploaded three examples because this issue maybe interesting to other folks in the forum.

Example 1: Simple AnalogRead of a potentiometer
Example 2: We use a cheap Joystick to control game-sprites (2 potentiometers and 1 switch)
Example 3: Two DC-motors are controlled in direction (forward / backward) and speed (PWM) with a L293D-drivechip.

I hope that this is enough explanation.
Thanks for helping me,
Dieter

1-AnalogRead_Potentiometer.sb2 (72.9 KB)
3-Controlpanel PWM-controlling two DCs by L293-mM.sb2 (302.5 KB)
2-Joystick_Example.sb2 (209.4 KB)

#4

Hi again,
I’m not at school (vacation time :grinning:) - that’s why I cannot add any videos,
Dieter

#5

Hi,
one additional remark: If I add the mBot there is the “live-mode”. In this mode I can use the mBot-bricks as well as the other bricks. For the Arduino Uno these “live-mode” does not exist. Will this option be possible in the near future?
Best wishes
Dieter

#6

There is no plan to add this live mode feature for Arduino Uno board. You may try Upload mode broadcast.

#7

Hi, I uploaded the “Upload Mode Broadcast”, but nothing happens. When I switch to the Python Code it says “# not implemented, yet” …
Thanks for a comment in advance,
Dieter

#8

Hi,
I was false. It works if I use the “when receiving upload mode message “message””-hat-block it works. If I use the upload-mode-message-value-reporter-block there is the “# not implemented, yet”-message and nothing happens.
I will continue with this experience.

One comment: it will probably be easy to send messages to the Arduino, both digital and analog. But I guess that it will be difficult to process AnalogRead-messages of several AnalogInpus?!?
Thanks again for an answer,
Dieter