With Ottoky or Otto Ninja you can do that, you can find out how in their guides @Sourav Kumar3 https://www.ottodiy.com/academy6
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BlocklyDivide and conquer
I figure it was time to make a new project post for those who want to understand and learn how to create blocks for Otto Blockly. I will do my best to attempt to reverse engineer what was given to me and how it works. So in this Otto Blockly blocks planning - Google Sheets is where all magic happens:
- Block Visual = this tab on the spreadsheet shows what the block will look like. This can be achieved using The Block factory or screenshots of similar blocks
- includes[] = this will include the needed libraries for... (More)
Answer
You are right @Patcatcat3
A0 works for analog input so is mainly for sensors
D6 is not really free because it was used in the ultrasound, if you take out the ultrasound you will have D5 and D6 free
D2 and D1 are free for another I2C device that has a different address than the LED matrix like and OLED for example you can connect there and many other I2C protocol sensors