Episode 440: DIY Arduino Helicopter Collective Joystick Control

Sorry beacon_dave I should of checked, thank you once again.

If you look at the Adafruit example I linked to above, then they use this format to set the pin to an input with pullup:

// configure button pin for input with pull up
mcp.pinMode(BUTTON_PIN, INPUT_PULLUP);

Yes I have already changed that to mcp_I2C and that was OK, but as it reached the mcp pinMode it passed  15, 14 ,13 but halted on pinMode 12 button 4

with  "class adafruit_mcp23X17 has no member named pullup" I have checked that all 4 button pullups are writen exactly the same, and checked spelling for any changes, and all match.

You will likely need to change the mcp instance on the line below it as well, as per the Adafruit example.

Thank you beacon_dave I will change the include and hopfully i will finaly finish these projects, thanks for your responce.

Depends on the exact error message but looks like it can't find a file that is being referenced.

Kaleb's CollectiveControl.ino references 'Adafruit_MCP23017.h'

#include <Adafruit_MCP23017.h>

but it looks like with the later Adafruit MCP23017 libraries this has changed to:

#include <Adafruit_MCP23X17.h>

https://learn.adafruit.com/adafruit-mcp23017-i2c-gpio-expander/arduino

Hi Kaleb,

I know these are old projects but I need your help if possible? at the moment I am persuing with two of your projects,

this one and the MCP23017 and on both projects I cant get the Arduino code to upload?  on both codes its the same problem cant find MPC23017.h  file does not exists.

I have installed the MPC23017 using the arduino file manager and also by using the Zip file from github still keeps failing with ( file does not exist ) do you have any ideal what the problem could be or how to get this to work.

What simulator software does this joystick work on?
In this case, if possible, give a full explanation

Busy printing and collecting parts. Would you mind sharing some dimensions of your friction mod or better still an stl file?

Resolved the issue. There are multiple "joystick" libraries and not all are created equal. I located the correct library by searching for one with value the code called out as not defined, in this case "JOYSTICK_DEFAULT_REPORT_ID".