Restricting automatic tip detection

[PBrunot]

We have an elusive problem on our FabLab with Unisolder where the wrong tip is detected, and this resulted in a burned tip. Troubleshooting has not been successfull. We would like to implement a software workaround, and I open this issue for advice.

I was thinking to add a parameter to disable the auto-detection in IronIdentify() function, with a logic as follows:

1) if a new tip is detected, different from the last model saved in EEPROM 2) check if the auto-detect parameter is enabled, if YES -> keep the existing logic 3) if NO, set a global variable to flash on the screen the "auto-detect disabled" message and keep old tip ID

Other changes required:

• Edit pars / eprom accordingly
• Add saving in EPROM at poweroff of the last valid tip

Potential design issue:

• Behaviour in case of this sequence : old tip -> 0x1919 -> new tip . Should we keep the old tip ? Allow autodetect if tip has been disconnected? Maybe we will have spurious changes anyways.

Alternative design:

• add a parameter to allow setup a fixed IronID and bypass detection ?

Thanks for your feedback about the kind of solution to this problem would you be open to merge as pull request.

[PBrunot]

It is simpler to implement the change in hardware by putting the resistors in the inside of the unisolder.