Excuse me if this has already been suggested-- I didn’t see it, so:
Coming from a Kaffelogic to a Bullet, it would be nice to have the ability to design a profile in Roastime, and have the roaster automatically adjust its settings to target that profile.
This is a bit different than a recipe, where the operator has mapped out the sequence of setting changes. Instead, the operator maps out the desired roast profile, and the machine compensates to achieve that profile.
Artisan has the ability to design a profile, which you then can use as an overlay, but it is up to the operator to adjust the settings.
I’m sure this is not a trivial problem to solve, but it would be a killer feature!
The reason why true automated profile tracking doesn’t work reliably on the Aillio Bullet comes down to a combination of its step-based control logic and the technical limitations of induction heating.
Unlike roasters such as the Loring or Kaffelogic, which support smooth, continuous power modulation, the Bullet adjusts heat, fan, and drum speed in discrete steps (P1–P9 or P1-P14 on the PRO, F1–F9, D1–D9). This means it cannot make the fine, real-time corrections needed to follow a target curve precisely. Even when using Artisan’s PID mode, the system can only jump between fixed levels—causing overshooting, delayed reactions, or instability in the roast curve. Of cause I tried that but failed miserably 
This limitation is especially pronounced due to the nature of induction heating. Induction doesn’t allow for linear, continuous adjustment of output like a gas valve or resistive heater might. Instead, it relies on controlled electromagnetic pulses to generate heat within the drum, which are typically implemented as fixed power stages to maintain system stability and hardware safety. Achieving high-resolution, real-time modulation with induction would require complex power electronics far beyond what the Bullet is designed for.
In contrast, systems like the Loring use modulating gas burners that respond smoothly to control inputs, while the Kaffelogic employs high-frequency PWM and low thermal mass, enabling rapid, precise adjustments. Both were built from the ground up to support automated curve tracking.
In summary, the Bullet’s combination of discrete power control and the inherent response limitations of induction heating make precise, automated curve following technically infeasible—at least without significant external control logic and even then, only within narrow tolerances.