This post contains a series of videos showing the stages of work that led to the creation of the first prototype.
The following video shows the internal components while the motor is operating:
This test shows the DC-DC step-down converter in operation. It reduces the voltage, in this case from 12 V (lead-acid battery) to 3.3 V (the input voltage of the ESP32 board). The test was carried out using a simple program that controls the blinking of the board’s built-in LED.
This video shows the 3D printing of the pedalboard base:
Here is the final result with the pedals installed:
Below is a video showing the PETG connector linking the roller, the gear, and the ball bearing. Near-zero tolerances are crucial here, ensuring long-term durability and enabling the transfer of rotation between rollers while preventing noise and friction.
