PPO

Proximal policy optimization implemented in Mathematica.

Electronic

IRDA:
    Cheap infrared interface for pc.
Hfe dei bjt:
    From Spice transistors models to gain calculation.
Eprom programmer.
PAM amplificator:
    complete design of a digital power amplifier.
Equivalent resistors:
    given a set of resistors and a target value, this utility combines in series and parallel to reach the closest value.
Telephonic digital call meter:
    electric schematic of the interface to the telephone analog line.
S bipole to fix hierarchy for phones, the first who answer isolate the others.
Telimp:
    Telephone line impedance measurement.
HDMI:
    HDMI extender.
Thermostat:
    Remote thermostat with Raspberry.

Hardware/Mechanics

Plotter:
    three motors machine numerical controlled.
Sunflower:
    position control that moves towards the light.
Checkweigher with magnetic levitation.

Chaos and Fractals

Lorentz:
    Lorentz actractor
    Gallery: dog, lorentz3, luma, sand, searock, skelt, sun1, ...
Pendulum

Mathematics/Physics

PPO:
    Proximal policy optimization implemented in Mathematica.
Delta Robot:
    Closed form solution for direct and inverse kinematics of a delta robot.
Covid-19:
    Covidstat by INFN applied daily to Italian Cities, Regions, World Countries.
Poly5Bound:
    constraints in the definition of a polynomial motion profile.
Half moon checkweigher:
    analytical profile that turns into linear scale an half moon checkweigher.
Rubik cube:
    number of combinations and solution time of the popular magic cube.
Reader for cassettes:
    the versatility of the CD on a tape support.
Accounts:
Compton:
    color simulation of the expertiment.
Crystals:
    Interference patterns.
Armonic:
    Symbolic computing for quantum applications, use of operators.
Brillouin:
    Brilluin zone in silicon.
Billiard:
    billiard simulator.
CDspeed:
    calculations on the mechanical parameters of a cdrom.
Chi:
    auxiliary functions to the calculation of integrals.
Notes:
    psycho-acoustics, musicology
Xor:
    heuristic study on the principle of operation of the PLL.
Sunstep:
    Calculations on the trajectory of the sun, transformation of coordinates. Developed in conjunction with the project ethernet connection via laser, it is useful to establish the beam direction: in fact when the sun saturates the receiver the connection drops.
Atomic orbitals.

Algorithms for 3D modeling

Connect
    Gallery: bigconn, biglia, biglia13, biglia14, biliardo71, birillo2, birillone2, ...
Lima
    Gallery: lima3, ...
Fiore
Gear
    Gallery: gear

Software

Big:
    Arbitrary precision calculator. First written in pascal and then improved in C.
Sim:
    C code of a mechanical simulator with 3D graphic navigation.
Printmultiple:
    Handling and printing large images.