Irk-stud-duino (Arduino like) board to arrange studying Real-time systems and Differential equations.

Once I bough sale components in an internet shop. Now I thought why not use them to in studying Real-time systems and Differential equations.

The components are:

• ICM7555 FET timer module,
• MT30361 Common cathode 7-segment 3-digit LED module,
• M93C86 Microwire EEPROM,
• B57164-K 223-J, 22 кОм, 5%, NTC thermistor (not user now in the PCB),
• 2N3904 N-P-N transistor (not used).

Most of the components wrapped with their pin headers and jumpers, allowing students to study micro controllers with even less soldering.

Printed circuit design for Arduino Mega v3.0.3-like board based on ATMega-128,-64, which has TQFP-64 package (not TQFP-100). These chips are cheap now when bought at ALIExpress.

ATTENTION! This PCB Design is not complete, e.g., it is not pin-compatible with Arduino Mega.

TODO:

• Move big components on the top of PCB (swap sides).
• Add an N-P-N transistor in key mode with some components to connect output of 7555, e.g., with a relay.
• Move silk text to a visible place.
• Use SMD Capacitors around 5V rectifier.
• Write a handbook.

PCB made with/by KiCAD and FreeRouting.

Current scheme

Current PCB layout

License - MIT.

Regards, Evgeny Cherkashin, Ph.D. Irkutsk