Differences
This shows you the differences between two versions of the page.
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pm:prj2026:bianca.popa1106:radu.stoican [2026/05/24 19:37] radu.stoican [Electrical Schematic Description] |
pm:prj2026:bianca.popa1106:radu.stoican [2026/05/24 19:37] (current) radu.stoican [Electrical Schematic Description] |
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| The 4x4 Keypad is connected using a matrix scanning technique, utilizing 8 digital pins to minimize I/O usage. The Passive Buzzer is connected in series to the MCU to prevent overcurrent damage to the digital pin. The Slide Potentiometer acts as a voltage divider, providing a linear voltage between 0V and 5V to the ADC (Analog-to-Digital Converter) on pin A0. | The 4x4 Keypad is connected using a matrix scanning technique, utilizing 8 digital pins to minimize I/O usage. The Passive Buzzer is connected in series to the MCU to prevent overcurrent damage to the digital pin. The Slide Potentiometer acts as a voltage divider, providing a linear voltage between 0V and 5V to the ADC (Analog-to-Digital Converter) on pin A0. | ||
| - | {{:pm:prj2026:bianca.popa1106:screenshot_2026-05-24_193609.png?400x300}} | + | {{:pm:prj2026:bianca.popa1106:screenshot_2026-05-24_193609.png?500x400}} |
| ==== Signal Diagrams and Communication Protocols ==== | ==== Signal Diagrams and Communication Protocols ==== | ||
| === SPI Protocol (TFT & SD Card) === | === SPI Protocol (TFT & SD Card) === | ||
