polytonic_greek_keyboard
Hanra-s-work
This is the repository containing the development process for the physical polymorphic greek keyboard.
Components (39)
| Reference | Value | Description |
|---|---|---|
| Q1 | S8050 | 0.7A Ic, 20V Vce, Low Voltage High Current NPN Transistor, TO-92 |
| U1 | PCF8574T | 8-bit I/O Expander, I2C interface, interrupt output, fixed address bits 0b0100xxx, SOIC-16 |
| U2 | TPS62162DSG | 1A Step-Down Converter with DCS-Control, fixed 3.3V output, 3-17V input voltage, WSON-8 |
| U3 | ESP32-S2-WROVER | RF Module, ESP32-D0WDQ6 SoC, Wi-Fi 802.11b/g/n, 32-bit, 2.7-3.6V, onboard antenna, SMD |
| U4,U5 | MCP23017_SP | 16-bit I/O expander, I2C, interrupts, w pull-ups, SPDIP-28 |
| bulk_storer_C1,C5 | 1000uF_16V | 1000uF, 16V Electrolytic Capacitor |
| C1 | 0.1uF | Unpolarized capacitor |
| C2 | 10uF_0805_16V_lowESR | 10uF, Min. 16V, ESR<=20mΩ@1MHz, 0805, MLCC |