Entropy32
captainchapster
A dedicated Bitcoin seed phrase generator that uses radioactive decay as an entropy source. Completely open source and designed to be simple, auditable, and built by anyone with readily available components.
Components (24)
| Reference | Value | Description |
|---|---|---|
| U1 | LM393 | Low-Power, Low-Offset Voltage, Dual Comparators, DIP-8/SOIC-8/TO-99-8 |
| U2 | ATmega328-P | 20MHz, 32kB Flash, 2kB SRAM, 1kB EEPROM, DIP-28 |
| U3 | L7805 | Positive 1.5A 35V Linear Regulator, Fixed Output 5V, TO-220/TO-263/TO-252 |
| C1,C9 | 0.1uF | Unpolarized capacitor |
| C2 | 100nF | Unpolarized capacitor |
| C3,C6 | 1uF | Unpolarized capacitor |
| C4 | 100pF | Unpolarized capacitor |
| C5 | 4.7uF | Polarized capacitor |
| C7 | 0.33uF | Unpolarized capacitor |
| C8,C10 | 22pF | Unpolarized capacitor |
| DS1 | WC1602A | LCD 16x2 Alphanumeric , 8 bit parallel bus, 5V VDD |
| J1 | AudioJack2 | Audio Jack, 2 Poles (Mono / TS) |
| J2 | Conn_01x04_Socket | Generic connector, single row, 01x04, script generated |
| J3,J4 | Conn_01x10_Pin | Generic connector, single row, 01x10, script generated |
| J5 | Jack-DC | DC Barrel Jack |
| J6 | ICSP | Generic connector, double row, 02x03, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |