BulkyModem
tebl
My significantly more expensive, slightly less capable version of the Zimodem-hardware. Surfing the BBS-world at a blazing 1200 baud (or faster)!
Components (36)
| Reference | Value | Description |
|---|---|---|
| U1 | 74HCT244 | 8-bit Buffer/Line Driver 3-state |
| U2 | 74HCT04 | Hex Inverter |
| U3,U4 | MAX232 | Dual RS232 driver/receiver, 5V supply, 120kb/s, 0C-70C |
| U6 | 74HCT32 | Quad 2-input OR |
| A1 | ESP32-WROOM-32 | |
| A2 | Audio_Panel | |
| C1 | 470uF | Polarized capacitor |
| C2-C5,C12-C15 | 1uF | Polarized capacitor, small symbol |
| C7,C8,C17-C19 | 100nF | Unpolarized capacitor, small symbol |
| D1,D14,D15 | 1N4148 | 100V 0.15A standard switching diode, DO-35,Diode |
| D2 | POWER | Light emitting diode |
| D3 | RI | Light emitting diode |
| D4 | RX | Light emitting diode |
| D5 | TX | Light emitting diode |
| D6 | CTS | Light emitting diode |
| D7 | RTS | Light emitting diode |
| D8 | RS-232 | Light emitting diode |
| D9 | C64 | Light emitting diode |
| D10 |