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We offer the best product range of Digital Programmable Electronic Timer Switch, 12V Relay Module, Retractable Travel Network Cable, Battery Holder and Pi 3 Heat Sink Set.
| PIN NO. | SYMBOL | DESCRIPTION |
|---|---|---|
| 1, 17 | 3.3V | Power positive (3.3V power input) |
| 2, 4 | 5V | Power positive (5V power input) |
| 3, 5, 7, 8, 10, 22 | NC | NC |
| 6, 9, 14, 20, 25 | GND | Ground |
| 11 | TP_IRQ | Touch Panel interrupt, low level while the Touch Panel detects touching |
| 12 | KEY1 | Key |
| 13 | RST | Reset |
| 15 | LCD_RS | LCD instruction control, Instruction/Data Register selection |
| 16 | KEY2 | Key |
| 18 | KEY3 | Key |
| 19 | LCD_SI / TP_SI | SPI data input of LCD/Touch Panel |
| 21 | TP_SO | SPI data output of Touch Panel |
| 23 | LCD_SCK / TP_SCK | SPI clock of LCD/Touch Panel |
| 24 | LCD_CS | LCD chip selection, low active |
| 26 | TP_CS | Touch Panel chip selection, low active |
| Connection/Switch No. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| CH340 connect to ESP8266 (upload sketch) | OFF | OFF | OFF | OFF | ON | ON | ON | NoUSE |
| CH340 connect to ESP8266 (connect) | OFF | OFF | OFF | OFF | ON | ON | OFF | NoUSE |
| CH340 connect to ATmega2560 (upload sketch) | OFF | OFF | ON | ON | OFF | OFF | OFF | NoUSE |
| CH340 connect to Mega2560 COM3 connect to ESP8266 | ON | ON | ON | ON | OFF | OFF | OFF | NoUSE |
| Mega2560+ESP8266 | ON | ON | OFF | OFF | OFF | OFF | OFF | NoUSE |
| All modules work independently | OFF | OFF | OFF | OFF | OFF | OFF | OFF | NoUSE |
| R305 | R307 | |
| Storage Capacity (Fingerprints) | 250 | 1000 |
| 3.3V Operation | No | Yes |
| USB Operation | No | Yes |
| Finger Detect Output | No | Yes |
| NO. | Command | Function |
| 1 | Read | Read the parameter setting |
| 2 | OP:XXXX | Set the minimum delay time for turn ON : 1s |
| 3 | OP:XXX.X | Set the minimum delay time for turn ON : 0.1s |
| 4 | OP:XX.XX | Set the minimum delay time for turn ON : 0.01s |
| 5 | OP:X.X.X.X | Set the minimum delay time for turn ON : 1min |
| 6 | CL:XXXX | Set the minimum delay time for turn OFF : 1s |
| 7 | CL:XXX.X | Set the minimum delay time for turn OFF : 0.1s |
| 8 | CL:XX.XX | Set the minimum delay time for turn OFF : 0.01s |
| 9 | CL:X.X.X.X | Set the minimum delay time for turn OFF : 1min |
| 10 | LP:XXXX | Number of cycles:1-9999 |
| 11 | ON | Relays Enable |
| 12 | OFF | Relays Disable |
| 13 | PX | Set mode P1~P7 |