| 26 | |
| 27 | #if defined (ESP8266) || defined(ESP32) |
| 28 | bool PCF8574::begin(int dataPin, int clockPin, uint8_t value) |
| 29 | { |
| 30 | _wire = &Wire; |
| 31 | if ((dataPin < 255) && (clockPin < 255)) |
| 32 | { |
| 33 | _wire->begin(dataPin, clockPin); |
| 34 | } else { |
| 35 | _wire->begin(); |
| 36 | } |
| 37 | if (! isConnected()) return false; |
| 38 | PCF8574::write8(value); |
| 39 | return true; |
| 40 | } |
| 41 | #endif |
| 42 | |
| 43 |