void setup() { Wire.begin(); //creates a Wire object
// set I/O pins to outputs Wire.beginTransmission(0x20); //begins talking to the slave device Wire.write(0x00); //selects the IODIRA register Wire.write(0x00); //this sets all port A pins to outputs Wire.endTransmission(); //stops talking to device Wire.beginTransmission(0x20);//begins talking again to slave device Wire.write(0x01); //selects the IODIRB register Wire.write(0x00); // sets all port B pins to outputs Wire.endTransmission(); //ends communication with slave device }
void loop() { Wire.beginTransmission(0x20); //starts talking to slave device Wire.write(0x12); //selects the GPIOA pins Wire.write(00000011); // turns on pins 0 and 1 of GPIOA Wire.endTransmission(); //ends communication with the device Wire.beginTransmission(0x20); //starts talking to slave device Wire.write(0x13); //selects the GPIOB pins Wire.write(00000001); //turns on pin 0 of GPIOA Wire.endTransmission();//ends communication with the device }
void setup() { Wire.begin(); //creates a Wire object
// set I/O pins to outputs Wire.beginTransmission(0x20); //begins talking to the slave device Wire.write(0x00); //selects the IODIRA register Wire.write(0x00); //this sets all port A pins to outputs Wire.endTransmission(); //stops talking to device Wire.beginTransmission(0x20);//begins talking again to slave device Wire.write(0x01); //selects the IODIRB register Wire.write(0x00); // sets all port B pins to outputs Wire.endTransmission(); //ends communication with slave device }
void loop() { Wire.beginTransmission(0x20); //starts talking to slave device Wire.write(0x12); //selects the GPIOA pins Wire.write(00000011); // turns on pins 0 and 1 of GPIOA Wire.endTransmission(); //ends communication with the device Wire.beginTransmission(0x20); //starts talking to slave device Wire.write(0x13); //selects the GPIOB pins Wire.write(00000001); //turns on pin 0 of GPIOA Wire.endTransmission();//ends communication with the device }
The Singapore stock market has alternated between positive and negative finishes through the last five trading days since the end of the two-day winning streak in which it had added more than a dozen points or 0.4 percent. The Straits Times Index now sits just above the 3,060-point plateau and it's likely to see a narrow trading range on Monday.
Among the actives, Ascendas REIT sank 0.64 percent, while CapitaLand Integrated Commercial Trust plummeted 1.42 percent, City Developments plunged 1.12 percent, Dairy Farm International tumbled 0.86 percent, DBS Group skidded 0.68 percent, Genting Singapore retreated 0.67 percent, Hongkong Land climbed 1.30 percent, Mapletree Commercial Trust lost 0.47 percent, Mapletree Logistics Trust tanked 0.95 percent, Oversea-Chinese Banking Corporation dropped 0.61 percent, SATS rose 0.24 percent, SembCorp Industries shed 0.54 percent, Singapore Airlines surrendered 0.79 percent, Singapore Exchange slid 0.30 percent, Singapore Press Holdings declined 1.03 percent, Singapore Technologies Engineering dipped 0.26 percent, SingTel advanced 0.81 percent, United Overseas Bank fell 0.39 percent, Wilmar International eased 0.24 percent, Yangzijiang Shipbuilding jumped 1.42 percent and Keppel Corp, Thai Beverage, CapitaLand and Comfort DelGro were unchanged.
