DAC0808 8-Bit Digital to Analog Converter IC xigbee sheild for arduino and six software selectable power

and six software selectable power saving modes

The DS18B20 is a programmable 1-Wire digital temperature sensor from Maxim Integrated

So after using this method IR sensor need not be calibrated for different ambiance condition

MQ2 Gas Sensor module is useful for gas leakage detection (home and industry)

DAC0808 8-Bit Digital to Analog Converter IC xigbee sheild for arduino and six software selectable powerDAC0808 8 Bit Digital to Analog Converter IC The DAC0808 is a fast 8 bit multiplying DAC with a settling time of 150ns, making it suitable for high speed waveform generation and signal processing applications. It requires a dual supply (5V to 15V) and provides current output. Key Features 8 bit resolution DAC Fast settling time: 150ns Current output (requires external op amp for voltage) Dual supply: 5V to 15V 16 pin DIP package TTL compatible inputs