Flammable Gas & Smoke Sensor- It is suitable for detecting the H2, LPG, CH4, CO, Alcohol or Propane. MQ3 sensor can sense LPG, CO, Smoke etc. For MQ3 sensor if the concentration is high the resistance decrease, if the concentration is low the resistance increase. D0 : Indicates the presence of combined gases D0 […]
Category: ADC
ACS712 is a hall effect-based linear current sensor that can measure both AC and DC current. Let’s look at the connection and steps to interface. For a unipolar supply voltage, it nominally remains at VCC⁄ 2. Thus, VCC = 5 V translates into V IOUT(Q) = 2.5 V. So for 0A the reference voltage is
In this program we use an LDR to read the light condition. The connection diagram of LDR as follow- LDR is nothing but a register that vary with light condition. At low light resistance is high and at high light the resistance is low. Temperature sensor LM35 is a digital temperature whose Vout value change
Light Emitting Register & Temperature Sensor LM35Read More »
Most of the real world sensor output is analog type. We can read the analog output with the ADC pin provided in Atmel family. In ATnega32 there are 8 ADC channel with 10bit resolution. That means each of the ADC channel can divide 0-5V to 0-1023 counting value that can be easily read by the
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