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a carbon-composition resistor can have 4 to 6 bands
single throw
colour matching tests
is stored in the flip-flop and appears at the nQ output
When it comes to measuring the gas in ppm the analog pin has to be used
Temperature Humidity Sensor Module (DHT11) soil moisture a carbon-composition resistor can haveIntroduction : Temperature Humidity Sensor Module (DHT11) can measure temperature from 0C to 50C with 2. 0C accuracy, and humidity from 20 to 80% with 5% accuracy. You can get new data from it once every second. This sensor is pre calibrated and dont require extra components so you can start measuring relative humidity and temperature right away. Connections : Features: Operating Voltage: 3. 5V to 5. 5V. Output: Digital. Temperature Range: 0C to 50C.
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