基于单片机的酒精探测仪设计

然后 uses an integrated circuit to amplify the signal and drive ten LEDs to display the signal voltage in ascending order. At the same time, it uses a microcontroller to control the signal and output it to a digital tube through analog-to-digital conversion. For someone who has just consumed alcohol, as long as they blow into the sensor, the detector can display the concentration of alcohol gas. If the sensor is placed near the mouth of a bottle, it can easily identify whether it contains white wine or yellow wine, and differentiate the alcohol content. Keywords: sensor; alcohol detector; microcontroller; analog-to-digital conversion.