Precision Celsius Thermometer Circuit Based on SL134
The thermometer is a general term for temperature measuring instruments and can accurately judge and measure temperature. The use of solid, liquid, gas by the influence of temperature and thermal expansion and contraction is the basis for design. There are kerosene thermometers, alcohol thermometers, mercury thermometers, gas thermometers, resistance thermometers, thermocouple thermometers, radiation thermometers and photometric thermometers, bimetal thermometers, etc. for us to choose from, but pay attention to the correct method of use, understand The relevant features of the thermometer make it easier to use it.
Bluetooth Mini Projector
Sound can be transmitted wirelessly, no audio source cable is required.
1. The Bluetooth function of the projector can be connected to a Bluetooth speaker, and you can enjoy better sound quality when watching movies and playing music;2. After the projector is connected to the mobile phone through the Bluetooth function, the projector acts as a speaker and can play music from the mobile phone.
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