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the white led light source on the sensor module project the light on the target object
Instructables on how to use thermopile infrared sensor including circuit and Arduino code
MAX30205 is an accurate temperature sensor
The sensors in this coin acceptor use the thickness
3.7V rechargeable Polymer Lithium Ion battery ECOCELL headless bolt the white led light sourceThis is a 1000mAh, 3. 7V rechargeable Polymer Lithium Ion battery. Each cells outputs a nominal 3. 7V. Before usage, check the polarity of the connector(polarized type) matches the polarity of your equipment! There is no standard defining the polarity of LiPo batteries with a JST PH connector. We used the polarity that seems to be most common, but your equipment can be different! If it does not match, it is very easy to change the connector polarity.
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US$ 18.95
US$ 19.95