Hello, I have a biological weak signal of 10uA, frequency 1K, amplitude not exceeding 0.5V. I want to use RC522 to send itto the corresponding mobile phone and display the current value through a dedi
Figure 1 LQG15HS18NJ02D packageFigure 2 LQG15HS18NJ02D circuitHow can I determine the polarity of LQG15HS18NJ02D? In other words, is the end close to VccRF the corresponding dark part or light part in
The anti-theft alarm introduced in this article can be used as a door opening lighting controller and an anti-theft alarm. Its performance is very stable and reliable, with almost no false alarms, and
I encountered such a problem when I was working on a project of zigbee network. I want to use zigbee to build a wireless network to collect temperature and humidity and the latitude and longitude sign