Why does HC-SR051 always output high level when powered on? Even if the user leaves, it still outputs high level. What is the reason? Is it due to sensitivity or something else?
[i=s]This post was last edited by junnotech on 2019-2-14 11:04[/i] [align=left][size=4]OTDR (Optical Time Domain Reflectometry) and OFDR (Optical Frequency Domain Reflectometry) are two commonly used
DSP is a 3.3V system. In the design, an RC circuit is usually added to the EPWM end of the DSP.
Personally, I think this circuit has two functions. One is to block high frequencies, and the other is t
Hello students, I've been working on non-contact temperature measurement with cc430f5137 and mlx90614 recently. I've tried both software simulation IIc and hardware IIc modules, but I can't receive th
I recently did a small test (Z-STACK2.5.1 for the protocol stack and CC2530 for the platform). It was like this: there were three devices in the network (a coordinator, four routers and a terminal). T