Using RTL2832U + R820T program , taking advantage of the Q channel RTL2832U on adding support for the frequency of 100KHz-24MHz , to achieve the reception of 100KHz-1.7GHz .
You can use th..
OPS-1 light control switch has two trigger modes and two output modes:
1). Set trigger mode by JMP1:
Light trigger mode (1-3): When the photosensitive resistance induction to the outside..