Today I finally took some time to post a message. Because I have a lot of things to do, mainly preparing for the postgraduate entrance examination, it is really impossible to live in this society with...
This is the first time I have run a domestic BLE in so many years. While I feel a little relieved, I feel a bit like Kong Yiji, because I have participated in many activities and posted many experienc...
Infrared thermometer with K-type thermocouple function
Add a new highlight to your toolbox. The Fluke 561 infrared and contact thermometer combines the temperature measurement functions required by te...
[i=s]This post was last edited by Jacktang on 2019-10-12 16:04[/i]OMAP-L138 is a dual-core heterogeneous processor combining ARM9 and C6000 from TI. The highest main frequency of ARM and DSP is 456MHz...
It is necessary to amplify the 50HZ industrial frequency signal. The following circuit (second-street active filter circuit) can filter out noise of other frequencies and obtain a good amplification e...
136MHz-174MHz, 25W power amplifier chip outputs second harmonic -38dBc, with an elliptical low-pass filter (stopband suppression -56dB), output harmonic -55dbc, the index requirement is -80dBc, what m...