Thanks to Digi-Key, I got the K210 and ESP32S2 development kit. The delivery was very fast, but it was in customs for a while. The packaging was very good, with cushioning foam and anti-static packagi
When using uniflashi to burn AWR1642.bin, an error occurred: Not able to connect to serial port. Recheck COM port selected and/or permissions. However, the device manager shows that it is this port. I
Based on the PAC chip GP8102 of Keyi Electronics, it is very convenient to realize PWM control programmable constant voltage source as shown below:Solution principle:PWM controlled linear voltage regu
I saw a short video of a ragpicker hammering an electron tube, and then the person who filmed it quickly bought it!There are some dubbing at the end, saying that the tubes are imported from the United
What does this silk screen printing WBBSW mean? It looks like a transistor. Is there any kind person who has silk screen reverse lookup information that can be sent to me?