[table=98%] [tr][td][size=3][color=#000080]A: My USB-to-serial driver is loaded, why is there no ttyUSB0 in the dev directory...[/color][/size] [size=3][color=#006400]B: Does lsusb recognize it?[/colo
[i=s] This post was last edited by huaiqiao on 2016-9-4 22:38 [/i] [size=4][b]Preface [/b][/size] [size=3] I have a colleague who often designs circuits, such as stm32f1, stm32f4, and is considered ex
[i=s]This post was last edited by gogodary on 2016-11-22 17:12[/i] The 1/4 wavelength (λ/4) monopole antenna is a very commonly used antenna. An effective half-wavelength (λ/2) antenna consists of a 1
Low power MCU, crystal oscillator1. Crystal oscillators include passive crystal oscillators and active crystal oscillators, 2-pin and 4-pin. 2P crystal oscillators are more convenient in design and pa