ESP32 has a Hall sensor inside that can sense changes in the strength of the external magnetic field. The Hall sensor is connected to channel 8 of ADC1 of ESP32. The Hall sensor value can be obtained ...
I am a newbie, and I want to make a phase-locked amplifier with a reference signal frequency of 5MHz~7MHz. I have checked some information but still have no idea. Can any expert give me some advice?...
iomuxc {pinctrl-names = “default”;pinctrl-0 = pinctrl_nand_gpio pinctrl_gpio_gpio pinctrl_snvs_4g_rst pinctrl_snvs_gpio;};In it, pinctrl_gpio_gpio means that when GPIO is registered, the pins in pinct...
Dear netizens, the Dragon Boat Festival has passed. I saw many netizens on the forum have submitted finished products. The focus of this event is participation. My goal is to learn and improve in the ...