I need to choose a microcontroller with a wide voltage range of 2~6.5v, a low startup voltage of about 1.7v, and more than 15 I/O legs. The price should be controlled within the range of 5 yuan per pi
AT32WB415 is a microcontroller that uses low-power (BLE) Bluetooth 5.0 and is equipped with corresponding debugging and downloading tools on the board. However, its peripheral configuration is relativ
A netizen was abroad and bought a USB-to-serial converter on Amazon. It used an FTDI chip, which was made in China. It worked fine at first, but after the FTDI driver on the PC was updated, the conver