ZigBee module. ZigBee is also known as "purple bee". It is a local area network protocol based on the IEEE802.15.4 standard. The frequency band is 2.4GHz. It has the characteristics of short distance,
[i=s]This post was last edited by strong161 on 2017-4-17 17:17[/i] Three STM32 F4 discovery [color=#333333][font=tahoma, arial, simsun]ST original stm32F4 discovery. The price is one piece, and E coin
The outsourced electronic processing factory privately replaced diodes of different brands, which resulted in frequent "howling" at the power adapter production site and no protection during short-cir
I have been using the compiler to power the microcontroller for debugging, and there were no problems. Recently, I have used other power supplies to supply 3.3V as the power supply for the microcontro