I recently received a 32*64 two-color dot matrix screen composed of 595 and 138, but it just won’t light up. This is my first time using this thing. I checked a lot of information, but I just can’t un
1. IIC DescriptionThe above figure shows that there should be at least one microcontroller in the IIC bus topology. The controller communicates with other associated devices through the SCL and SDA li
Problem description: The small light does not flash
Previous article: The following two routines are used. 1) Blinky light flashing routine 2) Bluetooth routineProblem description:
Compilation and deb
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How to use 3.3V of stm32 to control 5V servo? The control signal of the servo requires 5V, and stable control is required for long-term use. What should I do at this time?