根据 stm32 进行编译的直流电子负载的程序 可用 利用矩阵键盘进行设置 5110进行显示 有恒流恒阻恒功率三种模式可调-According to the STM32 compiled DC electronic load program available using matrix keyboard to set 5110 display adjustable constant resistance and constant power three modes of constant cur