The most simple and quickest way is to pin the power measurement chip with the resistor between.

最简捷的方法就是测量芯片的电源引脚与地之间的电阻。

youdao

This supply current can be set using a resistor on the I ADJ pin.

这电源电流可设定使用一个电阻的i调节脚。

youdao

The microcontroller's pin connects to ground using pulldown resistor R1 with resistance, typically, of a few hundred kilohms to impress the high-impedance state on the pin.

微处理器管脚用下拉电阻R1与地相连，阻抗典型为几百千欧，在管脚上呈现出高阻状态。

youdao

On your breadboard connect the MIDI circuit as follows: The collector is connected to a 220 ohm resistor which is connected to the second pin from the left on the back of the female midi connector (labelled pin 5).

ENGADGET: How-To Control Csound with a Custom Midi Controller: Hardware (2 of 2)