A multimeter is an instrument that can measure various parameters, such as alternating current (AC) or direct current (DC) voltage, AC or DC current, resistance, temperature, capacitance, and more. Modern digital multimeters have adopted digital and logic technologies, becoming smaller in size and featuring more built-in functions. By introducing digital technology, digital multimeters can provide … Read more
Figure 1 Experimental Scene Recently, the author has been using Phyphox and ESP32 to capture the current changes when a light bulb is turned on. However, the current change at the moment the light bulb is turned on is quite rapid, making it difficult to draw an ideal current change graph. WeChat Official Account “Physics … Read more
Click the above“Tektronix Technology” to follow us! Power management is the most concerning issue in IoT design, and accurately measuring current is particularly important. Because low-power devices related to IoT consume power at varying rates, current consumption can range from a few picoamperes to several amperes within a few microseconds to seconds. So, how can … Read more