As part of this week's work, I used a digital multimeter to measure voltage on an Arduino-based circuit
while testing input devices. The purpose of this test was to verify that the microcontroller and connected
components were receiving the expected operating voltage.
Equipment Used
- Arduino Uno R3
- HC-SR04 Ultrasonic Sensor
- Digital Multimeter
- Breadboard and jumper wires
- Procedure
- Connected the Arduino and sensor circuit.
- Powered the circuit through the Arduino.
- Used a multimeter to measure voltage at key points in the circuit.
- Confirmed that the expected voltage was present before continuing with sensor testing.
The multimeter readings confirmed that the circuit was receiving proper power and that the microcontroller
was operating correctly. Verifying voltage helped ensure that any issues encountered during testing were
not caused by power delivery problems.
What I Learned
This activity reinforced the importance of using test equipment when troubleshooting electronic systems.
Before investigating software or wiring issues, confirming voltage with a multimeter provides a quick way
to verify that a circuit is powered correctly and operating within expected conditions.