Fab Academy 2024

@ Fab Lab Rwanda, Kigali

Electronic Design :

Task: Use the test equipment in your lab to observe the operation of a microcontroller circuit board (as a minimum, you should demonstrate the use of a multimeter and oscilloscope);

As a group we used a test equipment to observe microcontroller circuit board, we used Xiao ESP32C3 in our board. We used both Multimeter and Oscilloscope.

We uploaded the following code in the Board and analysed it with lab equipment.

// Define LED pins const int led1 = D0; // LED connected to digital pin 6 on XIAO-ESP32 C3, const int led2 = D7; // LED connected to digital pin 7 on XIAO-ESP32 C3, void setup() { // Initialize the LED pins as outputs: pinMode(led1, OUTPUT); pinMode(led2, OUTPUT); } void loop() { //blinking two LEDs digitalWrite(led1, HIGH); digitalWrite(led2, LOW); delay(1000); digitalWrite(led1, LOW); digitalWrite(led2, HIGH); delay(1000); }

Click Here to Download the Code

Testing Voltage

For this Experiment we tested voltage changes on the blinking LED (ON & OFF) on our printed board.

Observing Current with Oscilloscope

With Oscilloscope we observed the current consumption with a blinking LED on our designed board and we observed the changes on Oscilloscope.

Testing voltage in powered board with Multimeter

In this experiment, we tested voltage passing in our designed board on different positions. The voltage from VCC as 5.07V with multimeter.

Measuring current with multimeter

We tested current consumption with Multimeter on blinking LED. The current consumption is 15mA.

Current with Oscilloscope

We tested current consumption Osciloloscope on the channel with uploaded on blinking LED. The current consumption is 15mA. zero and max as it is on and off.

Instructor

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