I have an assignment that requires me to have 3 LED's in a series, blinking. The main idea is to use a BJT transistor to accomplish this task. I'm using a BC547C.
Unfortunately the class I'm taking is not in my native language. Luckily the teacher drew the schematic for me and I took a picture, and in order to meet the rules of the forum, I used KiCad to make the schematics and exported it into a PDF (see attachment). It was my first one, I apologize if its quality is lacking. I can also upload the original picture if that helps better.
My problem is that the LED's won't blink, they simply stay on.
We're using the Arduino as the 5V power source. The teacher said that I don't have to use a resistor between the 9V battery and the LED's. I've tried with and without it, different resistances, etc. I've tried to calculate how much resistance I'd need. Nothing seems to work, the LED's just stay on the whole time. The teacher said to only use the resistors, the LED's and the transistors, nothing else. I'm puzzled, what am I missing?
Unfortunately the class I'm taking is not in my native language. Luckily the teacher drew the schematic for me and I took a picture, and in order to meet the rules of the forum, I used KiCad to make the schematics and exported it into a PDF (see attachment). It was my first one, I apologize if its quality is lacking. I can also upload the original picture if that helps better.
My problem is that the LED's won't blink, they simply stay on.
We're using the Arduino as the 5V power source. The teacher said that I don't have to use a resistor between the 9V battery and the LED's. I've tried with and without it, different resistances, etc. I've tried to calculate how much resistance I'd need. Nothing seems to work, the LED's just stay on the whole time. The teacher said to only use the resistors, the LED's and the transistors, nothing else. I'm puzzled, what am I missing?
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