Hello Everyone,
I am working on a LED lighting project which is beginning to be a hassle. My goal is to control the flashing of 45 LED's connected in groups of 5 with a PicAxe 14M2 project board. My initial attempt was only temporarily successful as my LED's are now fading.
Components are as follows
12 V rechargable battery
9 2N2222A NPN transistors (function as switches controlled by the 14M2)
9 120 OHM Resistors (Functioning as current limiting resistors)
45 white LED's set into 9 groups of 5 LED's
9 330 OHM resistors between the PicAxe pins and the transistor gates
My guess as to why it is failing now would be the setup of the LED's In each of the 9 groups LED 1 and 2 are in parallel with each other and series with LED 3 and 4 which are also in parallel with each other, and LED 5 is in series with the negative leg of LED 3 and 4.
If anyone has any tips or might think they know a solution please comment, looking forward to the varied views of my problem.
Regards Andrei.
I am working on a LED lighting project which is beginning to be a hassle. My goal is to control the flashing of 45 LED's connected in groups of 5 with a PicAxe 14M2 project board. My initial attempt was only temporarily successful as my LED's are now fading.
Components are as follows
12 V rechargable battery
9 2N2222A NPN transistors (function as switches controlled by the 14M2)
9 120 OHM Resistors (Functioning as current limiting resistors)
45 white LED's set into 9 groups of 5 LED's
9 330 OHM resistors between the PicAxe pins and the transistor gates
My guess as to why it is failing now would be the setup of the LED's In each of the 9 groups LED 1 and 2 are in parallel with each other and series with LED 3 and 4 which are also in parallel with each other, and LED 5 is in series with the negative leg of LED 3 and 4.
If anyone has any tips or might think they know a solution please comment, looking forward to the varied views of my problem.
Regards Andrei.