Hello,
New here. Nice community you all have! Hoping you can help me out with a project.
I have an HVAC circuit board for my vehicle. It has several 5 and 3mm filament twist-lock style bulbs. I would like to convert these filament bulbs to LEDs. I need help figuring out how this is going to work. The bulbs are dimmable via potentiometer on the dash.
I already know how I am going to get the leds on the board. This example is ugly but will work, mine will not be as haggard.
Here is a picture of the HVAC board:
Here is the back side with a closer look of the twist-lock sockets. (bulbs removed)
Here is a diagram of the dimmer in pdf form.
Dimmer Control
HVAC/Steering Wheel/Radio/Instrument Cluster
Instrument Cluster Illumination lamps
So, my question is what value resistor do I need for each LED. Also, how well will this work with the factory dimmer? The dimmer is what throws me off otherwise I could easily decide what value resistor with a simple equation.
BTW the leds to replace the filaments are rated forward voltage: 3.2-3.6v @ 20mA.
Thanks for reading and I hope to hear any and all suggestions.
Sall
New here. Nice community you all have! Hoping you can help me out with a project.
I have an HVAC circuit board for my vehicle. It has several 5 and 3mm filament twist-lock style bulbs. I would like to convert these filament bulbs to LEDs. I need help figuring out how this is going to work. The bulbs are dimmable via potentiometer on the dash.
I already know how I am going to get the leds on the board. This example is ugly but will work, mine will not be as haggard.
Here is a picture of the HVAC board:
Here is the back side with a closer look of the twist-lock sockets. (bulbs removed)
Here is a diagram of the dimmer in pdf form.
Dimmer Control
HVAC/Steering Wheel/Radio/Instrument Cluster
Instrument Cluster Illumination lamps
So, my question is what value resistor do I need for each LED. Also, how well will this work with the factory dimmer? The dimmer is what throws me off otherwise I could easily decide what value resistor with a simple equation.
BTW the leds to replace the filaments are rated forward voltage: 3.2-3.6v @ 20mA.
Thanks for reading and I hope to hear any and all suggestions.
Sall