What happen if in a circuit of 10 Leds in series (each 3V 150mA rated), I replace one of them with another Led rated at 9V 150mA? The others will get dim or doesn't light up?
Nice project! Another nice addition would be 2 x CR2032 coin cell batteries and an smd switch making it portable.... why? Why not? "Just because" :) Edit: Side question - which of the camera is your Macro one? I've been thinking of getting a Macro camera for zooming SMD and PCB stuff in general
The main issue is that the coin cell batteries probably wouldn't be able to provide enough current for all of the LEDs. Even without a resistor, you can run a single LED off a coin cell battery without blowing it. If you've got this fully loaded with 42 LEDs, it's going to struggle! As it is right now, it's already quite portable. All you need to power it is a USB power bank and most of us carry one of those around these days for phone battery emergencies. Side answer - It's the same camera I always use for filming overhead stuff (the Panasonic GX80/85). The only difference is the lens. I'm using the Nikon 105mm f/2.8D AF Micro-Nikkor with the Viltrox NF-M43 adapter so I can mount it on a Micro Four Thirds camera. :)
If you want some LED sample boards of your own, the Gerber files are up on GitHub - github.com/Kaouthia/LED-Sample-Board
This was a great watch John
Thanks, Udi! :)
What happen if in a circuit of 10 Leds in series (each 3V 150mA rated), I replace one of them with another Led rated at 9V 150mA?
The others will get dim or doesn't light up?
15:15 what if you just bridge them? and what airflow are you using?
hi what heat and airflow you use?
Nice project! Another nice addition would be 2 x CR2032 coin cell batteries and an smd switch making it portable.... why? Why not? "Just because" :)
Edit: Side question - which of the camera is your Macro one? I've been thinking of getting a Macro camera for zooming SMD and PCB stuff in general
The main issue is that the coin cell batteries probably wouldn't be able to provide enough current for all of the LEDs. Even without a resistor, you can run a single LED off a coin cell battery without blowing it. If you've got this fully loaded with 42 LEDs, it's going to struggle! As it is right now, it's already quite portable. All you need to power it is a USB power bank and most of us carry one of those around these days for phone battery emergencies.
Side answer - It's the same camera I always use for filming overhead stuff (the Panasonic GX80/85). The only difference is the lens. I'm using the Nikon 105mm f/2.8D AF Micro-Nikkor with the Viltrox NF-M43 adapter so I can mount it on a Micro Four Thirds camera. :)