Powering a Netduino and LPD8806 From Batteries
#1
Posted 17 October 2012 - 12:59 PM
Thanks!
#2
Posted 17 October 2012 - 09:25 PM
Nithins,I'm in the planning stages of building a robot costume for my son. The project will use an Adafruit LPD8806 of 1 meter length controlled by a Netduino and probably just utilize the pattern from the tutorial. I have a 4 AA battery pack, but I'm not exactly sure what is the correct way to wire this up so that the strip won't burn out and also won't damage the Netduino. Would the recommendation be to use alkaline or rechargeable AA batteries? Should I hook up the batteries to the DC barrel jack and power the light strip power from the Netduino 5v pin?
Thanks!
Do not try to power a 1 meter strip from the Netduino 5 vdc regulator. Per the specs on Adafruit.com that you linked to the strip pulls 120 ma for every 2.5" of length that you are planning on using (with the LEDs on at full brightness). That would be almost 2 amps of current.
You will need a separted power supply of around 2 amps for the strip. Make sure that it a regulated supply. 6 vdc will start to damage the strip.
If you want to power from a battery you will need a regulator and most likely a gel cell or Sealed Lead Acid battery 6 or 12 vdc 4 amp hour or more depending on how bright, color and duration that the LEDs are going to be on before rechaging the battery.
Edited to add link: Tutorial on using batteries to power RGB LED Strip
Hope this helps,
Chuck
#3
Posted 17 October 2012 - 10:07 PM
Edited to add link: Tutorial on using batteries to power RGB LED Strip
Thank you so much for that tutorial link! I completely missed that on the Adafruit site. That's exactly what I needed.
#4
Posted 29 November 2012 - 03:08 AM
#5
Posted 29 November 2012 - 10:14 AM
My .NETMF projects: .NETMF Toolbox / Gadgeteer Light / Some PCB designs
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