Re: [Fwd: Re: Ambient light sensing via LED response]

2009-05-10 Thread C. Scott Ananian
On Wed, May 6, 2009 at 6:14 PM, Reinder de Haan r...@mveas.com wrote:     Absolutely not.  The A/D is eight bits, with an input range spanning     0 - 3.3V, so the best you     can hope for is about 13 mV per LSB.  I would guess actual accuracy     to be closer to 26 mV. I think the actual

Re: [Fwd: Re: Ambient light sensing via LED response]

2009-05-10 Thread Reinder de Haan
C. Scott Ananian wrote: On Wed, May 6, 2009 at 6:14 PM, Reinder de Haan r...@mveas.com wrote: Absolutely not. The A/D is eight bits, with an input range spanning 0 - 3.3V, so the best you can hope for is about 13 mV per LSB. I would guess actual accuracy to be closer to 26

Re: [Fwd: Re: Ambient light sensing via LED response]

2009-05-10 Thread C. Scott Ananian
On Sun, May 10, 2009 at 5:01 PM, Reinder de Haan r...@mveas.com wrote: C. Scott Ananian wrote: On Wed, May 6, 2009 at 6:14 PM, Reinder de Haan r...@mveas.com wrote:     Absolutely not.  The A/D is eight bits, with an input range spanning     0 - 3.3V, so the best you     can hope for is about

Re: [Fwd: Re: Ambient light sensing via LED response]

2009-05-10 Thread Mark Bauer
Hi guys, How can I help with this, I still teach electrical engineering at the University of Nebraska, and before that I have about 25 years in the field. Mostly embedded microcontrollers and stuff. I do have several XOs to work with. I would have jumped in earlier but the end of the

[Fwd: Re: Ambient light sensing via LED response]

2009-05-06 Thread Reinder de Haan
Original Message Subject: Re: Ambient light sensing via LED response Date: Thu, 07 May 2009 00:02:49 +0200 From: Reinder de Haan r...@mveas.com To: raf...@laptop.org References: 200904290017.n3t0hl2v006...@new.toad.com c5d4a4e5-b183-4b7d-bafb-3488e15f7...@laptop.org

[Fwd: Re: Ambient light sensing via LED response]

2009-05-06 Thread Reinder E.N. de Haan
Original Message Subject: Re: Ambient light sensing via LED response Date: Thu, 07 May 2009 00:02:49 +0200 From: Reinder de Haan r...@mveas.com To: raf...@laptop.org References: 200904290017.n3t0hl2v006...@new.toad.com c5d4a4e5-b183-4b7d-bafb-3488e15f7...@laptop.org