Hello there some news here, and some questions !
I try to use an external PSU, but i have a question, mine is +12/+5/0/-12 (Iwant to use a Aout NG) The problem is :
On the LPC17 Page, it say on J1 :
Optional connection to a powersupply unit (PSU). A 7V-10V transformer, or a wall adapter could be used. At least 500 mA is recommended, especially if a backlit display is connected. AC or DC doesn't matter, since the rectifier behind J1 converts to DC anyhow. Also the polarity has not to be taken into account.
I thought I could power the SEQ V4 with 5V, but it looks like not, and it need 7-10V.
I can see on J2, that it can be used as +5V input to power the core.
Can i power all the SEQV4, including, everything needed, BLM, backlight screens,... via J2 ?
If not could i use a step up voltage regulator, to come from 5V to 9V without any problem ?
Something like that ? : http://www.pololu.com/product/2116
or : http://www.ebay.com/itm/2-in-1-Step-up-Step-down-Adjustable-Voltage-Module-DC-5V-9V-to-12V-12V-to-9V-5V-/271266514245?pt=LH_DefaultDomain_0&hash=item3f28be8545
Thanks for your answer. Bye !