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RA8875 25ma/100ma terminals
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RA8875 25ma/100ma terminals

by stecoop on Thu Jul 11, 2019 10:06 pm

Can someone explain the purpose of the two solder points on the back of the RA8875 breakout board, one is labeled +25ma, the other is labeled +100ma? And what does 'C.C.' stand for?

stecoop
 
Posts: 6
Joined: Sat Jul 06, 2019 4:16 pm

Re: RA8875 25ma/100ma terminals

by DonKrapf on Tue Aug 13, 2019 1:46 pm

By default, the board supplies 25 mA to the display. The options on the back allow you to add 25 mA and/or 100 mA to get 50 mA, 125 mA, or 150 mA total.

Note that the 7" TFT display (PRODUCT ID: 2354) wants 120 mA so solder the +100 mA connection closed if you're using that LCD.

See the full discussion here

DonKrapf
 
Posts: 13
Joined: Tue Mar 22, 2016 10:23 am

Re: RA8875 25ma/100ma terminals

by stecoop on Tue Aug 13, 2019 2:59 pm

DonKrapf wrote:By default, the board supplies 25 mA to the display. The options on the back allow you to add 25 mA and/or 100 mA to get 50 mA, 125 mA, or 150 mA total.

Note that the 7" TFT display (PRODUCT ID: 2354) wants 120 mA so solder the +100 mA connection closed if you're using that LCD.

See the full discussion here


Thank you for the info.

stecoop
 
Posts: 6
Joined: Sat Jul 06, 2019 4:16 pm

Please be positive and constructive with your questions and comments.