What resistor shout i use for my Iset/RSet on my 8x8 matrix using a MAX7219, I know i should use the table below, BUT i dont have a data sheet for the LEDs (very bright blue) ISeg 1.5V 2.0V 2.5V 3.0V 3.5V 40mA 12.2k[ch937] 11.8k[ch937] 11.0k[ch937] 10.6k[ch937] 9.69k[ch937] 30mA 17.8k[ch937] 17.1…

What resistor?

BroHogan August 19, 2009, 11:56pm 3

26K worked well for me with the 8x8 RG "medium" matrix from Sparkfun.

Topic		Replies	Views
question about the MAX7219 IC Troubleshooting	10	1986	May 6, 2021
Arduino + MAX7219 + Eight 7-Segment LED. Interfacing	3	2159	May 6, 2021
Question about the correct resistor for MAX7219 RSET General Guidance	8	7906	May 5, 2021
Problem with MAX7219 Interfacing	10	6177	May 6, 2021
MAX7219 LED brightnes and supply LEDs and Multiplexing	11	7690	May 6, 2021