MrDEB
Well-Known Member
been getting some input from audioguru about multiplexing a 10 x 10 led matrix.
The issue of leds being to dim was discussed at length.
After finding this circuit I wonder if dim leds is an issue??
the planned circuit is attached (only one led of planned display is attached.
found another circuit that uses 2n3904 at both ends of the leds with one end having a 10K resistor connected to the base and a 300 ohm resistor connected to the collector.
Will try and locate circuit
Any advice??
https://www.best-microcontroller-projects.com/led-dot-matrix-display.html
The issue of leds being to dim was discussed at length.
After finding this circuit I wonder if dim leds is an issue??
the planned circuit is attached (only one led of planned display is attached.
found another circuit that uses 2n3904 at both ends of the leds with one end having a 10K resistor connected to the base and a 300 ohm resistor connected to the collector.
Will try and locate circuit
Any advice??
https://www.best-microcontroller-projects.com/led-dot-matrix-display.html