May I know where should I put the 0.1uF decoupling caps?Add 0.1uF decoupling caps to the uP
Can't read the schematic, it's too small. What is the circuit supposed to be doing?
the channel 1 is I attach to the first LED.Which pin is channel 1 attached to? Which microcontroller are you using?
May I know what is the pull up resistor ? What is the function of the pull up resistor? How is the pull up resistor going to connect to the output?What is the Vcc? Whatever is is, the 2 volt output with no pullup resistor may be reasonable if it's a micro with "weak" internal pullups.
The power supply is 4.44V, the output pin from PORTD is 3.97V . however when measure LED is 1.9-2.0V . the LED have light up.What do you measure for the Vss supply of the PIC, and what do you measure at the output pins? Do the LEDs light up?
by Jake Hertz
by Aaron Carman