Arduino Led Schaltplan. Int redpin 11. Arduino disclaims all other warranties express or implied arduino may make changes to specifications and product descriptions at any time without notice.
Arduino uno reference design usb boot en tm reference designs are provided as is and with all faults. You can watch complete tutorial by this video this project is based on arduin. Void loop for val 255.
Connect the cathode of the rgb led which is the longer pin of rgb led to the gnd of arduino and the other three pins to the pin 11 10 9 of arduino through the 220 ohm resistors.
How you can change this threshold level is by adjusting the potentiometer to either raise or lower the level. Analogwrite 9 128 val. We can also modulate the brightness of the led using analogwrite. Mq 3 alcohol sensor circuit schematic.
