I have two waterproof CDS sensors reading LED output in a vat of pulp that will determine the weight of hand made paper by reading density between the two. The CDS is reading fine on the serial monitor but the LED's are barely lighting even though the voltage is just over 5v on the perf board rails.…

DIY perf board shield

Chagrin October 11, 2012, 12:36am 3

Did you remember to pinMode(ledpin, OUTPUT);?

Topic		Replies	Views
Beginner Proto Shield Help Other Hardware Development	5	3056	May 6, 2021
D.I.Y Arduino Shield Project Guidance	15	1187	May 5, 2021
Help on faulty project. General Electronics	20	4617	May 6, 2021
Power LED Shield V2 Exhibition / Gallery	5	4179	May 6, 2021
LED with wave shield LEDs and Multiplexing	8	2384	May 6, 2021