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lattepanda and relay problem

userHead Account cancelled 2016-11-01 03:29:36 2885 Views1 Replies
hello I'm using a Lattepanda 4G/64GB
I upload the standart firmata to embeded arduino.
I'm trying to activate the relays with D4 and D5 pins. I wrote the code with visual studio c# , there is no problem with working my own software but when I pull out and then plug in the adapter then the relay states turning on. How can I prevent this situation. I want to set relay state off after repower the lattepanda
2016-11-03 02:33:31 This is the Arduino pin initialization problem, try to find a solution in the Arduino forum. Or you can change normally open and normally closed pin on the relay. userHeadPic Wendy.Hu