Author Archives

tlfong01

Electronics Hobbyist

https://plus.google.com/103602689234696675890/about

PWM Relay

How to protect GPIO from back current? Diode? [closed] Ask QuestionAsked yesterdayActive todayViewed 162 times2Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it’s on-topic for Electrical Engineering Stack […]

How to properly use a relay module with JD-VCC from Arduino/Raspberry? Ask QuestionAsked 25 days agoActive todayViewed 255 times11 I got two 4-relay-modules and I am probably doing something wrong because none of them seems […]

jd vcc relay problem

How to properly use a relay module with JD-VCC from Arduino/Raspberry? Ask QuestionAsked 23 days agoActive todayViewed 226 times11 I got two 4-relay-modules and I am probably doing something wrong because none of them seems […]

1-Wire problem

Issue with Pi 4 and 1wire Ask QuestionAsked todayActive todayViewed 16 times0 I’ve got a Pi 4 and went to hook up a couple sensors, the first being a DHT11, it’s working fine. The second […]

jdvcc relay notes

Did I burn my 4 relay module? Ask QuestionAsked 19 days agoActive todayViewed 96 times01 I got two 4-relay-modules and I am probably doing something wrong because none of them seems to work: My first […]

relay solenoid q&a

how to connect the solenoid valve and pump using a relay [closed] Ask QuestionAsked yesterdayActive yesterdayViewed 41 times0Closed. This question is off-topic. It is not currently accepting answers. This question does not appear to be specific to […]