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3 questions
5
votes
1
answer
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Sainsmart 12V, 16 Channel relay module connected to RpiZW has unwanted triggering when booting
I'm trying to get the hydrosys4 open source irrigation control software to work with my 16 channel relay board and raspberry pi zero w.
When the pi boots up the relay is triggered multiple times, ...
- 61
1
vote
0
answers
114
views
128x64 LCD install to Pi Zero W
This is my first Rasp project, so please be understanding. I have Raspberry Pi Zero W and 128*64 dot china LCD. I do not have any program done for the screen yet.
When start my Rasp only backlight ...
- 23
7
votes
3
answers
68k
views
Using single 5V relay (jqc-3ff-s-z) - safety advice required
Above is relay I'm using and everything works as expected using diagram below.
I will add 1n4148 diode on IN line for safety and will connect VCC to power supply before Pi.
Can I use ground (GND) ...
- 95