Hello There,
I am trying to implement the following example
when i use
Arduino - Home and
Arduino - Home
everything works fine
If i use
Arduino Uno Rev3 — Arduino Official Store and
Arduino - Home
relay 4 doesn't respond.
If i use
Arduino Uno Rev3 — Arduino Official Store and
Arduino - Home
Arduino - Home
not even relay 4 doesn't respond but also all the three boards freeze when "NO" contact of relay 1 is under voltage.
Relays draw quite a bit of power.
Are you using an external source for that as you may be finding that the board does not have enough to work all 4 at once.
With almost all relays its better to use an external source and just use the ARduino to trigger them.
I use an external source but the problem remain.
After a few tries i realize that
If i use
Arduino Uno Rev3 — Arduino Official Store and
Arduino - Home
without ethernet shield everything works fine.
If i use
Arduino Uno Rev3 — Arduino Official Store and
Arduino - Home and
Arduino - Home
without assign ip address to ethernet shield
all freeze.
If i switch-off relay 1 relays 2,3,4 works
If i assign ip address to ethernet shield
#include <SPI.h>
#include <Ethernet2.h>
#include <EthernetUdp2.h>
byte mac[] = { 0x90, 0xA2, 0xDA, 0x11, 0x14, 0x30 };
IPAddress dnServer(10, 11, 12, 1);
IPAddress gateway(10, 11, 12, 1);
IPAddress subnet(255, 255, 255, 0);
IPAddress ip(10, 11, 12, 145);
.
.
.
Ethernet.begin(mac, ip, dnServer, gateway, subnet);
relay 4 doesn't respond
if I comment
// Ethernet.begin(mac, ip, dnServer, gateway, subnet);
relay 4 works.