The MAQ20-DORLY20 module offers 20 isolated SPST latching relay output channels that can switch between 2 A at 30 V and 0.4 A at 150 V. Each channel has contact state readback to verify the physical ...

apart from the module only a few external components are needed to build a relay-driver circuit. Yes, there is a chance to realize one simple non-arduino project of a forgetful plant waterer! If you ...

In this quick Arduino ... int Relay = 2; int stateRelay = LOW; int stateButton; int previous = LOW; long time = 0; long debounce = 500; int stayON = 5000; //stay on for 5000 ms void setup() { ...

It features a Broadcom SoC, USB ports, HDMI output, Ethernet, Wi-Fi ... Boot the Pi and complete the initial setup. Use Arduino to handle sensor input and relay control. Pi runs a Python Flask server ...