16 Bit Relay-based 2:1 Mux + Not Unit. Used to implement the Zero and Not functions of the Relay2Tetris ALU
Use PCB-GP for production. It has teardrops and ground-plane.
Relay2Tetris project details here: https://github.com/RJWoodhead/Relay2Tetris
NOTE: This board is being revised; see project notes for more details.
Soft starter for Angle grinder, Miter saw and other funny jumping during power on universal motor equipment.
Also it saves plastic gears applying less force during slow starting.
TRIAC used to soft start motor from 30% to 100% power, then relay used to feed full mains sine wave to motor. Also it supports soft stop with start/stop buttons.
Do not apply load to motor before relay latching to pre...
The 5V Relay Module KY-019 is perfectly made for Arduino application, is part of the "37 In 1 Sensor Module Board Set Kit For Arduino".
It has three pins, the VCC, GND and Signal. It can act as switch if the circuit and the load circuit have different supply voltage.
It is commonly use if the load circuit is AC. It is a switch used to connect isolated connection from the circuit using a circuit si...
# ESP8266 I/O shield #
Main board for inputs and outputs multi IO for for exemple central heating system with FET outputs, relais outputs and 1-wire connection.
Need an ESP 8266 devboard.
On board 5V and 3.3V from 12 to 24V input.
Used this before making the one with ESP32 and more I/O and calculation power.
Works fine for many uses.
ESP code generated by Jeeduino plugin in Jeedom but you may...
USB RS232 Relay
The main objective of this board is to ring an school bell using a PC program written in python.
- This project is the interface of a PC to a Relay using a simple USB RS232 adapter.
- This approach was selected because the parts are easily found in any PC parts store.
- The relay is activated/deactivated using the RTS line of the serial port, any...
Seconsor controlled relay to be used for pump, main switch etc. S1 switch to be replace by magnetic water sensor (sump), photocell etc. For sump (drain pump) a timer might be needed to delay the start. This depends on the lenght of the sensor.
This is a simple circuit which controlls a relay with both LDR and PIR technology. you can supply 12v AC by connecting a 12v transformer to the 2 pinned **SCREW** header.If you dont have a transformer, you can directly connect a 6v battery to power this through the **'+DC6V' header**.
The LDR mode turns ON the relay when it's dark while the PIR mode turns ON the relay when theres a motion within...