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Description
RELAY, as its namesake, is a M5Unit that implenments a Relay functions. Relay can be used as an electrically operated switch, uses an electromagnet to mechanically operate a switch,to where it is necessary to control a large power load circuit by a separate low-power signal, like a digital signal output from a mircoprocessor. Up to 30V DC and 220V AC.
There are 3 pins named: ON, OFF, COM. You can program to make COM connect to ON or OFF, just by high and low out put of a digital GPIO.
Product Features
- Single-BUS control
- Up to 3A @ 30 V DC or 220 V AC
- Software Development Platform: Arduino, UIFlow(Blockly,Python)
- Two Lego-compatible holes
Kit includes
- 1x RELAY Unit
- 1x Grove Cable
- 1x 3.96 soket
Application
- Remote control of high-power appliances, such as refrigerators, Air Conditioners, TVs, etc.
Learn
Example
1. Arduino IDE
The code below is incomplete. To get complete code, please click here.
#include <M5Stack.h>
void setup() {
M5.begin();
M5.Lcd.clear(BLACK);
M5.Lcd.setTextFont(4);
M5.Lcd.setTextColor(YELLOW, BLACK);
//disable the speak noise
dacWrite(25, 0);
pinMode(26, OUTPUT);// RELAY Pin setting
}
void loop(void) {
digitalWrite(26, HIGH);// RELAY Unit work
delay(500);
digitalWrite(26, LOW);// RELAY Unit stop work
delay(500);
}
2. UIFlow
To get complete code, please click here.
More information
Schematic
PinMap
| M5Core(GROVE B) | GPIO36 | GPIO26 | 5V | GND |
| RELAY Unit | / | RELAY Controlling Pin | 5V | GND |
