Unit 4Relay
Description
4-Relay unit is an integrated 4-way relay module which can be controlled by I2C protocol. The maximum control voltage of each relay is AC-250V/DC-28V, the rated current is 10A and the instantaneous current can hold up to 16A. Each relay can be controlled independently, each on it's own. Each relay has status (LED) indictor as well to show the state of the relay at any given time.
Features
- 4-way relay
- AC-250V/DC-28V/10A
- LED status indication
- I2C communication (0x26)
Include
- 1x 4-Relay Unit
- 1x Grove Cable(20cm)
- 4x VH-3.96-4P Plug terminal
Applications
- Digital signal switching
- Programmable power switch
Specifications
| Resources | Parameter |
|---|---|
| Maximum input voltage | AC-250V/DC-28V |
| Rated current | 10A |
| Maximum instantaneous current | 16A |
| Communication | I2C(0x26) |
| Net Weight | 40g |
| Gross Weight | 84g |
| Product Size | 112*23*18mm |
| Package Size | 163*100*20mm |
EasyLoader
EasyLoader is a precise and fast program writer which has a built-in functionalities related to the 4-Relay unit. The Easyloader program can burn the firmware to the main controller board by simple easy to follow steps. Please install the corresponding driver according to the device type. Please click here to view the CP210X driver installation tutorial , M5StickC/V/T/ATOM series can be used without driver)
ButtonA switches relay number, ButtonB switches led sync/ async, Button C controls all relays
PinMap
| M5Core(GROVE A) | SDA(GPIO21) | SCL(GPIO22) | 5V | GND |
|---|---|---|---|---|
| 4-relay Unit | SDA | SCL | 5V | GND |
Schematic
Protocol
- Protocol type I2C
- I2C Address: 0x26
Mode control Reg 0x10
| Bit | Desc | R/W |
|---|---|---|
| 7 | R | R/W |
| 6 | R | R/W |
| 5 | R | R/W |
| 4 | R | R/W |
| 3 | R | R/W |
| 2 | R | R/W |
| 1 | R | R/W |
| 0 | LED Sync Mode 0:Manual 1:Auto | R/W |
Auto: LED follows the Relay status changes,Relay ON will light up, OFF will turn off.
RELAY control Reg 0x11
| Bit | Desc | R/W |
|---|---|---|
| 7 | LED1 / 1: ON 0:OFF | R/W |
| 6 | LED2 / 1: ON 0:OFF | R/W |
| 5 | LED3 / 1: ON 0:OFF | R/W |
| 4 | LED4 / 1: ON 0:OFF | R/W |
| 3 | RELAY1 / 1: ON 0:OFF | R/W |
| 2 | RELAY2 / 1: ON 0:OFF | R/W |
| 1 | RELAY3 / 1: ON 0:OFF | R/W |
| 0 | RELAY4 / 1: ON 0:OFF | R/W |
Example
Arduino
- M5Unit-4RELAY - with M5ATOM
- M5Unit-4RELAY - with M5CORE
- M5Unit-4RELAY - with M5CORE2
- M5Unit-4RELAY - with M5STICKC
- M5Unit-4RELAY - with M5STICKC-PLUS
UIFlow
Video
- UIFlow2.0 4Relay Unit