4Relay Module
SKU:M121
Description
4-Relay Module is a 4-Channel Relay module compatible with M5Stack Core and Core2 series, with 4-channel mechanical relays (NO, COM). It supports I2C protocol. Also, it can be set by jumper into active/passive modes. This relay module supports DC control only, and Maximum load 24W (DC 24V@1A). Suitable for small load circuit control.
Product Features
- Embedded with STM32F030F4:
- I2C communication (Addr: 0x26)
- Relay:
- 4x relay module (COM, NO interface)
- Maximum load 24W (DC 24V@1A)
- Supports two operation modes (selected by jumper).
- Active mode.
- Power input connects with relay NO port, to supply load directly.
- Passive mode.
- Power input not connects to the relay port. The user's circuit needs individual power supply.
- Power input (Support DC input only).
- DC 5-24V INPUT -> M5 BUS HPWR Bus (Controlled by jumper. When stacking with several different M5 modules, HPWR Bus can supply power to other modules that need 24V power, such as SERVO2 module, etc.)
- Development platform: Arduino, UIFlow(coming soon)
Includes
- 1x 4-Relay Module
- 5x Wiring Terminal 2.54mm-2P (green)
- 10x PIN Jumper
- 1x Wiring Instructions
Application
- On/off control
- Solenoid valve control
- DC control load on/off
Specification
| Specifications |
Parameters |
| Main Control Chip |
STM32F030F4 |
| Communication interface |
I2C communication interface (addr: 0x26) |
| Support operating mode |
Active control / Passive control |
| Relay channels |
4x(COM, NO interface) |
| Power input interface |
DC 5-24V |
| Load capacity |
4 channels max. 24W (DC 24V@1A) |
| Relay terminal specifications |
2.54-2P |
| Net Weight |
37.2g |
| Gross Weight |
37.6g |
| Product size |
54.2*54.2*13.2mm |
| Package size |
95*65*25mm |
Schematic
Pin Mapping
| M5Core |
GPIO22 |
GPIO21 |
5V |
GND |
| 4Relay Module |
SCL |
SDA |
5V |
GND |
Example
Arduino
- 4Relay Control
- Library
- Firmware
