M5Stack 4-Channel Relay 13.2 Module V1.1 User Manual

1. Introduzzjoni

The M5Stack 4-Channel Relay 13.2 Module V1.1 is a versatile relay module designed for simplified circuit control. It features four onboard mechanical relay control channels (Normally Open, Common) and is ideal for reliable and efficient control of DC circuitry. Utilizing the I2C communication protocol, this module optimizes IO resources for seamless integration into various projects. Its jumper cap design allows for easy switching between active and passive relay modes, accommodating diverse circuit requirements. This module is specifically designed for DC circuit switching, supporting a maximum load capacity of 24W (DC 24V @ 1A) per channel. It also incorporates built-in external power voltage detection and a DC-DC circuit to power the host, enhancing overall safety and stability.

2. Karatteristiċi

• MCU: STM32G030F6® 32-bit Cortex®-M0+ CPU
• Komunikazzjoni: I2C communication interface (address: 0x26)
• Relay Channels: 4 independent relay control channels
• Kapaċità tat-Tagħbija: Maximum load capacity 24W (DC 24V@1A) per channel
• Modi tax-Xogħol: Supports two modes of operation (active and passive)
• Voltage Sejbien: Vol inkorporattage detection capability
• Kompatibilità: Compatible with Arduino, UIFlow, and other programming platforms

3. Kontenut tal-Pakkett

• 1 x M5Stack 4Relay Module 13.2 V1.1
• 5 x 2.54mm-2P Wiring Terminal Blocks (green)
• 10 x Pin Jumpers
• 1 x Wiring Instructions (manual)

4. Speċifikazzjonijiet

5. Setup

5.1 Konnessjoni tal-Enerġija

• The module requires a DC input voltage ta '5-24V.
• Connect the power supply to the DC INPUT terminals (VIN and GND). Ensure correct polarity (inner positive, outer negative for DC5521 jack).
• The module includes a DC-DC circuit to power the host M5Core.

5.2 Konnessjonijiet tar-Relay

• The module provides four relay channels, each with Normally Open (N.O.) and Common (COM) terminals.
• Connect the load to be controlled to the appropriate N.O. and COM terminals for each relay (OUT1-OUT4).
• Ensure the load does not exceed 24W (DC 24V@1A) per channel.

5.3 I2C Communication

Connect the module to your M5Core or other compatible microcontroller via the I2C interface. The standard I2C pins are:

5.4 Working Mode Selection (Jumper Caps)

The module supports active and passive working modes, selectable via jumper caps. Refer to the wiring instructions provided in the package for specific jumper configurations based on your application needs. The overview image (Figure 1) illustrates the concept of connecting HPWR to MBUS for power supply directly.

6. Istruzzjonijiet Operattivi

The 4Relay Module 13.2 V1.1 is controlled via the I2C communication protocol. The default I2C address is 0x26. You can control the status of the four relays and read ADC values using specific registers.

6.1 I2C Protocol Register Map

Key registers:

• Relay Control (Addr: 0x26, Reg: 0x10, R/W): This register controls the status of the four relays.
• Bit 0: Relay 1 status
• Bit 1: Relay 2 status
• Bit 2: Relay 3 status
• Bit 3: Relay 4 status
• Set the corresponding bit to 1 to activate the relay, 0 to deactivate.
• ADC 8Bits (Addr: 0x26, Reg: 0x20, R): Reads 8-bit ADC value (0-255).
• ADC 12Bits (Addr: 0x26, Reg: 0x30, R): Reads 12-bit ADC value (0-4095).
• Firmware Version (Addr: 0x26, Reg: 0xF0, R): Reads the firmware version number.
• I2C Address (Addr: 0x26, Reg: 0xF0, R/W): Allows changing the I2C address (1-127).

6.2 Software Libraries and Examples

M5Stack provides libraries and examples to facilitate programming with the module:

• Arduino: Module13.2 4Relay v1.1 Arduino Library
• Examples: Module13.2 4Relay v1.1 Example with M5Core, Module13.2 4Relay v1.1 Example with M5Core2
• Firmware: Module13.2 4Relay v1.1 Internal Firmware

These resources can be found on the official M5Stack documentation website or GitHub repository. For detailed programming instructions, refer to the specific library documentation.

7. Applikazzjonijiet

The M5Stack 4-Channel Relay 13.2 Module V1.1 is suitable for a variety of applications, including:

• General on/off control for DC devices
• Solenoid valve control in automation systems
• Switching DC control loads
• Integration into Internet of Things (IoT) projects requiring switching capabilities

8. Skematika

For advanced users and developers, the detailed schematic diagram of the module is provided below:

A PDF version of the schematics is also available for download: Module13.2 4Relay v1.1 Schematics PDF

9. Għajnuniet għall-Utenti

• Provvista tal-Enerġija: Always ensure the DC input voltage is within the 5-24V range to prevent damage to the module.
• Ġestjoni tat-Tagħbija: Do not exceed the maximum load capacity of 24W (DC 24V@1A) per relay channel. Overloading can lead to relay failure or damage.
• Indirizz I2C: If using multiple I2C devices, verify that the 4Relay module's I2C address (default 0x26) does not conflict with other devices. The address can be changed via software if necessary.
• Settings tal-jumpers: Double-check jumper cap configurations for active/passive modes before powering on to ensure desired operation.
• Wiring: Use appropriate gauge wires for your loads to prevent overheating and ensure stable connections.

10 Issolvi l-problemi

• Il-Modulu Mhux Jirrispondi:
  • Check power supply connections and voltage.
  • Verify I2C wiring (SDA, SCL, VCC, GND) and ensure the I2C address is correct (default 0x26).
  • Confirm that the M5Core or host controller's I2C bus is initialized and functioning.
• Ir-Relay Mhux Qed Jattiva:
  • Ensure the load is correctly wired to the N.O. and COM terminals.
  • Check the load's power requirements and ensure it does not exceed the relay's capacity.
  • Verify the I2C command sent to the relay control register (0x10) is correct for the desired relay.
  • Inspect jumper settings for active/passive mode.
• Incorrect ADC Readings:
  • Tiżgura l-voltage detection input is correctly connected.
  • Verify the correct ADC register (0x20 for 8-bit, 0x30 for 12-bit) is being read.

11. Manutenzjoni

• Tindif: Żomm il-modulu nadif u ħieles mit-trab u l-fdalijiet. Uża drapp artab u niexef għat-tindif.
• Ambjent: Operate the module within its specified environmental conditions (temperature, humidity) to ensure longevity.
• Konnessjonijiet: Periodically check all wiring connections for tightness and corrosion, especially in industrial or high-vibration environments.
• Aġġornamenti tal-Firmware: Check the M5Stack official webis-sit għal kwalunkwe aġġornamenti tal-firmware disponibbli li jistgħu jtejbu l-prestazzjoni jew iżidu karatteristiċi.

12. Garanzija u Appoġġ

Għal informazzjoni dwar il-garanzija, appoġġ tekniku, u riżorsi addizzjonali, jekk jogħġbok irreferi għall-paġna uffiċjali tal-M5Stack. website or contact M5Stack customer service directly. Keep your purchase receipt for warranty claims.