# Waveshare relais

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<span class="badge testing">TESTING</span> <span class="badge origin-etm">ETM</span> <span class="badge experimental">EXPERIMENTAL</span>

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Module de relais Waveshare (modèle 8 canaux RS485), pilotage via **Modbus RTU**.

## 1. Matériel requis

- Module Waveshare 8-Channel Relay (RS485)
- Adaptateur USB↔RS485 côté hub
- Alimentation 12 V DC + câble bus (A/B)

## 2. Raccordement RS485

A↔A, B↔B, masse commune, terminaison **120 Ω** en bout de bus.
Alimentation 12 V DC sur les bornes VCC/GND du module.

## 3. Adressage Modbus

Adresse par défaut : **1**. Configurable via l'utilitaire Waveshare ou par
commande Modbus de changement d'adresse.

Paramètres : **9600 bps, 8N1**.

## 4. Ajout dans PowerSync

Ajout manuel (port série, adresse esclave).
Voir [Ajouter un appareil](../../installation/application.md).

---

## Référence

<!-- BEGIN GENERATED: integrationpluginwaveshare-relay-d8.json -->
**Manufacturer:** Waveshare  
**Plugin:** `WaveshareRelayD8`

#### Supported models
| Model | Role | Transport | Pairing | Quantities |
| --- | --- | --- | --- | --- |
| **Waveshare Relay D8** | — | Modbus RTU | Auto-discovery | 17 |

#### Per-model detail
??? abstract "Waveshare Relay D8 — `waveshareRelayD8`"
    _Settings:_

    | Key | Label | Type | Range | Default | Read-only |
    | --- | --- | --- | --- | --- | --- |
    | `rtuMaster` | Modbus RTU master UUID | QString | — | — | no |
    | `slaveAddress` | Modbus slave address | int | 1–247 | `1` | no |

    _Measured quantities:_

    | Key | Quantity | Type | Unit |
    | --- | --- | --- | --- |
    | `connected` | Connected | bool | — |
    | `relay1State` | Relay 1 | bool | — |
    | `relay2State` | Relay 2 | bool | — |
    | `relay3State` | Relay 3 | bool | — |
    | `relay4State` | Relay 4 | bool | — |
    | `relay5State` | Relay 5 | bool | — |
    | `relay6State` | Relay 6 | bool | — |
    | `relay7State` | Relay 7 | bool | — |
    | `relay8State` | Relay 8 | bool | — |
    | `input1State` | Input 1 | bool | — |
    | `input2State` | Input 2 | bool | — |
    | `input3State` | Input 3 | bool | — |
    | `input4State` | Input 4 | bool | — |
    | `input5State` | Input 5 | bool | — |
    | `input6State` | Input 6 | bool | — |
    | `input7State` | Input 7 | bool | — |
    | `input8State` | Input 8 | bool | — |

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