ESP32-S3-ETH-8DI-8RO
The Waveshare ESP32-S3-ETH-8DI-8RO and ESP32-S3-ETH-8DI-8RO-C are the main relays currently supported in Sensa Nomad. The main difference is ESP32-S3-ETH-8DI-8RO is for RS485 and ESP32-S3-ETH-8DI-8RO-C supports CAN.
If you are unsure, purchase the ESP32-S3-ETH-8DI-8RO-C model as the CAN model is useful for wired battery BMS options.
Sensa Connection Method
Network: Ethernet or Wi-Fi.
Installation
Mount the relay board and wire each circuit it switches to one of its relay outputs. Connect it to your router or network switch by network cable, or use Wi-Fi.
Configuration
Join Wireless Network
If you are configuring the relay for Wifi, follow these steps. This is not required if you are connecting your relay with ethernet.
Steps:
-
On your mobile or another wireless device, a new wireless SSID should appear named sen-setup-btp. Join this network, the password is sensasetup
-
You will then be presented with a list of all the SSIDs available, select YOUR wireless network and enter YOUR wireless password.
- Power off the device and power on. The device should then join your network.
Running Web Interface
The device has a basic web interface which is useful to ensure the device is running and check the logs.
Steps:
- Identify the ip address of the device from your wireless network. You should see the device on your router network. The device will be ss-rly-8di-8ro-e-xxxxxx for ethernet version or ss-rly-8di-8ro-w-xxxxxx for the wifi version, where xxxxxx is the last 6 characters of the MAC address of the unit.
- Connect to your ip address in your browser
- You will be prompted for a user and password, user: admin, password: sensaweb
Adding to Sensa Nomad
Your relay arrives with its firmware installed. Once it is on your van's network, Sensa finds it on its own. Open Settings, choose the Devices tab, tick it under Discovered and press Add Selected Devices. If it is not there yet, press Scan.
See Adding devices for more.