HAM Relay
The HAM Relay has two relay outputs that you control from the app. It also has two general inputs, for example for door contacts.
The serial number starts with 22:. It is a device of the older generation.
What it measures
Section titled “What it measures”| Reading | Unit | Note |
|---|---|---|
| General input 1, 2 | open / closed | Shows when you configure the input. |
| Input counter 1, 2 | count | Counts the changes of the input. |
The app shows a general input as Gen. In. until you give it a name.
Typical uses
Section titled “Typical uses”- Remote control of two loads, for example a pump or lighting.
- Schedules for the outputs.
- Automation with local rules, from the state of the inputs.
Installation
Section titled “Installation”You connect the device to WiFi from the mobile app. Select HAM Relay in the list.
- Press and hold the setup button for a few seconds.
- Release the button when the green LED starts to blink.
- Continue with the steps in Connect to WiFi.
When the device is connected, the green LED stays on. See LED states.
Terminals
Section titled “Terminals”- Relay A: terminals 1 and 2. Relay B: terminals 3 and 4.
- 5-12 VDC power: terminals 5 (+) and 8 (GND).
- General inputs: terminals 7 (G1) and 6 (G2), with 8 (GND) as common.
Settings
Section titled “Settings”- Disable manual control: control from the device, for example from its buttons, is disabled.
- Do not keep track of data: the platform keeps no reading history for the device.
- Allow LAN commands: other devices on your local network can control this device. Keep the setting off if you do not need it.
General settings for all devices are in Device settings.
Controls
Section titled “Controls”The device has two outputs, Out and Out2. You turn them on and off from the device page. See Controls.
On the device page, tap Edit and then Settings on an output. There you set:
- Auto turn-off: the output turns off after the time that you set. The value 0 disables it.
- Power on value: the output state when the power comes back, off or on.
- Confirm output changes: the app asks for confirmation before it changes the output.
- PIN Code: the app asks for a PIN before it changes the output.
In the Notifications and Automation section of the page you find:
- Schedule: up to 6 schedules for the outputs. See Schedules.
- Local rules: 4 rules that run on the device without a cloud connection.
Troubleshooting
Section titled “Troubleshooting”- The device does not connect to WiFi: make sure that the router transmits on 2.4 GHz with a 20 MHz channel. See WiFi setup fails.
See also Device offline.
Specifications
Section titled “Specifications”| Outputs | 2 NO relays, 5 A at 230 V for a resistive load or 2 A for an inductive load |
| General inputs | 2 |
| Connectivity | WiFi 2.4 GHz, 20 MHz channel |
| Power supply | 5-12 VDC, 0.5 A |
| Operating temperature | -10 to 55 °C (5 V), -10 to 40 °C (12 V) |
| Dimensions | 55 x 44.1 x 21.5 mm |
| Material | ABS V-0 |
To buy, see the shop.

