Sensor Definitions¶
Once added to Home Assistant you can configure different settings for your TEMP-1. Use the tabs below to see what each entity does, grouped the same way Home Assistant displays them.
How often readings update
The Default Update column is how often each sensor refreshes while the TEMP-1 is awake. By default Prevent Sleep is on, so the device stays awake and reports continuously at these intervals. Turn Prevent Sleep off to let the TEMP-1 deep-sleep between readings for more accurate onboard AHT20 temperature and humidity (the ESP chip's heat skews them while it is awake); it then wakes for about 90 seconds, reports, and sleeps for the Sleep Duration.
To update firmware on a sleeping device, just click Update on the Firmware Update entity and it installs the next time the device wakes (the firmware keeps itself awake until the update finishes, so you don't need to do anything else). The optional OTA helper is a separate toggle that overrides Prevent Sleep to keep a device awake on demand.
| Control | What it does |
|---|---|
| RGB Light | One RGB Neopixel LED. Click the light bulb or color wheel to change the color. Use the toggle to turn it on or off. |
| Alarm Outside Temp Range | Sounds the onboard buzzer when the selected probe reads outside the Min Probe Temp to Max Probe Temp range. Use the toggle to turn it on or off. Defaults to off. |
| Select Probe | Chooses which probe the TEMP-1 reads: Temperature (the Dallas DS18B20 probe, available in long or short versions) or Food (the stainless steel, food-safe probe for grilling and cooking). |
| Sensor | Default Update | Details |
|---|---|---|
| Board Temperature | 60s | Onboard air temperature from the AHT20. Adjusted by the Board Temperature Offset. |
| Board Humidity | 60s | Onboard relative humidity from the AHT20. Adjusted by the Board Humidity Offset. |
| Temperature Probe | 60s | Reading from the Dallas DS18B20 probe. Active when Select Probe is set to Temperature. Adjusted by the Temp Probe Offset. Ideal for fridge/freezer and aquatic monitoring. |
| Food Probe | 3s | Reading from the stainless steel, food-safe NTC probe. Active when Select Probe is set to Food. Adjusted by the Food Probe Offset. Designed for grilling, baking, and other cooking. |
| Temperature Probe 2 | 60s | Second Dallas DS18B20 probe on the one-wire bus. Disabled by default. |
| Temperature Probe 3 | 60s | Third Dallas DS18B20 probe on the one-wire bus. Disabled by default. |
| Temperature Probe 4 | 60s | Fourth Dallas DS18B20 probe on the one-wire bus. Disabled by default. |
| Setting | Default | What it does |
|---|---|---|
| ESP Reboot | — | Restarts the device. Helpful for troubleshooting or refreshing the connection. |
| Board Temperature Offset | 0.0 °C | Calibrates the Board Temperature reading to a known value. Range is -70 to +70 °C. |
| Board Humidity Offset | 0 % | Calibrates the Board Humidity reading to a known value. Range is -70 to +70 %. |
| Temp Probe Offset | 0.0 °C | Calibrates the Temperature Probe reading to a known value. Range is -70 to +70 °C. Disabled by default. |
| Food Probe Offset | 0.0 °C | Calibrates the Food Probe reading to a known value. Range is -70 to +70 °C. Disabled by default. |
| Max Probe Temp | 125.0 °C | Upper threshold for the Alarm Outside Temp Range toggle. |
| Min Probe Temp | -55.0 °C | Lower threshold for the Alarm Outside Temp Range toggle. |
| Probe Temp Difference Threshold | 0.0 °C | Temperature change that triggers a report when Notify Only Outside Temp Difference is on. Disabled by default. |
| Notify Only Outside Temp Difference | Off | Wakes the device to report only when the probe temperature changes by more than the Probe Temp Difference Threshold, instead of every wake cycle. Disabled by default. |
| Sleep Duration | 8 min | How long the TEMP-1 stays in deep sleep between wake cycles (only used when Prevent Sleep is off). |
| Prevent Sleep | On | Keeps the device awake instead of deep-sleeping, so it reports continuously. Turn it off to let the TEMP-1 deep-sleep between readings for more accurate onboard AHT20 temperature and humidity. |
| Factory Reset ESP | — | Erases settings and returns the device to factory firmware defaults. Disabled by default. |
| Entity | Default Update | What it shows |
|---|---|---|
| Apollo Firmware Version | on boot | The Apollo firmware build installed on the device (for example, 26.3.2.1). |
| ESPHome Version | on boot | The ESPHome version the firmware was compiled with. |
| Firmware Update | — | Shows whether a firmware update is available and lets you update from inside Home Assistant. |
| IP Address | on connect | The device's IP address on your network. |
| Online | on change | Connection status of the device to Home Assistant. |
| RSSI | 60s | Wi-Fi signal strength in dBm. Values closer to 0 are stronger; a weak signal can affect reliability. |
| ESP Temperature | 60s | Internal temperature of the ESP32 chip. Runs warmer than the room because of the processor and Wi-Fi radio. |
| Uptime | 60s | How long the device has been running since its last reboot. |