Satellite1 Dev Kit
Satellite1 Dev Kit
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With the Satellite1 Dev Kit, you can create your own ultra-powerful voice assistant, smart speaker, and multi-sensor all in one product — fully compatible with the Home Assistant platform.
All orders placed on Feb. 17th 2026 or later will ship with the latest iteration of Satellite1, featuring the updates highlighted below.
Key Features:
- Microphone Processing: High-performance microphones with an XMOS audio processing chip.
- Audio Output: Supports high-quality Snapcast multi-room music playback via the powerful 25W built-in amplifier or headphone jack.
- Controls: 4 programmable tactile buttons, including hardware mute for privacy. 360 degree addressable LED ring.
- Sensors: Monitors room temperature, humidity, luminosity, and human presence (when paired with a mmWave radar sensor). Latest iteration comes with extra LD2450 connector on bottom of Hat board.
- Radios: Built-in 2.4 GHz Wi-Fi and Bluetooth® 5 (LE). Latest iteration comes with external WiFi antenna.
- Expandable: FX23L expansion connector for future accessories.
Processor:
- ESP32-S3: Dual-core 32-bit LX7, running at 240 MHz with 512 KB SRAM, 16 MB Flash, and 8 MB PSRAM.
- Audio Processor: XMOS XU316, 16-core 32-bit RISC running at 800 MHz with 3200 MIPS, 1024 KB SRAM, and 8 MB Flash.
- RPi: Hat board can optionally be powered by Raspberry Pi with FutureProofHomes firmware (experimental)
Audio Output:
- Line-level 3.5mm Headphone Output: PCM5122
- 25W Mono Amplifier Output: TAS2780
Sensors:
- Ambient Light: LTR-303ALS
- Temperature & Humidity: AHT20
- Optional Human Presence Detection: Add your own LD2410 or LD2450 for mmWave radar human presence detection.
Power Requirements:
- Recommend 30W USB-C Power Delivery
- Maximum: Boards support up to 20V @ 5A USB-C Power Delivery
Assembly:
Firmware:
- Firmware is factory installed. Connect to Home Assistant by following steps here.
- Firmware updates arrive over-the-air (OTA) or by using our ESP Web Flasher.
- Modify the firmware by using the ESPHome Dashboard Builder.
Additional Included Components:
- USB-C Power Delivery Adapter & Cable
- WiFi Antenna & IPEX Connector Cable.
Dimensions
Dimensions
When removed from packaging:
Width: 88 mm
Length: 88 mm
Height: 10 mm
Weight
Weight
When removed from packaging:
44 g
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Build the Satellite1 Together
Assembled kit last weekend. Great instruction video to follow. Speaker and crossover sound pretty good as well. Enclosure doesn't seem to affect reponse either.
So I‘ve started designing a speaker enclosure and ended up being done before the kit even arrived, because of the great documentation.
It would be great, if the kit would expose itself, like any other smart speaker does (but playing music through music-assistant is sufficient until then).
I bought 3 of these. Great sound.could be better on the mic but im happy with these as a replacement for google.
This is a pretty good alternative to the home assistant voice PE but in my opinion could be improved.
The good: The LEDs are great, it's easy to get up and running and the 3D printed case is great (I did the smallest squircle case and put it on top of a bookshelf speaker). The amplifier is powerful enough to power a proper bookshelf speaker which is great and the sound is really good.
The not-so-good:
- It seems to take a little longer to respond to the wake word than the other assistants I've tried
- It doesn't have the "mycroft" wake word built in
- There is no sensitivity option for the wake word
- There is no gain control for the microphone
- It doesn't integrate as nicely with music assistant (it doesn't use sendspin like the other assistants) and was more fiddly to set up
So overall I like it, but it's not as convenient as the others and it doesn't trigger as easily. I'm keeping it because the amplifier is good.
Need to provide a wizard (AI Model) for training your own wakeword = no offence but hey jarvis or hey Nabu??? Too embarrassing to use.
I just wanted: Yo Garry!