Satellite1.1 Dev Kit (DIY)
Satellite1.1 Dev Kit (DIY)
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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 Satellite1.1 design, featuring the enhancements 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
I couldn't find a YouTube tutorial on how to mount the external Wi-Fi antenna. But Google AI helped me.
The hardware is great,the integration with home assistant is great. I've bought 4 now!
I know its beta DIY but it's been working good. There are a lot of problems but its on the HA/MA side as nothing seems to be immune ;) The sound for music is great. It's better than my echo's and I love having the control of playing local plex music or spotify.
Actually really enjoyed the process of getting my dev kit assembled. At first, the overall process was intimidating when I looked at all the pieces in the box, but after going through all the documentation, it was pretty fun and easy.
The voice commands are super fast and responsive, which is awesome. The only reason it is not a five-star review is that the sound quality is just not as good as comparable-size Sonos speakers. Otherwise, I would love to do a full transition away from Sonos to these.
After receiving the replacement Dev Kit, which actualy worked, I must say that I am happy with the product.