Lilygo T-Beam Supreme
The T-Beam Supreme offers a solid platform on which to build Lora-based mesh communication solutions. The Lilygo T-Beam Supreme is a very solid option for mesh node firmware, and is what we put in the ChatterBox GPS Mesh Node.
Mesh Node with GPS
The Lilygo T-Beam Supreme is an ESP32-based LoRa development board that is ready to run mesh firmware right out of the box. All you need to add is a battery and a case, and you’re ready to go.
Good Things
Integrated GPS
OLED Display
Dedicated Realtime Clock
SX1262 transceiver performs very well
Ready to run (just add battery)
Easy to find 3D printable enclosures
Board design allows drop-in installation to enclosures
Integrated 18650 battery holder / charger
The OLED Display
A few images of the OLED display in action as shown here.
As you can see, it allows around 3-4 lines of small text, which is enough to display a little bit of what the node is doing.
Not so Good
Without power, RTC only maintains time for a few days
GPS cannot be easily disabled/disconnected to save power
Grove connector appears already occupied by GPS…so why is it there?
Consumes more power than other options, mainly due to integrated GPS
Pigtail connector for LoRa and GPS antennas
Specs
The Lilygo T-Beam Supreme is an ESP32-based LoRa development board that is ready to run mesh firmware right out of the box. All you need to add is a battery and a case, and you’re ready to go.
Platform: ESP32-S3 FN8
Flash: 8MB, PSRAM: 8MB
SD Card Reader
Realtime Clock
OLED
Power Management
WiFi/Bluetooth
IMU & Magnetometer (I did not test)
Available with UBLOX or L76 GPS
Available Frequencies: 433, 144, 868, 915
Rating: Very GOod
If you plan to stay connected to power most of the time or have a good solar charging system in place, this is a very easy to use and solid option for off-grid mesh communication systems. Under typical use, the battery life is around 24 hours with the ChatterBox mesh node firmware.
If you need GPS capability in your mesh node, this is also good option.
If you don’t need GPS, you may want to consider a lower-power option, such as the T3S3, for longer battery life and easier solar charging.