LilyGo has launched yet another product based on the ESP32 family of microcontrollers with the T-Embed WiFi IoT controller powered by an ESP32-S3 dual-core processor, equipped with a color display and a rotary encoder, and powered by a battery.
The device is programmable and can be used to control Smart Home and IoT devices connected over WiFi or Bluetooth. It also integrates a microphone and speaker, a microSD card for data logging, as well as a Grove connector and an 8-pin GPIO header for expansion.
- Wireless module – ESP32-S3-WROOM-1 module with an ESP32-S3 dual-core Xtensa LX7 processor with WiFi 4 and Bluetooth 5.0 connectivity, 4 to 16MB QSPI flash, up to 8MB PSRAM, PCB antenna; (Note it’s unclear which exact version is used)
- Storage – MicroSD card socket
- Display – 1.9-inch IPS color TFT LCD with 320 x 170 resolution (ST7789 driver), 350 Cd/m2 brightness
- Audio – 2x microphones, 8 Ohm @ 1W speaker
- Rotary encoder with key
- 24 detents
- 12 Pulse/360°
- Ring RGB light (7x LEDs)
- USB – 1x USB Type-C port for charging
- Expansion – 1x Grove connector, 1x 8-pin GPIO header (unpopulated)
- Misc – Reset button
- Power Supply – 2-pin connector for LiPo battery; battery charge and discharge protection circuit
- Dimensions – 95.4 x 36.40 mm
- Enclosure – ABS+PC material (optional translucent version)
The kit does not include a battery, but does ship with a 2-wire battery cable with a JST connector, an 8-pin socket for additional GPIO (I don’t think the enclosure will close if soldered) with a corresponding flat cable, as well as a speaker that needs to be connected to the main board.
It should not be surprising to find an ESP32 S-series battery powered solution since the ESP32-S2 and ESP32-S3 microcontrollers have been found in ultra-lower-power boards from Olimex, Smart Bee Designs, Unexpected Maker, and others. The GitHub repository only includes the mechanical design files for the enclosure at this time, but I’d expect the demo program shown in the video below to be added to the repo in due time.
LilyGo takes pre-orders for the T-Embed “IoT embedded panel” on its own website with deliveries scheduled to start on October 20. The price is $29.80 for the first 30 pieces, and then it will go up to $33.04. The device should eventually be able on Aliexpress or Banggood as well, but at the time of writing, it’s not listed on LilyGo’s Aliexpress store.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.