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LILYGO

T-Embed CC1101

Build a display-based sub-GHz or RFID project.

Sub-GHz13.56 MHz RFIDInfraredRotary control

In stock at LILYGO when checked on 2026-09-24.

Radio equipment needs certification where you live (FCC, CE, UKCA, ISED, Anatel). Some devices are uncertified or restricted in Brazil. Buyers are responsible for their local law.

Bring along
Firmware for the functions you want to use.
Keep in mind
The base CC1101 model differs from the Plus version.
Source checked · Sep 16, 2026
T-Embed CC1101
Image creditMaker product image · LILYGO

(02) Blueprint

What’s published

Schematics published

LILYGO's T-Embed-CC1101 repo has a PDF schematic, a separate shield schematic, and STEP 3D mechanical files; no editable PCB source.

T Embed CC1101

Read straight from the maker’s repository. Open on GitHub

T Embed CC1101

GitHub
Research notes

Base model for the CC1101 line (Plus variant reuses this repo). Repo also carries an SI446X hardware variant folder not applicable to this base CC1101 SKU.

Every link checked 2026-09-27.

Hand this device to your agent. Everything on this page, as clean Markdown and JSON: specs, shops, prices, design files, parts.

Made the T-Embed CC1101? Put the badge on your README; it links here, with every shop that sells it.

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Specifications

Compute & display

4
Processor
ESP32-S3; dual-core Xtensa LX7
Memory
16 MB flash; 8 MB PSRAM
Display
1.9-inch IPS; 170 × 320; ST7789V over SPI
Development
Arduino and ESP-IDF

Radios & interfaces

6
Wi-Fi & Bluetooth
2.4 GHz 802.11b/g/n; Bluetooth LE 5
Sub-GHz
CC1101; 300–348, 387–464 and 779–928 MHz
NFC
PN532; 13.56 MHz
Infrared
Transmit and receive hardware
Controls
Reset and boot buttons; rotary control
Battery measurement
BQ27220 fuel gauge over I²C, address 0x55

Versions & setup

6
Case options
Transparent K230 and black K230-A
NRF24 expansion
Separate shield H787; do not confuse the base product with the Plus version
Assembly note
Maker warns that changing the enclosure can damage the infrared components
Factory build
The factory-test application requires PlatformIO; individual examples also support Arduino.
BLE example limit
The provided example is GATT UART; it does not provide A2DP audio.
RFID frequency limit
PN532 operates at 13.56 MHz; it does not read 125 kHz tags.

Power & physical hardware

7
Battery
3.7 V, 1300 mAh
Charger
BQ25896 at I²C address 0x6B; maker recommends charging at no more than 600 mA.
Expansion ports
Two QWIIC connectors, USB-C and microSD slot
Dimensions
97.5 × 39 × 31 mm, as listed in the hardware wiki
Audio
Microphone and speaker
Lighting
Eight WS2812 RGB LEDs on GPIO14
Storage compatibility
Maker tested SanDisk cards up to 32 GB; this is a tested configuration, not a universal capacity limit.

Build connections

8
Encoder pins
A GPIO4; B GPIO5; press GPIO0
I²C pins
SDA 8; SCL 18
SPI pins
SCK 11; MOSI 9; MISO 10. Chip selects: display 41, SD 13, CC1101 12.
Radio control pins
GDO0 3; GDO2 38; band switches 47/48
NFC control
PN532 address 0x24; reset 45; interrupt 17
Infrared pins
Transmit 2; receive 1
Audio pins
Mic data 42 / clock 39; speaker BCLK 46 / LRCLK 40 / data 7
Power and user key
Power enable 15; user key 6
What still needs checking
  • The store’s IO04 battery-ADC claim conflicts with the schematic and repository, which assign GPIO4 to the rotary encoder and provide a BQ27220 gauge. The profile follows those technical sources.
  • The README labels hardware v1.0-241103; the linked schematic is V1.0 dated 24-07-29. Check the actual board revision before wiring modifications.
  • Weight and complete package contents remain unconfirmed for the chosen case and expansion SKU.
T-Embed CC1101LILYGO
Buy$49.38+

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