LILYGO T-Pico C3
Dual-MCU board combining RP2040 and ESP32-C3, with a 1.14-inch ST7789V display, WiFi, BLE 5.0, and Arduino/MicroPython support — bringing Raspberry Pi Pico connectivity to wireless IoT projects.
$9.20
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Specifications
Components
Raspberry Pi RP2040 dual-core ARM Cortex-M0+ at 133MHz with 264KB SRAM, flexible PIO state machines, and 30 GPIO pins.
Espressif ESP32-C3 RISC-V single-core at 160MHz providing WiFi 802.11 b/g/n and BLE 5.0 as a wireless coprocessor.
Sitronix ST7789V TFT LCD driver for the 1.14-inch 135×240 IPS panel via 4-wire SPI.
Bus Interfaces
GPIO Map
Overview
The LILYGO T-Pico C3 is an innovative dual-MCU development board pairing the Raspberry Pi RP2040 with an Espressif ESP32-C3 wireless coprocessor. The RP2040 handles real-time logic and peripheral control via its dual-core ARM Cortex-M0+ at 133MHz and unique PIO state machines, while the ESP32-C3 provides WiFi 802.11 b/g/n and BLE 5.0 connectivity. The 1.14-inch ST7789V IPS display (135×240) allows status output and simple UIs.
This architecture lets developers use MicroPython or C/C++ on the RP2040 for deterministic timing tasks while offloading wireless communication to the ESP32-C3 — a useful split for applications that need both precise GPIO control and network connectivity without sacrificing either.
The T-Pico series is also available as the Pro (RP2040 + ESP32-C6 + 2.33" touch display) and 2350 (RP2350 + ESP32-C6 with Thread/Zigbee). USB-C provides programming for both chips, and standard headers expose GPIO from both processors.
Use Cases
4IoT
Internet of Things applications including connected sensors, actuators, and smart devices that communicate over WiFi, BLE, LoRa, or other wireless protocols.
Smart Home Dashboard
Wall-mounted or tabletop display showing Home Assistant dashboards, sensor readings, and smart home controls.
Weather Display
A dedicated screen that shows weather information including current conditions, temperature, humidity, pressure, and multi-day forecasts.
IoT Gateway
Acting as a local IoT gateway that aggregates data from sensors, runs MQTT broker, Node-RED, or Home Assistant, and bridges to the cloud.
Resources
Where to Buy
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