# LILYGO T-01C3

> LILYGO T-01C3 is an ultra-compact ESP32-C3 RISC-V module with Wi-Fi and BLE 5.0, available with or without pre-soldered pins, featuring 5.33µA deep sleep current.

## Quick Facts

- **Brand:** LILYGO
- **Board Type:** ESP32-C3
- **Price:** ~$3.99
- **Product Readiness:** developer
- **CPU:** ESP32-C3
- **CPU Architecture:** RISC-V 32-bit
- **CPU Cores:** 1
- **RAM:** 400KB SRAM
- **Flash:** 4MB
- **Power:** 3.3V
- **Operating Voltage:** 3.3V
- **Antenna:** Built-in PCB antenna

## Connectivity

- **Wifi:** 802.11 b/g/n
- **Bluetooth:** BLE 5.0

## Open Source

- **Firmware:** Yes
- **Schematics:** Yes
- **PCB Layout:** No

## Compatible Firmware

arduino, micropython, esphome

## Use Cases

- iot
- environmental-monitoring
- smart-home
- plant-monitoring

## Components

- **ESP32-C3** (mcu): 32-bit RISC-V single-core processor at 160MHz with Wi-Fi 802.11 b/g/n, Bluetooth 5.0 BLE, 400KB SRAM, 4MB flash, and 5.33µA deep sleep current. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.espressif.com%2Fsites%2Fdefault%2Ffiles%2Fdocumentation%2Fesp32-c3_datasheet_en.pdf&ref=openhardware.directory&product=lilygo-t-01c3&source=md-export)

## Protocols

- **SPI**
- **I2C**
- **UART**
- **PWM**
- **ADC**

## Available Software

- **[Arduino IDE]()** (open-source)
- **[ESP-IDF]()** (open-source)
- **[MicroPython]()** (open-source)

## Description

## Overview

The LILYGO T-01C3 is an ultra-compact development module based on the ESP32-C3, a 32-bit RISC-V single-core microcontroller with integrated Wi-Fi 802.11 b/g/n and Bluetooth 5.0 BLE. It targets space-constrained applications where minimizing board footprint is critical. The module achieves an impressive deep sleep current of 5.33µA, making it suitable for battery-powered IoT nodes. It is available in two pin configurations: pre-soldered or without pins for surface mounting. The T-01C3 is supported by the Arduino IDE and is compatible with the ESP-IDF and MicroPython. A schematic PDF is available in the GitHub repository for hardware integration.

## Where to Buy

- [LILYGO Official](https://openhardware.directory/r?to=https%3A%2F%2Flilygo.cc%2Fproducts%2Ft-01c3&ref=openhardware.directory&product=lilygo-t-01c3&source=md-export) — $3.99

## Resources

- [product](https://openhardware.directory/r?to=https%3A%2F%2Flilygo.cc%2Fproducts%2Ft-01c3&ref=openhardware.directory&product=lilygo-t-01c3&source=md-export)
- [github](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2FXinyuan-LilyGO%2FT-01C3&ref=openhardware.directory&product=lilygo-t-01c3&source=md-export)

## Tags

`esp32-c3`, `risc-v`, `wifi`, `bluetooth`, `ultra-compact`, `low-power`, `lilygo`, `iot`

## Images

![LILYGO T-01C3](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-01c3/63ff7ca24ad1.jpg)
![LILYGO T-01C3](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-01c3/f139102d0331.jpg)
![LILYGO T-01C3](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-01c3/bc2f1889146f.jpg)
![LILYGO T-01C3](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-01c3/702a58fbe61d.jpg)
![LILYGO T-01C3](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-01c3/b92bc3dce3b9.jpg)
![LILYGO T-01C3](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-01c3/c349557036e8.jpg)
![LILYGO T-01C3](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-01c3/aa15f39401df.png)

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