# LILYGO T-SIM7080G S3

> ESP32-S3 development board with SIM7080G NB-IoT/LTE-M/GNSS module, 16MB flash, 8MB PSRAM, 18650 battery support, and USB-C connectivity for low-power IoT applications.

## Quick Facts

- **Brand:** LILYGO
- **Board Type:** dev-board
- **Price:** ~$29.6
- **CPU:** Xtensa LX7 dual-core @ 240MHz, FPU, AI instructions
- **CPU Architecture:** Xtensa LX7
- **CPU Cores:** 2
- **RAM:** 512KB SRAM
- **PSRAM:** 8MB
- **Flash:** 16MB
- **USB:** USB-C
- **Power:** 5V + Li-Ion 18650
- **Operating Voltage:** 3.3V
- **Weight:** 100g
- **Battery:** 18650 (user-supplied)
- **Charging Port:** USB-C
- **Antenna:** U.FL/IPEX

## Connectivity

- **Wifi:** 802.11 b/g/n
- **Bluetooth:** BLE 5.0
- **Cellular:** NB-IoT / LTE-M Cat-M1 (SIM7080G)

## Compatible Firmware

arduino, esp-idf, micropython

## Use Cases

- asset-tracking
- iot-sensor-node
- remote-monitoring
- smart-agriculture
- fleet-management

## Components

- **ESP32-S3R8** (mcu): Xtensa LX7 dual-core at 240MHz with 16MB flash, 8MB PSRAM, WiFi 802.11 b/g/n and BLE 5.0 — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.espressif.com%2Fsites%2Fdefault%2Ffiles%2Fdocumentation%2Fesp32-s3_datasheet_en.pdf&ref=openhardware.directory&product=lilygo-t-sim7080g-s3&source=md-export)
- **SIM7080G** (cellular-modem): SIMCom SIM7080G supports NB-IoT and LTE-M Cat-M1 on multiple global bands plus integrated GNSS for location tracking — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fsimcom.ee%2Fdocuments%2FSIM7080G%2FSIM7080G_Hardware_Design_V1.02.pdf&ref=openhardware.directory&product=lilygo-t-sim7080g-s3&source=md-export)
- **AXP2101** (battery-charger): Power management IC supporting single-cell lithium battery charging with fuel gauge and multiple LDO outputs — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2FXinyuan-LilyGO%2FT-SIM7080G-S3%2Fblob%2Fmain%2Fdatasheet%2FAXP2101_Datasheet_V1.0_en.pdf&ref=openhardware.directory&product=lilygo-t-sim7080g-s3&source=md-export)

## Description

## Overview

The LILYGO T-SIM7080G S3 is a powerful IoT development board combining the ESP32-S3 dual-core processor with the SIMCom SIM7080G multi-band NB-IoT/LTE-M module, enabling global cellular connectivity for low-power IoT deployments. The board features 16MB of flash memory and 8MB of PSRAM, providing ample resources for complex embedded applications.

The SIM7080G module supports NB-IoT and LTE-M (Cat-M1) networks across multiple frequency bands, making it suitable for worldwide deployment in smart city, asset tracking, and industrial monitoring applications. An integrated GNSS receiver provides location services without needing a separate GPS module.

Designed with power efficiency in mind, the T-SIM7080G S3 supports 18650 lithium battery operation with onboard charging circuitry. The ESP32-S3's ultra-low-power modes combined with NB-IoT's inherently low power consumption make this board ideal for battery-operated remote sensors that need to send periodic data updates over cellular networks.

The board exposes sufficient GPIO pins for connecting external sensors and peripherals, while the USB-C port supports both programming and charging. Compatible with Arduino IDE, ESP-IDF, and MicroPython development environments.

## Where to Buy

- [undefined](https://openhardware.directory/r?to=https%3A%2F%2Flilygo.cc%2Fproducts%2Ft-sim7080-s3&ref=openhardware.directory&product=lilygo-t-sim7080g-s3&source=md-export) — 29.60

## Resources

- [product](https://openhardware.directory/r?to=https%3A%2F%2Flilygo.cc%2Fproducts%2Ft-sim7080-s3&ref=openhardware.directory&product=lilygo-t-sim7080g-s3&source=md-export)
- [github](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2FXinyuan-LilyGO%2FT-SIM7080G-S3&ref=openhardware.directory&product=lilygo-t-sim7080g-s3&source=md-export)

## Images

![LILYGO T-SIM7080G S3](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-sim7080g-s3/7780c6d37bd0.jpg)
![LILYGO T-SIM7080G S3](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-sim7080g-s3/cb4d9b77e328.jpg)
![LILYGO T-SIM7080G S3](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-sim7080g-s3/6a2e88936ac7.jpg)
![LILYGO T-SIM7080G S3](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-sim7080g-s3/ee5ef57cb0ed.jpg)
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![LILYGO T-SIM7080G S3](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-sim7080g-s3/aa15f39401df.png)

> **Battery Powered:** LiPo/Li-Ion

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