# LILYGO T7 Mini32 V1.5

> Updated ESP32 Mini32 development board with 8MB PSRAM, 4/16MB Flash options, dual-core 240MHz, CH9102 USB-serial, WiFi, BLE 4.2, and 1.25mm JST LiPo connector in a 40×31mm breadboard-friendly footprint.

## Quick Facts

- **Brand:** LILYGO
- **Board Type:** ESP32
- **Price:** ~$7.44
- **Product Readiness:** developer
- **CPU:** ESP32
- **CPU Architecture:** Xtensa LX6 dual-core
- **CPU Cores:** 2
- **RAM:** 520KB SRAM
- **PSRAM:** 8MB
- **Flash:** 4MB/16MB
- **USB:** Micro-USB (CH9102)
- **Power:** 5V + LiPo
- **Operating Voltage:** 3.3V
- **Battery:** LiPo (user-supplied, 1.25mm JST)
- **Antenna:** Built-in PCB antenna

## Connectivity

- **Wifi:** 802.11 b/g/n
- **Bluetooth:** BLE 4.2

## Open Source

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

## Compatible Firmware

arduino, micropython, platformio, esphome

## Use Cases

- iot
- smart-home
- environmental-monitoring
- smart-switch

## Components

- **ESP32** (mcu): Dual-core Xtensa LX6 at 240MHz with 520KB SRAM, WiFi, and Bluetooth 4.2. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.espressif.com%2Fsites%2Fdefault%2Ffiles%2Fdocumentation%2Fesp32_datasheet_en.pdf&ref=openhardware.directory&product=lilygo-t7-mini32-v1-5&source=md-export)
- **CH9102** (usb-serial): CH9102 USB to UART bridge for flashing and serial communication. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.wch-ic.com%2Fproducts%2FCH9102.html&ref=openhardware.directory&product=lilygo-t7-mini32-v1-5&source=md-export)
- **LiPo Charger** (battery-charger): Onboard LiPo battery charger via 1.25mm JST 2-pin connector for single-cell batteries. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fdatasheet.lcsc.com%2Fszlcsc%2FTP4054_C16680.pdf&ref=openhardware.directory&product=lilygo-t7-mini32-v1-5&source=md-export)

## Protocols

- **UART**
- **SPI**
- **I2C**
- **I2S**

## Description

## Overview

The LILYGO T7 Mini32 V1.5 is the updated version of the classic T7 Mini32 ESP32 development board. It retains the same compact Mini32 footprint (40.27×31.07mm) while adding 8MB PSRAM for memory-intensive applications. The board is powered by the ESP32 dual-core LX6 processor running at 240MHz and is available in 4MB or 16MB Flash variants. Key improvements over V1.3 include the CH9102 USB-to-serial chip and a pin reassignment where GPIO16/17 are replaced by GPIO25/27 for better compatibility with expansion boards. It includes a 1.25mm JST 2-pin connector for single-cell LiPo batteries with charging support, making it an ideal platform for portable IoT sensor nodes, BLE beacons, and compact WiFi-connected projects.

## Where to Buy

- [LILYGO Official](https://openhardware.directory/r?to=https%3A%2F%2Flilygo.cc%2Fproducts%2Ft7-mini32-v1-5&ref=openhardware.directory&product=lilygo-t7-mini32-v1-5&source=md-export) — $7.44

## Resources

- [product](https://openhardware.directory/r?to=https%3A%2F%2Flilygo.cc%2Fproducts%2Ft7-mini32-v1-5&ref=openhardware.directory&product=lilygo-t7-mini32-v1-5&source=md-export)

## Tags

`esp32`, `mini32`, `psram`, `development-board`, `iot`, `arduino`, `micropython`, `wifi`, `bluetooth`

## Images

![LILYGO T7 Mini32 V1.5](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t7-mini32-v1-5/cecb3d0f2bd1.jpg)
![LILYGO T7 Mini32 V1.5](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t7-mini32-v1-5/f136e5e3b02c.jpg)
![LILYGO T7 Mini32 V1.5](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t7-mini32-v1-5/964b87257fc4.jpg)
![LILYGO T7 Mini32 V1.5](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t7-mini32-v1-5/ae1b4f540e13.jpg)
![LILYGO T7 Mini32 V1.5](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t7-mini32-v1-5/4fe11f69f86b.jpg)
![LILYGO T7 Mini32 V1.5](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t7-mini32-v1-5/aa3b8b166ea1.jpg)
![LILYGO T7 Mini32 V1.5](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t7-mini32-v1-5/f25b194a7149.jpg)
![LILYGO T7 Mini32 V1.5](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t7-mini32-v1-5/aa15f39401df.png)

> **Battery Powered:** Li-Po

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