# LILYGO T-Weigh

> ESP32 development board combining 4-channel HX711 load cell amplifiers with LoRa SX1262 radio (868/915 MHz) for wireless weight measurement and IoT scale applications over long-range LoRa networks.

## Quick Facts

- **Brand:** LILYGO
- **Board Type:** ESP32
- **Price:** ~$20.88
- **Product Readiness:** developer
- **CPU:** ESP32
- **CPU Architecture:** Xtensa LX6
- **RAM:** 520KB SRAM
- **Flash:** 4MB
- **Power:** 5-12V DC
- **Operating Voltage:** 3.3V

## Connectivity

- **Wifi:** 802.11 b/g/n
- **Bluetooth:** BLE 4.2
- **Lora:** 868/915 MHz

## Open Source

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

## Compatible Firmware

arduino, esp-idf

## Use Cases

- weight-monitoring
- industrial-iot
- remote-sensor-nodes
- smart-agriculture

## Components

- **ESP32** (mcu): Dual-core 240MHz Xtensa LX6 with integrated WiFi and BLE 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-t-weigh&source=md-export)
- **HX711** (adc): 24-bit analog-to-digital converter for precision weight measurement with 4-channel load cell support — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.digikey.com%2Fen%2Fproducts%2Fdetail%2Favia-semiconductor-xiamen%2FHX711%2F7350216&ref=openhardware.directory&product=lilygo-t-weigh&source=md-export)
- **SX1262** (radio): LoRa/FSK sub-GHz transceiver with up to +22 dBm PA, -148 dBm sensitivity, supporting EU868 and US915 bands — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.semtech.com%2Fproducts%2Fwireless-rf%2Flora-connect%2Fsx1262&ref=openhardware.directory&product=lilygo-t-weigh&source=md-export)

## Protocols

- **UART**
- **SPI**
- **I2C**
- **SDIO**

## Available Software

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

## Description

## Overview

The LILYGO T-Weigh pairs an ESP32 microcontroller with four HX711 24-bit analog-to-digital converters for precision load cell measurement alongside an SX1262 LoRa transceiver supporting EU868 and US915 frequency bands. This combination enables wireless scale systems that can transmit weight data over LoRa distances of several kilometers. The SX1262 delivers up to +22 dBm output power, sensitivity down to -148 dBm, and supports FSK, GFSK, MSK, GMSK, LoRa, and OOK modulations. The board runs on 4MB flash with WiFi 802.11 b/g/n and BLE 4.2 for local connectivity. Programming requires the T-U2T USB-to-TTL programmer. Available in 868 MHz (EU) and 915 MHz (US) variants.

## Where to Buy

- [LILYGO Official](https://openhardware.directory/r?to=https%3A%2F%2Flilygo.cc%2Fproducts%2Ft-weigh&ref=openhardware.directory&product=lilygo-t-weigh&source=md-export) — $20.88

## Resources

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

## Tags

`esp32`, `lora`, `hx711`, `load-cell`, `weight-sensor`, `iot-scale`

## Images

![LILYGO T-Weigh](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-weigh/d9231a14ecd3.jpg)
![LILYGO T-Weigh](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-weigh/171d69e8d8ea.jpg)
![LILYGO T-Weigh](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-weigh/80084d432333.jpg)
![LILYGO T-Weigh](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-weigh/b663892fb7c1.jpg)
![LILYGO T-Weigh](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-weigh/78ac1eb06233.jpg)
![LILYGO T-Weigh](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-weigh/6cd8f6f9a452.jpg)
![LILYGO T-Weigh](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-t-weigh/aa15f39401df.png)

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