LILYGO T-A7670SA
The differences of the T-A76xx series can be referred to in SIM
Introduction
LILYGO T-A7670SA R2 is a 4G LTE Cat1 IoT communication module that supports GSM/GPRS/EDGE networks. It is specially designed for regions such as Australia, New Zealand, and South America, and is compatible with Nano SIM cards for cellular network access. The module offers multiple interfaces, including GPIO, ADC/DAC (for analog signal processing), I2C bus, and capacitive touch pins (e.g., TQUEH0â9). It supports low-power operation (Nano Power) and wide voltage input (DIR 25, POWER 4), allowing connection to sensors or controllers for remote data transmission. It is ideal for applications such as environmental monitoring, smart agriculture, and region-specific IoT deployment. Please note local frequency compatibility and ensure 3.3V logic level compliance.
Appearance and function introduction
Appearance

Pinmap

Module Information and Specifications
Description
Component | Description |
---|---|
MCU | ESP32-WROVER-E |
FLASH | 4MB |
PS RAM | 8MB |
Clock Frequency | 240MHz |
Wireless | Wi-Fi: 802.11 b/g/n; BLE V5.0 |
IO Expansion | 2.54mm spacing à 2*16 expansion IO interfaces + 1 à 4.4V~6.0V input interface |
Battery Capacity | 18650 model battery |
Storage | TF card |
Voice Call | Supports voice function |
Buttons | 1 x RST button + 1 x BOOT button + 1 Ã IO0 button |
USB | 1 Ã USB Port and OTG(Type-C) |
SIM | Supports 2G, 3G, 4G (Nano SIM) |
Power | 5V/500mA input |
Dimensions | 111x34x19mm |
Mounting Holes | 4 Ã 2mm positioning holes |
Wireless Communication Module | |
---|---|
MCU | A7670G |
Supported Regions | South America, New Zealand, Australia |
Dimensions | LCC+LGA,124Pin |
Size | 24*24*2.3mm |
Frequency Baud | LTE-FDD :B1/B2/B3/B4/B5/B7/B8/B28/B66 LTE-TDD :N/A GSM:850/900/1800/1900MHz, |
Power Consumption | LTE(Mbps) :10(DL)/5(UL) GPRS/EDGE(Kbps) :236.8(DL) / 236.8(UL) |
Data Transmission | LTE :3.8mA GSM :3.5mA |
Protocol Support | TCP/IP/IPV4/IPV6/DNS/Multi-PDP/FTP/FTPS/HTTP/HTTPS |
Optional Expansion | GNSS Bluetooth |
Certification | RoHS/CE(RED)/FCC/REACH/OCD(Anatel)/RCM |
â ī¸â ī¸â ī¸ optional without GPS version, GPS version contact customer service purchase.
Related Links
Github:T-A7670SA
Schematic Diagram
Dependency Libraries
- Adafruit_BusIO
- Adafruit-GFX-Library
- Adafruit_INA219
- Adafruit_NeoPixel
- Adafruit_SSD1306
- Adafruit_Sensor
- ArduinoHttpClient
- blynk
- BlynkNcpDriver
- DHT-sensor-library
- TinyGPSPlus
- SensorsLib
- StreamDebugger
- TinyGPSPlus
- TinyGSM-fork
Software Development
Arduino Setup Parameters
Setting | Value |
---|---|
Board | ESP32 Dev Module |
CPU Frequency | 240MHz (WiFi/BT) |
Core Debug Level | None |
Erase All Flash Before Sketch Upload | Disabled |
Events Run On | Core 1 |
Flash Frequency | 80MHz |
Flash Mode | QIO |
Flash Size | 4MB (32Mb) |
JATG Adapter | Disabled |
Arduino Runs On | Core 1 |
Partition Scheme | default 4MB with spiffs (1.2MB APP/1.5MB spiffs) |
PSRAM | ENabled |
Upload Speed | 921600 |