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LILYGO T-A7670SA

T-A7670SA

The differences of the T-A76xx series can be referred to in SIM

1. 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., TQUEH0–9). 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.

2. Appearance and function introduction#

2.1. Appearance#

summary

2.2. Pinmap#

summary

3. Module Information and Specifications#

3.1. 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 × 2*16 expansion IO interfaces + 1 × 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 × IO0 button
USB 1 × USB Port and OTG(Type-C)
SIM Supports 2G, 3G, 4G (Nano SIM)
Power 5V/500mA input
Dimensions 111x34x19mm
Mounting Holes 4 × 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

⚠ī¸âš ī¸âš ī¸ optional without GPS version, GPS version contact customer service purchase.

Github:T-A7670SA

3.2.1. Schematic Diagram#

T-A7670SA

3.2.2. Dependency Libraries#

4. Software Development#

4.1. 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

4.2. Development Platforms#

  1. ESP-IDF
  2. Arduino IDE
  3. VS Code
  4. Platform IO

5. Product Technical Support#

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