LilyGO TTGO T-SIM-A7670E R2 ESP32 - ESP32-WROVER - with 18650 battery holder

With its USB-C connection for programming and an integrated 18650 battery holder, it's ready to be a part of various projects. Its extensive communication interfaces allow it to connect and control a wide range of peripherals, making it adaptable to many different applications.

In the wireless domain, it's a standout performer, supporting different GNSS systems, Wi-Fi, Bluetooth, and even 2G and 4G LTE CAT 1 telecom networks. This makes it a prime choice for IoT applications and remote data transmission.

Its battery circuit is crafted to support Li-ion and Li-Po batteries, with built-in protections that ensure safe and efficient power management.

Key Features

Power & Electrical Characteristics

• Supply Voltage: 4.4V to 6V DC
• IO Pin Voltage: 3.3V
• Max IO Pin Source Current: 20mA
• Max IO Pin Sink Current: 28mA
• Chip Series: ESP32
• Clock Frequency: 240MHz
• Cores: 2

Internal Memory

• SRAM: 520KB
• PSRAM: 8MB
• Flash Memory: 4MB
• EEPROM Type: Emulated

Communication Interfaces

• Hardware Interfaces: I2C, I2S, SPI, UART, PWM, ADC, DAC, GPIO, USB CDC
• IO Pins: 24
• Available Hardware Interfaces: 8 PWM channels, 16 ADC pins, 2 DAC pins, 3 UART interfaces, 2 I2C interfaces, 2 SPI interfaces
• USB to Serial Converter: CH9102F
• Supported SD Card Format: Micro SD
• Supported SIM Card Format: Nano-SIM

Wireless Communication

• Interfaces: GNSS, Wi-Fi, Bluetooth, Telecom
• Wi-Fi & Bluetooth Chip: ESP32
• Wi-Fi Frequency: 2.4GHz
• Bluetooth Version: 4.2 (LE, Classic)
• GNSS Chip: A7670E (GPS, Beidou, GLONASS)
• Max GNSS Accuracy: 2.5m
• Max GNSS Update Rate: 10Hz
• Telecom Chip: A7670E (2G, 4G LTE CAT 1)
• Supported Bands: 900MHz, 1800MHz, B1, B3, B5, B7, B8, B20

Battery Circuit

• Battery Chip: CN3065
• Supported Battery Types: Li-ion, Li-Po
• Max Charging Voltage: 4.2V
• Max Charging Current: 600mA
• Protection Features: Overvoltage, Overcurrent, Polarity, Undervoltage
• Battery Holder: 18650 (Button top, Flat top), 1 battery

Connectors

• Power Connectors: JST-PH male, Through hole solder pin(s) (2.54mm), USB-C female
• IO Connectors: Through hole solder pin(s) (2.54mm), USB-C female
• Antenna Connectors: Built-in antenna, IPEX/uFL male (Wi-Fi/Bluetooth, GNSS, Telecom)

Package Contents

• 1x T-SIM-A7670E
• 1x LTE antenna
• 1x GPS antenna
• 1x JST-PH female cable
• 2x Male pinheader 16p

The LILYGO® TTGO T-SIM-A7670E R2 comes with a USB-C connection for programming (USB-C cable not included) and an integrated 18650 battery holder (battery not included). It's a feature-rich development board that offers a plethora of functionalities, making it suitable for various applications and projects.