LILYGO T-SIM7670G-S3 ESP32-S3 4G LTE Wireless Cellular IOT Devices Low-Power Long-Range Communication with GPS TTGO Development Board

About this item MCU : ESP32-S3 Wireless Connectivity : 2.4 GHz Wi-Fi (802.11 b/g/n) , Bluetooth 5 (LE) Peripheral Interfaces : I2C、SPI、UART、SDIO、I2S、CAN More Information：github.com/Xinyuan-LilyGO/LilyGO-T-A76XX If you have any questions or suggestions about the product, please feel free to contact us. We will answer your question as soon as possible Product Description Product Parameter When opening the Arduino IDE, you will be prompted that there are new libraries that can be updated. Please do not click update. Updates don’t always compile, run, etc.. Make sure that the board is running normally before deciding whether to update. You have to Know that problems may occur after updating due to library differences, or the default configuration (such as TinyGSM) will be overwritten. If it runs abnormally after the update, please follow Article 4 of the Arduino Quick Start to delete the directory in libraries, and drag the folder in lib into the libraries directory again. More Information：github.com/Xinyuan-LilyGO/LilyGO-T-A76XX FAQ Can’t turn on the phone after connecting the battery for the first time?This is due to the characteristics of the onboard battery over-discharge and over-charge chip. It cannot be turned on when the battery is connected for the first time. This can be solved by inserting a USB charger or reconnecting the battery. For details, please see the remarks on page 4 of the datasheet. Can’t upload any sketch，Please enter the upload mode manually.Connect the board via the USB cable Press and hold the BOOT button , While still pressing the BOOT button (If there is no BOOT button, you need to use wires to connect GND and IO0 together.) Press RST button Release the RST button Release the BOOT button (If there is no BOOT button, disconnect IO0 from GND.) Upload sketch How do I connect the antenna correctly? Check the silk screen on the board. GPS stands for GPS antenna. Only active GPS antenna can be connected here. SIM or MAIN, this is the main antenna interface of LTE AUX This is the diversity antenna for LTE, used to enhance the signal Network registration denied ? When the network registration is refused, please check whether the APN is set correctly. For details, please refer to issues104 PIN MAP FAQ Solar input voltage range? 4.4 ~ 6V , As long as the voltage matches, the solar panel power is not limited Can’t get location?Please write the compiled firmware for testing. Please see here for details. How to use voice call example?Voice calls require external welding of the condenser microphone and speaker. Generally, the board silk screen is marked SPK. The speaker needs to be welded, and the MIC silk screen position needs to weld the condenser microphone. SIM767XG sendSMS and VoiceCall? Although the manual of SIM767XG states that it has the functions of making voice calls and sending text messages, the current firmware does not support it. Unable to detect SIMCard? All SIM series need to insert the SIMCard into the board first and then power on to detect the SIM card. If the order is reversed, it will report that the SIMCard cannot be detected. How to release the limitations of ESP32-WROVER-E GPIO12 ? Since the ESP32-WROVER-E module is used, the internal flash voltage of the module is 3.3V by default. IO12 controls the startup flash startup voltage. If the external device connected to IO12 defaults to the HIGH level, then the startup will fall into an infinite restart. , Two solutions, Replace the IO port and connect the default low-level device to IO12 Use espefuse to forcefully set the flash voltage to 3.3V. For details, please refer here, this can only be set once, and cannot be set incorrectly. If the setting is incorrect, the module will never start. 1 X T-A7670G-S3 1 X LTE antenna 1 X PH2.0 battery cable 1 X GPS Antenna 2 X Pin(16Pin) Product information Technical Details Collapse all Summary Wireless Type ‎Bluetooth Other Technical Details Brand ‎LILYGO Series ‎LILYGO T-SIM7670G-S3 ESP32-S3 4G LTE Wireless Module Cellular IOT Devices Low-power Long-range Communication With GPS TTGO Development Board Operating System ‎FreeRTOS Processor Brand ‎Espressif Number of Processors ‎1 Manufacturer ‎LILYGO ASIN ‎B0D6K75W57 Country of Origin ‎China Date First Available ‎June 8, 2024 Additional Information Customer Reviews 4.0 4.0 out of 5 stars 1 rating 4.0 out of 5 stars Best Sellers Rank #6,489 in Single Board Computers (Computers & Accessories) Warranty & Support Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is “dead on arrival,” arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. 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