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LILYGO has developed another ESP32 board with a 4G LTE modem: models LILYGO T-A7608E-H and T-A7608SA-H with SIMCom A7608SA-H (for South America, New Zealand and Australia) and SIMCom A7608E-H (for South America, New Zealand and Australia). (America, New Zealand and Australia) respectively. Available in South America, New Zealand and Australia). The EMEA, South Korea and Thailand markets offer download speeds of up to 150 Mbps and upload speeds of up to 50 Mbps.
The board also supports GPS, includes an 18650 battery holder, and has I/O expansion headers to support additional RS485 and CANbus interface boards, similar to the company’s earlier T-CAN485 board with ESP32, but without cellular connectivity. . .
The board comes with an LTE antenna, a GPS antenna, a 2-wire cable with a JST connector for an external battery, and two pin headers. LILYGO provides documentation and code examples for Arduino and PlatformIO using the TinyGSM library on Github.
As mentioned in the introduction, they also made additional T-SimHat RS485, CAN bus and 5V relay boards for mini PCIe cards for the ESP32 4G LTE board mentioned in this article, as well as an early TTGO-T-PCIe board using the SIMCom SIM7000 .
The LILYGO T-A7608E-H/T-A7608SA-H board can be purchased on Aliexpress or Banggood for around $45, while the T-SimHAT expansion board is currently selling for $13.58.
Jean-Luc founded CNX Software in 2010 part-time, quit his job as a software development manager and later began writing daily news and reviews full-time in 2011.
The modem is connected to the esp32 via serial UART without flow control. If this were the case, the physical interface would not be able to exceed 5 Mbps. No need to worry about channel saturation at 150 Mbps.
Does anyone know why people prefer the emea modem over another modem with all the same features and even more bands? It’s interesting that in the EMEA region there isn’t even a B28, but in another there is…
I think not, or only VoIP calls. If you plan to use it for video calls, this may not be a good idea since the video resolution and/or frame rate will be quite low.
I have this board, I have made some progress and when connected to a USB cable the project works perfectly. However, when I try to use just the battery, the code runs but the modem does not turn on. The problem I’m having is not enough current… Does anyone know if there is anything I can do to make the modem run out of battery?
Post time: Jan-16-2024