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ESP32 board with 150Mbps 4G LTE modem also supports RS485, CAN Bus, and relay expansion

Jun 21, 2023Jun 21, 2023

LILYGO has designed another ESP32 board with a 4G LTE modem with the LILYGO T-A7608E-H & T-A7608SA-H variants equipped with respectively SIMCom A7608SA-H for South America, New Zealand, and Australia, and SIMCom A7608E-H for the EMEA, South Korean, and Thai markets, both delivering up to 150 Mbps download and 50 Mbps upload speeds.

The board also supports GPS, includes a 18650 battery holder, and features I/O expansion headers that support an add-on board with RS485 and CAN bus interfaces, in a way similar to the company's earlier TTGO T-CAN485 board with ESP32, but no cellular connectivity.

LILYGO T-A7068E-H/T-A7608SA-H board specifications:

The board ships with one LTE antenna, one GPS antenna, a 2-wire cable with a JST connector for an external battery, and two pin headers. LILYGO provides documentation and code samples for Arduino and PlatformIO using the TinyGSM library on Github.

As noted in the introduction, they also made the T-SimHat RS485, CAN Bus, and 5V relay add-on board for both the ESP32 4G LTE board mentioned in this article, and the earlier TTGO-T-PCIe board that takes SIMCom SIM7000 mini PCIe cards instead.

LILYGO T-A7608E-H / T-A7608SA-H board can be purchased for about $45 on Aliexpress or Banggood, while the T-SimHAT expansion board is currently sold for $13.58.

Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.

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$45 on Aliexpress Banggood sold for $13.58