I just HAD to have this LilyGo TTGO ESP32 Board with Ethernet and SIM Connector for one main reason – I’ve used hundreds of ESP8266 and ESP32 boards but never EVER seen an ESP32 with an Ethernet connector before.
So, I opened up the package, plugged the board into an Ethernet lead hooked into my network and applied USB-C power – and LO – a new device appeared on the network – esp32-ethernet.lan (.lan is my suffix set in the router – others may have a different suffix).
At this point I’m not sure what to do with the board as it appears to have no pre-programmed web interface but I’m sure it will come to me. It does however have a sequencing serial RGB (ES2812) LED on-board.
There is a stock program running of some sort already and clearly the hardwired Ethernet connection works, bringing the board into my network. I just need to find out more. Hopefully the two photos here will help put the pieces together.
You can clearly see on the underside, sockets for both a SIM and a micro-USB.
The board has RESET and BOT buttons – short for BOOT (I’m assuming the latter is the normal programming button) and as well as the USB-C connector, the board can also handle 5-12v input on a green 2-pin connector. Also included are a 6-way 0.1″ header pin set and 2 small bolts.
The board is branded LILYGO and is marked 32+LAN+PCIE XY_21_12_28 V1.1
The sheet which comes with the board has pin designations and not a lot else. The ESP32-WROVER-E has 16MB FLASH, 8MB PSRAM and there is of course the usual ESP32 WiFi and Bluetooth connectivity available.
According to Banggood’s website the board can be used as a router – presumably a 4G router hence the SIM connector and the site shows an example mobile router interface, albeit in Chinese – available software and information will, as always, make or break this inexpensive (around 17 Euros until March 31, 2022) product.
There is no shortage of hardware information about this ESP32 board on Banggood’s site – but I struggled to find anything about the firmware – I’ll continue looking. Lilygo do a massive range of ESP8266 and ESP32-based boards… so off I went to the lilygo.cn site in search of this one…. erm… no.
Amazon have this board on their site (none available and no info) as do AliExpress (available but no info). There are less-well-known online stores with this product but they, too seem to have a complete lack of information other than that supplied by Banggood.
I DID find this link from the Banggood site to a Github project but it is of limited use as it stands.
If and when when I figure out what to do with this, you will be the first to know 🙂