Which board should be selected for Arduino IDE

[adriaandotcom]

What board needs to be selected for LILYGO® TTGO T-SIM-A7670E?

I followed these instructions to get a list of ESP32 boards:

Getting this error with ESP32 Dev Module:

Arduino: 1.8.16 (Mac OS X), Board: "ESP32 Dev Module, Disabled, Default 4MB with spiffs (1.2MB APP/1.5MB SPIFFS), 240MHz (WiFi/BT), QIO, 80MHz, 4MB (32Mb), 921600, None"

Sketch uses 261370 bytes (19%) of program storage space. Maximum is 1310720 bytes.
Global variables use 14008 bytes (4%) of dynamic memory, leaving 313672 bytes for local variables. Maximum is 327680 bytes.
esptool.py v3.0-dev
Serial port /dev/cu.usbmodem52D50070651
Connecting.......
Chip is ESP32-D0WD (revision 1)
Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
Crystal is 40MHz
MAC: ***
Uploading stub...

A fatal error occurred: Failed to write to target RAM (result was 01070000)
A fatal error occurred: Failed to write to target RAM (result was 01070000)

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

[adriaandotcom]

I found this great comment that helped us getting started:

I just received this MacOS Big Sur driver for the CH9102F chipset on the TTGO T-Call 1.4 from it's vendor.

I can hereby confirm this driver to be working! (Big Sur 11.5.2)

Note 1: You need to click through some Chinese screens Note 2: You need to select to correct device You will see:

1. /dev/cu.usbmodemXXXXXXXX
2. /dev/cu.wchusbserialXXXXXXXX

Make sure to choose the second option!

CH9102_Mac_Driver.zip

Install that diver, allow in you System Preferences. When success it shows something like this with the text 串口驱动安装成功 (driver installed succesfully):

Select ESP32 Dev Module board in Arduino IDE:

Select serial port in Arduino IDE: