The ESP32 and ESP8266 microcontroller series are built by the chinese company Espressif. The ESP32 microcontroller family consists of many flavors, i.e. microcontrollers (MC) of different generation with varying core types, number of cores, and capabilities.

These MCs are usually provided as modules, assembled small scale module PCBs (printed circuit boards) to be soldered on larger application specific PCBs with additional periferals such as USB interface, power supply, LEDs, etc.

The general hardware reference page is the main entry point for the complete hardware related documentation for all MCs and modules produced be Espressif.

Espressif ESP232 DevKitC user guide

Source: Espressif ESP232 DevKitC user guide

The ESP32-S3-DevKitC-1 is a general-purpose development board, based on ESP32-S3-WROOM-1, ESP32-S3-WROOM-1U, or ESP32-S3-WROOM-2. All ESP32-S3 pins are exposed to the board's pin headers. The mounted modules WROOM-1 and WROOM-2 differ in their memory sizes. The U-variant provides an antenna connector for an external antenna instead the integrated one.

The AMC SS2024 course utilizes the development kit variant ESP32-S3-DevKitC-1-N8R8. Specs:

• ESP32-S3 WROOM-1 module with integrated antenna
• 8 MB flash memory (for program code)
• 8 MB RAM (for variables during program execution)

Source: Espressif ESP232 DevKitC user guide

• https://docs.espressif.com/projects/esp-idf/en/latest/hw-reference/get-started-devkitc.html

Source: https://docs.espressif.com/projects/esp-idf/en/latest/hw-reference/modules-and-boards.html

ESP32 WROVER-B Datasheet

Source: https://www.instructables.com/id/The-Incredible-ESP32-Wrover-From-Espressif/

STILL MISSING!

Pinout diagram by RandomNerdTutorial

Source: https://randomnerdtutorials.com/esp32-pinout-reference-gpios/

RandomNerdTutorial also provides a informative list of WROOM-32 GPIO pins with descriptions with pins are free to use.

Source: https://randomnerdtutorials.com/esp32-touch-wake-up-deep-sleep/

• ESP8266 to MySQL: https://randomnerdtutorials.com/esp32-esp8266-mysql-database-php/
• ESP32 both I2C: https://www.az-delivery.de/blogs/azdelivery-blog-fur-arduino-und-raspberry-pi/esp32-beide-i-c-schnittstellen-verwenden

Used as reference implementation for WROVER integration.

Source: https://github.com/Xinyuan-LilyGO/TTGO-T-Call|

• Issues on Github Repo: https://github.com/Xinyuan-LilyGO/TTGO-T-Call/issues/13

• Instructables: https://randomnerdtutorials.com/esp32-sim800l-publish-data-to-cloud/

Source: https://nettigo.eu/products/sim800l-gsm-grps-module

Andreas Spiess:

• #155 The 5 Best Solar ChargerBoards for Arduino and ESP8266
• #160 40 Cent Do-It-Yourself Li-Ion Protectors for 18650 Cells (Tutorial) and how they work

Source: https://www.14core.com/wiring-bootloading-and-flashing-the-espressif-esp32-wrover/

• Deep Sleep, Arduino: https://randomnerdtutorials.com/esp32-deep-sleep-arduino-ide-wake-up-sources/
• ESP 32 + SIM800L, Arduino: https://randomnerdtutorials.com/esp32-sim800l-publish-data-to-cloud/

• https://arduino-hannover.de/2018/07/25/die-tuecken-der-esp32-stromversorgung/

• TTGO T-Call:
  https://github.com/Xinyuan-LilyGO/TTGO-T-Call
• S8089 DC/DC:
  https://de.aliexpress.com/item/32734295454.html
• IP5206, Battery Management:
  https://lcsc.com/product-detail/PMIC-Battery-Management_IP5206_C181697.html