Reviews Esp32 Module

Adafruit (PID 3591) HUZZAH32 – ESP32 Feather Board (pre-soldered)

Module is nestled in at the end of this Feather contains a dual-core ESP32 chip.
ESP32 has way more GPIO than the ESP8266.
Recommended for makers who have some experience with microcontroller programming..

Package contains: you will get 3 pieces of ESP-32 2.4GHz dual-mode WiFi development boards, enough for your daily use and replacement.
Multiple functions: ESP32 development board integrates antenna switches, RF balun, power amplifiers, low noise amplifiers, filters and power management modules.
And the entire solution occupies the smallest printed circuit board area.
ESP-32 development board is safe, reliable and scalable to various applications, bringing you a lot of convenience.
Small size: ESP-32 dual-mode module is compact and easy to embed into your device, convenient to use.
Low power consumption: the development board uses 2.4GHz dual-mode Wi-Fi, chip ESP-WROOM-32, and 40nm low power consumption technology.

ESP32-WROOM-32D are powerful, generic Wi-Fi+BT+BLE MCU modules that target a wide variety of applications, ranging from low-power sensor networks to the most demanding tasks, such as voice encoding, music streaming and MP3 decoding..
The sleep current of the ESP32 chip is less than 5 µA, making it suitable for battery powered and wearable electronics applications..
ESP32-WROOM-32D integrate a 4 MB of external SPI flash. The integrated SPI flash is connected to GPIO6, GPIO7, GPIO8, GPIO9, GPIO10 and GPIO11. These six pins cannot be used as regular GPIOs..
Flash integrated on the module and are not recommended for other uses..

ESP32-CAM WiFi + Bluetooth Module WiFi ESP32 CAM Development Board with Camera Module OV2640 2MPcompatible for Arduino, Support Image WiFi Upload and TF Card.
Bluetooth: Bluetooth 4.2 BR/EDR and BLE standard.
Camera WiFi + Bluetooth Module 4M PSRAM Dual-core 32-bit CPU Development Board with OV2640 2MP Camera Module + FT232RL FTDI USB to TTL Serial Converter + 20 pin Jumper Wire.
FTDI USB Serial Adapter comes with the FT232RL chip and uses both 3.3V and 5V operating voltage. Adapter Logic-level can be set via jumpers on the board, which makes simple to connect to your controller. USB power has over current protection, using 500MA self-restore fuse..
This module supports interfaces such as UART / SPI / I2C / PWM / ADC / DAC.

... biggest & most advanced starter kit for Arduino. 65+ pieces w/ FIVE main boards: 100% Arduino-compatible Uno R3, Mega 2560, Nano V3, ESP32 WiFi+Bluetooth and ESP8266 NodeMCU development platforms.
Explore programming electronics with all of the most common sensors and modules in Arduino like RFID Card-Key Reader, Ultrasonic Sensor, Real Time Clock, Impact Switch, 3-Axis Accelerometer, LCD, Relay, Servo and Stepper Motor - suitable for beginner or advanced users.
Build wireless IoT Automation projects with ESP32 Development Board, HC-05 Bluetooth Module, ESP8266 Wi-Fi Module, 2x NRF24L01 Wireless Transceivers and the W5100 Ethernet Shield.
All-in-one bundle with extra accessories + 16G USB storage with free access to the GAR Dropbox Cloud including PDF guides & links to tutorials and videos to help you learn to program all the parts and get started quickly.
Effective technical/customer support from USA with lifetime replacement guarantee on all parts – The Monster comes in 16" x 12" durable organizer tool box for safe transport and storage. No soldering req....

SIM800L GPRS GSM module micro SIM core board quad-band TTL serial port is ESP8266 ESP32.

There is the way to guide you to use the new version: The command you needed to use is: esptool.py --baud 115200 --port /dev/tty.SLAB_USBtoUART write_flash -fs 32m -ff 80m --flash_mode dio 0x00000 boot_v1.7.bin 0x1000 user1.bin 0x37c000 esp_init_data_default.bin 0x37e000 blank.bin The important part is “—flash mode dio”.
ESP8266 CP2102 NodeMCU LUA ESP-12F WIFI Serial Wireless Module.
Compatible with Arduino, works great with the latest Compatible with Arduino IDE/Mongoose IoT/Micropython.
SP8266 is a highly integrated chip designed for the needs of a new connected world. It offers a complete and self-contained Wi-Fi networking solution, allowing it to either host the application or to offload all Wi-Fi networking functions from another application processor..
5pcs ESP8266 CP2102 NodeMCU LUA ESP-12F WIFI Serial Wireless Module.

What will you get: there are 5 pieces OLED display module with classic display color, self-illuminated and no need backlight.
Power-saving display: the I2C oled display performs better than the traditional LCD display and with lower consumption the IIC (I2C communications)....
More details: use compatible with Arduino, ESP8266, ESP32, STM32, etc..
Good compatibility: this i2c oled display module is compatible with Raspberry Pi 4B/3B+/3B/2B/Zero, compatible with Arduino, also compatible with....
Product manual: as shown in the instructions.

There is the way to guide you to use the new version: The command you needed to use is: esptool.py --baud 115200 --port /dev/tty.SLAB_USBtoUART write_flash -fs 32m -ff 80m --flash_mode dio 0x00000 boot_v1.7.bin 0x1000 user1.bin 0x37c000 esp_init_data_default.bin 0x37e000 blank.bin The important part is “—flash mode dio”.
ESP8266 CP2102 NodeMCU LUA ESP-12E WIFI Serial Wireless Module.
Compatible with Arduino, works great with the latest Compatible with Arduino IDE/Mongoose IoT/Micropython.
SP8266 is a highly integrated chip designed for the needs of a new connected world. It offers a complete and self-contained Wi-Fi networking solution, allowing it to either host the application or to offload all Wi-Fi networking functions from another application processor..
5pcs ESP8266 CP2102 NodeMCU LUA ESP-12E WIFI Serial Wireless Module.