ESP32/ESP8266

Problem handling

If Uploading programm not working, check Permissions on Port

sudo chmod 666 /dev/ttyUSB0

Setup

Download Arduino

sudo apt install arduino

Install Board in Arduino

In Arduino go to Files -> Preferences and insert

ESP8266: http://arduino.esp8266.com/stable/package_esp8266com_index.json

ESP32: https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json

Note

Multiple Entries can be seperated by a comma (,)

Go to Tools > Board > Boards Manager and install the board libraries.

ESP32

Pinout

G<pin_number> on the board is the Number used in the code

Note

#define DHTPIN 23 // Digital pin connected to the DHT sensor

Note

For NMCU-ESP32 select ESP32 Dev Board in Arduino

Pinout PoE-Version

Note

To flash data to the module, GPIO0 has to be pulled to Ground (connect GPIO0 and GND with a wire).

Note

As the Board select ESP32 Arduino -> OLIMEX ESP32-PoE-ISO

ESP8266

Pinout

G<pin_number> on the board is the Number used in the code

Note

#define DHTPIN 23 // Digital pin connected to the DHT sensor

Note

For ESP8266MOD 12-F select NodeMCU 1.0 in Arduino

DHT22

Frontview (Left to Right):

1. Current (3,3 or 5V)

2. Data

3. Not connected

4. Ground

Grove - Capacitive Moisture Sensor

Helpfull Libraries

• https://espressif-docs.readthedocs-hosted.com/projects/arduino-esp32/en/latest/api/preferences.html