arduino-playground

Collection of Arduino projects, sketches, ideas, and experiments, together with few infrastructure components, such as databases, and dashboards.

These won't relly on Firebase, Blynk, etc. but on open-source self-hosted components, such as influxdb, grafana, etc. either running in cloud, or locally.

Arduino UNO R3 Board

TODOS

• Add list of projects

1.1 Starter Kit Projects

2. NodeMCU ESP8266 Board

2.2. ESP8266 Web Server

2.2. ESP8266 with a DHT11 Sensor

Sketch:

src/nodemcu-esp8266-humidity-sensor.ino    

Infrastructure: influxdb

infrastructure/influxdb/docker-compose.yml

Sample ino sketch for NodeMCU (ESP8266) board, for reading temperature and humidity from a DHT11 sensor.

It will connect to wifi, and send the read sensor values to an influxdb running locally (on my laptop) within a docker container, exposed on port 8086, within the same network.

What you'll need:

• docker
• docker-compose
• NodeMCU board
• DHT11 sensor
• Arduino IDE libraries
  • DHT sensor library lib 1.3.4 by Adafruit
  • Adafruit Unified Sensor lib 1.0.3 by Adafruit

How it looks:

TODOS

• Connect DHT11 sensor to NodeMCU board

• Connect NodeMCU to wifi

• Read sensor values

• Send sensor values to influxdb

• Create influxdb dashboard with humidity and temperature values

• Add guide how to run influxdb locally

• Add rest of prerequisites to the above list

• Detailed steps for setting up everything and running it