Tag Archives: DHT22

Weather station based on ESP32 and MicroPython

In one of the previous posts I briefly described sending data to Google Sheets from a ESP32 board using MicroPython. As I mentioned earlier, the code is available on GitHub. Here are the main features:

  1. Measuring temperature and humidity with a DHT22 sensor.
  2. Sending data to a Google Sheet.
  3. Authentication via Google OAuth 2.0 service to get access to the sheet.
  4. Configuring the device via a web browser.

The Google Sheet doesn’t need to be publicly available on the Internet. The device doesn’t require any middleman such as PushingBox or IFTTT.

In this post, let’s focus a bit on technical details.

ESP32 board and DHT22 sensor
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MicroPython on ESP32: sending data to Google Sheets

On a wonderful weekend in summer time, instead of going out to a beach or somewhere else, I was staying at home and wondering if it’s possible to send data from an ESP board to a Google sheet using my favorite MicroPython. Let’s say it can send temperature and humidity measured by a DHT22 sensor. That’s how the project started.

(this post contains a brief description of the project, more technical details can be found in the next post)

ESP32 development board and DHT22 sensor: sending data to a Google sheet.
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Sending temperature and humidity to ThingSpeak with ESP8266 and MicroPython

MicroPython on ESP8266: sending data to ThingSpeak

When you play with new microcontroller, first thing you usually do is driving an LED. That’s a classic “Hello World!” project for microcontrollers. That’s what I did when I was playing first time with ESP8266 and MicroPython. Let’s move on, and implement another classic project – measuring temperature and humidity with DHT22 sensor. But we don’t want to be quiet, so we are going to share this so important data on the Internet. ThingSpeak will help us with it. Let’s add a new warrior to the army of Internet of Shit!

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