The prototype for the environmental sensor

A while ago i wrote about my endeavor of designing my own home Environment Sensor, with an array of interesting sensors (CO2, Temperature, Humidity, Barometric Pressure) and connected to my HomeAssistant instance - you can read more about it here.

However, this was meant to be pretty and to stand on my living room - where i also need a simple clock. So why not double down?

So my soldering iron gave birth to the mess below (soldering is a mess because i only later realized that the wire is PVC insulated and not temperature tolerant 🤦‍♂️)

The right photo is where the LCD stays. It's a simple breakout for an ILI9341 display.

From left to right, you have MH-Z19B CO2 sensor

  • MH-Z19B CO2 sensor
  • BH1750 Light Sensor
  • Bosch BME280 T/H/B pressure
  • Generic ESP32 dev board

Here's some quick sketch to print sensor values.

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Goal? Have LVGL running on it.

More on this later.