Fully Automated Monotubs With ESP and Blynk Server. in Progress

Auto Monotub and colonizationtub

Hardwere You Have To Buy

Heatmat

Project With Co2 sensor

1x ESP Node MCU // WiFi Programable Board

1x SGP30 CO2 sensor with a CO2 range off 400 - 60000ppm

https://www.electrokit.com/produkt/luftkvalitetssensor-sgp30-monterad-pa-kort/

1x 80mm Fan //Dont use a PC fan for the Monotub

1x HW-279 // Relay

1x 12V Adapter 2 Ampere // Wall Wart

1x DS18B20 // Temperature sensor

1x DHT22 // Temperature and Humidity sensor

When some munchrooms are going to colonize they need a humidity between 70-90%. Good ventilation is nesesery, if the ventilation i to por contamination can easily uccur.

I usually use to open the box and smell inside. It should smell earthy with a touch of grainspawn.

If it smells stuffy just increase the ventilation in the box. I use a 80mm PC fan controlled with pwm from the ESP.

Is CO2 good for mushroom growth?

Most experts suggest CO2 levels between 10,000 - 20,000 ppm during the spawn run.

And no more than 1,000 ppm during the fruiting phase, preferably between 500 and 800ppm.

In addition, carbon dioxide monitoring is especially important during pinning. Mushrooms pin under high CO2 levels, then extend their stems to find oxygen. Too much CO2 as the pins grow results in "legging" or long stems, as the developing fruit pushes higher in the air to search for oxygen.

For example, early in pinning, most varieties of mushrooms require CO2 concentrations in the 1,200-1,500ppm CO2 range. This matches the higher than ambient air CO2 levels found in decaying matter on top of the soil surface.

If the pin reaches 1cm in height, its full body should be equal in diameter. If the cap is smaller than the body, this indicates that the CO2 concentrations are too high and "legging" is occurring. Conversely, if the stems are too short the pins may have been introduced to low levels of CO2 too soon in their growth cycle.

Use a CO2 meter with a ESP Nodemcu ?

SGP30 PPM-Range 400-60,000ppm

Link:https://www.electrokit.com/produkt/luftkvalitetssensor-sgp30-monterad-pa-kort/

If you dont calibrate the SGP30 it going to try to go back to 400ppm after a couple of minutes.

my tip is to first add the DHT22 sensor then take the "baseline value" shown in the picture abowe.

See the adafruit.pdf for more information about how to calibrate the CO2-sensor

Get a more accurate result: USE A DHT22

Add one Temperature and Humiditysensor to get more accurate Co2 Data !

i show how to set up blynk with virtuial pins in this video just folow

https://www.youtube.com/watch?v=ho-xuB7HFHY&t=12s

https://blynk.io/