Table of Contents
At my work we ferment a lot of milk making either yoghurt or cheese. This involves expensive equipment, often only pH is meassured untill a given piont where the process is stopped. This is an attepmt to make a cheep alternative based on an arduino which also measures gasses and provide a realtime interface using thingspeak channelid 96629.
- Serial interactive menus
- Callibration og pH probe and gas sensors
- Serial repporting
- Logging in realtime to thingspeak
- Arduino Uno
- Liquid PH Value Sensor with BNC Electrode Probe
- Selection of gas sensors (I used 4 from a kit with cheep MQ-sensors)
- MQ4 for alcohol
- MQ7 for carbonmonooxide
- MQ8 for hydrogene
- MQ135 for ammonia
- Waterproof Plastic Electronic Project Box Enclosure Case 100×68×50MM (ebay)
- Optional a raspberry pi for online monitoring and logging
Drill holes in the project box for gas sensors and BNC. Wireing is a lot simpler than it looks, ground and 5v is wired to all the sensors (blue and brown) then each sensors analog outputis connected to an analog pin on the arduino.
