floraLynk mini v1.0 Electrical Circuit

This is the first version of the electrical circuit for the floraLynk mini v1.0. It shows how the different components are connected, including an ESP32, a DHT11, MQ-135, soil moisture & EC and pressure sensor.
floraLynk mini v1.0 Electrical Circuit

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floraLynk mini v1.0 delivers a practical and easy way to measure air and soil properties simultaneously

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floraLynk mini v1.0 open source hardware device for controlled environment agriculture floraLynk mini v1.0 is a solution to control the environment in a small greenhouse. The hardware and software can be used to control air temperature, humidity, light, soil moisture and electrical conductivity for optimal growing of plants. A unique feature is that the boards have built-in wifi connectivity so they can communicate with an app on your phone or tablet. floraLynk mini v1.0 is a fully open source, ESP32-based controller for the cultivation of plants. It has been specifically designed for both amateur and professional use in mind, with an aim to be as flexible as possible for many different applications. Specification Hardware ESP32 MCU floraLynk mini v1.0 Printed Circuit Board (PCB) Integrated sensors for measurement: Carbon dioxide (CO2) Light (lux) Air Temperature (T) Air Humidity (H) Air Pressure (P) Soil Temperature (ST) Soil Moisture (SM) Soil Electrical Conductivity (EC) Evaluatio...
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floraLynk mini v1.0 Hardware Bill of Materials (BOM)

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Id Designator Package Quantity Designation Installation 1 ESP32 Arduino with WIFI module 1 ESP32-DEVKITC-32D 2 x HEADER DS1023-1X20 2 LS1 Photoresistens 1 PGM5539-MP Direct 3 P1 Digital pressure sensor 1 ВМР180 Direct 4 DHT1 DHT11 – Digital sensor for for temperature and humidity 1 DHT11 Direct 5 CO2 MQ-135 – СО2 sensor 1 MQ-135 Direct 6 SM1 3D printed probe from stainless steel 1 Conn_01x02_Female Stereo jack 3.5mm 7 T1 10kΩ waterproof temperature probe NTC 3950 1 10kΩ Thermistor_NTC Stereo jack  3.5mm 8 R4 Resistance 0.25W 1 5Kohm Direct 9 R3,R2,R1 Resistance 0.25W 3 10Kohm Direct 10 PCB floraLynk mini v1.0 printed circuit board 1 floralynk mini v1.0 PCB Show electrical circuit
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MQ-135 Gas Sensor

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Carbon dioxide (CO2) is measured with MQ-135 gas sensor. MQ series of gas sensors utilize a small heater inside with an electrochemical sensor. These sensors are sensitive to a range of gasses witch are used at room temperature. MQ-135 is a basic digital/analog, low-cost gas sensor. The module have two output : analog and digital signals, microcontroller/ Arduino can read the sensor output signal and proceed with the data further. The main features are: Good sensitivity of harmful gases with wide range of concentration Long service life, low cost, simple driving circuit. High sensibility over ammonia gas, sulfide, benzene series vapor, also ideal for smoke and other harmful substance detection. Household air pollution alarm ndustrial air pollution controlle Portable air pollution detector Characteristics Signal output: digital/analog Standard circuit: Loop voltage Vc ≤24V  DC Heater voltage: VH 5.0V±0.2V AC or DC Load resistance: Adjustable RL Features of sensitive c...
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Unless otherwise specified floraLynk documentation is licensed under following licenses: Documentation Licensing: Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) Software Licensing: GNU General Public License (GPLv3) Hardware Licensing: CERN-OHL-S
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