2 layers116.8 × 30 mm
Type d
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
14 parts3kApache-2.0
2 layers100 × 95.5 mm
BIO SYMBIOT
Dev3885/BIO-SYMBIOT1A system for microclimate stabalisation and human-flora symbiosis
- Size
- 100 × 95.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 14
- Nets
- 34
- Pads
- 72
- Tracks, vias
- 108, 0
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 20 Jul 2026
- Updated
- 20 Jul 2026
Overview
BIO SYMBIOT is an open-source printed circuit board by Dev3885, from the Dev3885/BIO-SYMBIOT repository on GitHub, published under the MIT licence. It is a 2-layer board of 100 × 95.5 mm with 14 parts on 34 nets, routed with 108 tracks and 0 vias.
Its parts include 9 connectors, 2 capacitors, 1 IC and 1 diode. It belongs with the ESP8266 boards of this library.
README
README.mdBIO SYMBIOT
Bio-Resonant IoT Framework for Precision Microclimate Stabilization and Human-Plant Symbiosis
An advanced IoT system that monitors and optimizes plant microclimates while mathematically quantifying the symbiotic relationship between tree biological resonance and human limbic well-being in a shared environment for regulation of the same towards overall health and tranquility.
Abstract
Inspired by research into plant communication networks, this project treats flora as an active, measurable node in a shared microclimate. We have built a mathematical proxy layer on top of real sensor data to test whether plant-state and human-comfort signals move together in a meaningful and mathematically honest way, proving that plants and humans react similarly in a given microclimate. And the results are amazing, we've achieved a 89.23% of correlation between the plant's health and human limbic profile, when subjected to the exact same environment, with an alignment rate of 0.796; which means that there is a 80% chance of predicting one variable, given the other variable. Next the project goes onto make use of this data to create a empathetic relationship between trees and humans. We have done that through actuation.
The system validates a novel dual-bridge asymmetric weighting model for bio-symbiosis research, inspired by Peter Wohlleben’s The Hidden Life of Trees.
Key Features
- Real-time Autonomous Irrigation with manual override + 1-minute auto-timeout
- Multi-sensor Microclimate Monitoring (Soil Moisture, Ambient Light, Air Quality)
- Local + Cloud Telemetry (OLED display + Blynk IoT)
- Advanced Noise Suppression using FFT in MATLAB
- Bio-Symbiosis Analytics with Pearson correlation & linear regression (R² = 0.7962)
- Robust Hardware Design with optocoupler isolation, flyback diode, and star-ground topology
- Professional PCB designed in KiCad
Tech Stack
Hardware
- Microcontroller: NodeMCU ESP8266
- Sensors: Capacitive Soil Moisture, BH1750 (Light), MQ-135 (Air Quality)
- Display: SSD1306 OLED (I2C)
- Actuators: 5V Relay + DC Water Pump
- PCB: Custom design in KiCad
Software
- Firmware: Arduino (C++) with Blynk, non-blocking FSM
- Analytics: MATLAB (Serial parsing, FFT, regression, Shannon Entropy)
- EDA: KiCad
Results
- Human-Tree Resonance Correlation: 89.23%
- Predictive Model R²: 0.7962
- System Stability Score (Shannon Entropy): 27.94%
- Successfully suppressed EMI and voltage sag issues
- Demonstrated clear asymmetric divergence validating the dual-bridge proxy model
Project Structure
Parts
14| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | 0.1µF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C1 |
| 1 | 100µF | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C2 |
| 1 | 1N4007 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1 |
| 1 | 5V Motor | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | M1 |
| 1 | 5V Power Input | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J4 |
| 1 | BH1750_LIGHT | Connector:FanPinHeader_1x04_P2.54mm_Vertical | J6 |
| 1 | MQ135 Gas Sensor | Connector:FanPinHeader_1x04_P2.54mm_Vertical | J5 |
| 1 | NodeMCU1.0(ESP-12E) | Custom_Components:NodeMCU_LoLin_V3_Custom | U1 |
| 1 | Relay_Switch_Pins | TerminalBlock:TerminalBlock_bornier-3_P5.08mm | J8 |
| 1 | Rellay Module | Connector:FanPinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | SSD1306 OLED | Connector:FanPinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | Screw_Terminal_01x05 | TerminalBlock:TerminalBlock_bornier-5_P5.08mm | J7 |
| 1 | Soil Moisture Sensor | Connector:FanPinHeader_1x03_P2.54mm_Vertical | J1 |
| 1 | TTP223 Touch Switch Module | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J9 |
Questions
How big is the BIO SYMBIOT PCB?
It measures 100 × 95.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the BIO SYMBIOT use?
14 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the BIO SYMBIOT KiCad files?
From the Dev3885/BIO-SYMBIOT repository on GitHub, at the commit this page was made from: the board is BIO-SYMBIOT.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the BIO SYMBIOT design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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