Spring Wind Sensor Idea
6
Use soft spring fixed on base
Add lightweight round object on top
Wind pushes object from all directions
ESP32-CAM capt...
Ultrasonic Anemometer Notes
What I Want
Build low-cost ultrasonic wind speed + direction sensor using ESP32 DevKit V1.
Main Parts Needed
ESP32...
use plastic as frame and foil(metal) for antenna
📒 Deepak – Simple Field Notes (LoRa + STM32)
📡 Dipole Antenna
Frequency: 433–434 MHz
Length: 34.5 cm + 34.5 cm
Type: Half-wave dipole
T...
Final node uses HK32 + HC-12 with BMP280 & SHT31 sensors; cost optimized, TX-only design allows savings to be invested in battery for long field life.
HK32F103C8TC
Low-power MCU selected for TX-only LoRa node
and farm not was ok ..issue with power only
Log Note – Stability Reality
Product functionality is complete, but long-term stability is difficult.
Main issues are power behavior, battery li...
🔹 Design Overview
The system uses three concentric PVC layers, each with a specific role.
🔹 Part-wise Explanation
🟦 Part 1: Inner Elec...
📷 Has image
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my father look path wires from grid to charger no issue ..i need to go there and check ..jab tak farm node offline hi rahega ..
Node stopped due to power path failure (11:54am), not code or LoRa.
Grid/USB charging is unreliable (heat, wire, animals).
Battery must be primary p...