Programmable Ultrasonic Cat Repellent Device
Publicada el 2026-07-30
Descripción de la oferta
I am looking for a freelancer with experience in electronics design and prototyping to build a programmable ultrasonic cat repellent device. The device should meet the following specifications: Supply: 220V / 50Hz AC input Output Frequency: Adjustable 25–40 kHz band, selectable fixed frequency or sweep mode Amplitude Control: Knob‑adjustable output amplitude (0–100%) Timing Control: ON/OFF cycle settable in seconds, or continuous ON Display: 4‑Line digital display showing live frequency, amplitude % etc. Waveform Quality: Clean sine output, no harmonics (inaudible to humans) Interface: Rotary knobs for Start Freq, Stop Freq, Amplitude, ON Time, OFF Time Cost Target: Low‑cost build using easily available components in India Deliverables: Circuit schematic and PCB layout Component list with vendor sources (India) Assembled prototype in enclosure Documentation for operation Budget: ₹4,000 – ₹5,500 (negotiable based on scope and quality) Timeline: 2–3 weeks for prototype delivery Location: India Skills Required: Electronics circuit design (Arduino, DDS, MOSFET drivers) PCB layout and assembly Experience with ultrasonic transducers Ability to source components locally (Robu.in, Sunrom, element14, Mouser India, Amazon India)
Skills
Fuente original: freelancer