1. Getting Started & System Navigation
PREVIX ELTECH SOLUTIONS is an advanced engineering platform founded by Mr. Pritam Prashant Chaudhari in Pune, Maharashtra. The system unites commercial hardware distribution, academic publications recognized at Fergusson College, hardware design calculators, laboratory video streams, and AI-powered schematics assistance into a unified portal.
Theme Switching
Toggle between Light mode and Dark mode using the crescent moon/sun icon at the top-right of the navbar. Your preference is persisted in browser storage.
User Authentication
Register with a 10-digit mobile number and secure password. Receive an automated welcome & login security confirmation email whenever you log in.
Session Telemetry
While logged in, your active uptime is dynamically calculated and synchronized to the database via secure 30-second heartbeat telemetry.
2. Products Catalog, Multi-Image Viewer & Cart
Explore industrial IoT controllers, smart switchboards, and STEM hardware modules with real-time stock statuses.
How to Search & Filter Products
- Visit Products from the main navigation.
- Use category pills (e.g. Embedded Systems, Smart Home, STEM Kits) to isolate product types.
- Type keywords, SKU codes (e.g.
PRX-ESP32), or features in the instant search box. - Click "View Specifications" to open the full product datasheet page.
Multi-Image Gallery & Cart
- On product detail pages, click any thumbnail in the gallery to inspect high-resolution PCB zoom views.
- Click "Add to RFQ Cart" to stage items. Open the cart drawer anytime to verify GST taxes, itemized subtotals, and volume discounts.
- Click "Download Datasheet (PDF)" to inspect electrical ratings, pinouts, and register maps.
3. Turnkey Engineering Projects & Bill of Materials
Learn how to inspect modular IoT architecture, hardware zero-cross detection schematics, and solar MPPT trackers.
Step-by-step Project Inspection:
1. Go to Projects to view tested prototypes.
2. Click any project card (e.g. Modular IoT Smart Automation Hub) to view its working principle, FreeRTOS architecture, and Bill of Materials (BOM) with quantities.
3. Use the "Live Demo" link or "Schematic Diagram" button to inspect Altium/KiCad circuit representations.
4. Interactive Engineering Calculators & Circuit Solvers
PREVIX includes 10 precision hardware tools designed to eliminate calculation errors during breadboard assembly.
| Solver Name | Formula / Standard | Required Inputs | Output Result |
|---|---|---|---|
| Ohm's Law Solver | V = I × R, P = V × I |
Any 2 values of Voltage, Current, or Resistance | Missing electrical parameters + Power consumption in Watts |
| Resistor Color Code | EIA Standard RS-279 | Select 4 or 5 color bands from dropdowns | Total Ohms, multiplier scale (Ω, kΩ, MΩ), and ±% tolerance |
| 555 Timer Astable Frequency | f = 1.44 / ((R1 + 2*R2) * C) |
Timing resistors R1, R2 and capacitor C1 | Oscillation frequency in Hz/kHz, period, and duty cycle % |
| Voltage Divider | Vout = Vin × (R2 / (R1 + R2)) |
Input voltage Vin, resistor R1, and resistor R2 | Output voltage Vout + loaded divider ratio |
| LED Series Resistor | R = (V_sup - V_led) / I_led |
Supply voltage, forward voltage drop, and operating mA | Recommended resistor value (Ω) and minimum power wattage (W) |
| PCB Trace Width | IPC-2221 Standards | Continuous current (Amps), temp rise (°C), copper oz | Minimum trace width in mils and millimeters for internal/external layers |
5. Video Laboratory & Bench Test Demonstrations
Access video walkthroughs directly on Videos.
Category Filtering
Filter by Embedded & IoT, Home Automation, STEM Kits, or Circuit Labs using quick pills.
Zero-Distraction Player
Clicking any video card launches an ultra-responsive 16:9 modal player with duration, view count, and technical bench notes.
Admin Video CMS
Administrators can publish YouTube streams or upload direct video files from disk via the admin control center.
6. PREVIX AI Engineering Assistant & Gemini Integration
The floating AI Assistant (robot icon at the bottom-right corner) provides real-time engineering answers for schematics, firmware code, and hardware selection.
Operational Rules & Limitations:
- Character Limit: To ensure high precision and avoid buffer overruns, questions are capped at 500 characters per prompt.
- Rate Limiting: Each client IP is permitted up to 15 queries per minute to protect server resources and maintain high responsiveness.
- Google Gemini API Key: Click the ⚙️ icon inside the AI drawer to supply your own Google Gemini Key. If no key is set, the assistant automatically utilizes the built-in PREVIX Neural Core Engine for hardware answers.
- Sample Questions: Try asking: "Calculate series resistor for 3.3V LED with 5V supply" or "Explain ESP32 dual-core FreeRTOS task pinning".
7. Commercial RFQ System & Automated Email Dispatch
Submit requests for quotation, custom hardware designs, or academic workshop bookings via Inquiry.
Automated Dispatch to Official Company Email
Every submitted inquiry is instantly processed by our transactional mailer using authorization key 6065a8dc-b6ea-4a75-b91c-992eba13ede8 and routed to:
previxeltech@gmail.com
Contains client name, email, 10-digit phone, budget range, and client IP address.Automated Customer Confirmation Receipt
The client receives an automated HTML confirmation receipt with:
- Unique reference ticket (e.g.
PRX-INQ-20260904-XXXX) - Guaranteed response SLA within 24 business hours
- Direct reply capability to Pune engineering headquarters
8. Administrator Console, Audit Logs & Session Telemetry
Authorized administrators can access PREVIX Management Console with full authority over products, projects, publications, videos, and telemetry.
User Accounts & RBAC
Manage Super Admin, Admin, Editor, and Customer roles. View registered dates, contact emails, and account statuses.
Real-Time Session Uptime
Under User Accounts, monitor active user login timestamps, client IP addresses, browser agents, and total active session uptime in hours, minutes, and seconds.
Audit Logs & Activity
Every product addition, file upload, video creation, or inquiry deletion is timestamped and recorded in activity_logs with client IP addresses.