ESP32-Based 18V / 5000A DC Rectifier Monitoring System – Industrial Grade (India Only)
Budget: ₹12,500 – ₹37,500 INR
Need a complete hardware + firmware design for a 0–18V, 0–5000A DC rectifier monitoring system using ESP32-WROOM.
The system must accurately measure voltage and current (±2%), log data to SD card with RTC timestamps, display readings on LCD, and operate 24 hrs on battery backup with full electrical protection.
Core Requirements:
Controller: ESP32-WROOM (Wi-Fi AP/STA selectable via slide switch) Module (Connect via header 38 pin)
Measurement:
Dual shunt inputs
Port 1 – 0-100 mV (voltage-type shunt)
Port 2 – 0-100 mA (current-type shunt)
Firmware-selectable & polarity configurable (High/Low type)
shunt-to-current mapping
Voltage range 0–18V DC and 0-36V DC
Accuracy ±2 %
Display & Controls: 1602 LCD (I²C) + 5 switches (1 analog port, debounced) + Reset button
Digital I/O: 4 IN + 4 OUT (opto-isolated with LEDs)
Analog I/O: 2 IN (0–10 V via IC ADC 12-bit) + 2 OUT (0–10 V clean DC DAC)
Storage: microSD card + RTC (with battery backup)
Power: 220 V AC → HiLink DC converter
Battery Backup: 24 hr Li-ion + BMS (ESP32 monitors voltage & mode)
Electrical Protections (Required):
Input: reverse-polarity, over-voltage, over-current, surge, ESD
Output: short-circuit, overload, isolation on opto lines
Power: surge, reverse, thermal, fuse protection
Battery: over-charge/discharge & status feedback
Deliverables:
Full schematic + PCB layout (2 layer)
BOM with India-available parts
Working prototype + Enclosure + test code & video
3D Enclosure STL and STEP files
Who Should Apply:
Indian embedded engineers / hardware developers only
Proven work with ESP32, precision analog circuits, and industrial protection design
Must deliver a tested prototype
To Apply
Please include:
Short approach + ICs you plan to use
Estimated cost & timeline
Links or photos of previous ESP32 / industrial control projects
The system must accurately measure voltage and current (±2%), log data to SD card with RTC timestamps, display readings on LCD, and operate 24 hrs on battery backup with full electrical protection.
Core Requirements:
Controller: ESP32-WROOM (Wi-Fi AP/STA selectable via slide switch) Module (Connect via header 38 pin)
Measurement:
Dual shunt inputs
Port 1 – 0-100 mV (voltage-type shunt)
Port 2 – 0-100 mA (current-type shunt)
Firmware-selectable & polarity configurable (High/Low type)
shunt-to-current mapping
Voltage range 0–18V DC and 0-36V DC
Accuracy ±2 %
Display & Controls: 1602 LCD (I²C) + 5 switches (1 analog port, debounced) + Reset button
Digital I/O: 4 IN + 4 OUT (opto-isolated with LEDs)
Analog I/O: 2 IN (0–10 V via IC ADC 12-bit) + 2 OUT (0–10 V clean DC DAC)
Storage: microSD card + RTC (with battery backup)
Power: 220 V AC → HiLink DC converter
Battery Backup: 24 hr Li-ion + BMS (ESP32 monitors voltage & mode)
Electrical Protections (Required):
Input: reverse-polarity, over-voltage, over-current, surge, ESD
Output: short-circuit, overload, isolation on opto lines
Power: surge, reverse, thermal, fuse protection
Battery: over-charge/discharge & status feedback
Deliverables:
Full schematic + PCB layout (2 layer)
BOM with India-available parts
Working prototype + Enclosure + test code & video
3D Enclosure STL and STEP files
Who Should Apply:
Indian embedded engineers / hardware developers only
Proven work with ESP32, precision analog circuits, and industrial protection design
Must deliver a tested prototype
To Apply
Please include:
Short approach + ICs you plan to use
Estimated cost & timeline
Links or photos of previous ESP32 / industrial control projects