Windows USB Temp/Humidity Datalogger
Budget: ₹12,500 – ₹37,500 INR
I need a compact USB device with 3vdc battery powred that continuously records both temperature and relative humidity, then stores the readings locally until I plug it into a PC. Once connected, a lightweight Windows application should automatically pull the stored data and show it in an easy-to-read table—date/time stamp, temperature in °C, and %RH per line, with options to export to CSV or Excel.
Core requirements
• On-board sensors accurate to at least ±0.5 °C and ±3 %RH.
• User-selectable logging interval (e.g., 1 s to 30 min) saved to non-volatile memory.
• Windows desktop software built in C#, Python, or another common language that needs no special licenses.
• The UI opens directly to a tabular view; basic filters (date range) and a “Download/Save” button are enough.
• When the logger remains connected, live readings should append to the table in real time.
Deliverables
1. Schematics, BOM, and firmware for the USB logger.
2. Fully compiled Windows installer plus source code for the desktop app.
3. Brief user guide covering setup, calibration, and data export.
I’ll test the device in a small environmental chamber; acceptance is a 48-hour log with no data gaps and values matching my reference sensors within spec. Let me know which sensor IC and USB-MCU you plan to use, and your lead time for a first prototype.
Core requirements
• On-board sensors accurate to at least ±0.5 °C and ±3 %RH.
• User-selectable logging interval (e.g., 1 s to 30 min) saved to non-volatile memory.
• Windows desktop software built in C#, Python, or another common language that needs no special licenses.
• The UI opens directly to a tabular view; basic filters (date range) and a “Download/Save” button are enough.
• When the logger remains connected, live readings should append to the table in real time.
Deliverables
1. Schematics, BOM, and firmware for the USB logger.
2. Fully compiled Windows installer plus source code for the desktop app.
3. Brief user guide covering setup, calibration, and data export.
I’ll test the device in a small environmental chamber; acceptance is a 48-hour log with no data gaps and values matching my reference sensors within spec. Let me know which sensor IC and USB-MCU you plan to use, and your lead time for a first prototype.