A hardware integration studio, not a reseller
Asquarete works on a narrow problem from Hyderabad, India: getting UHF RFID, barcode and NFC hardware to run reliably in production on Android and .NET — not just in a vendor demo. We sell no hardware, so nothing here is written to move a device off a shelf.
Efron
Founder and hardware integration engineer
Every guide on this site is written by one engineer with the device in question on the bench. Eight years of Android work, most of it where the phone is talking to something else — a UHF reader, a label printer, a POS terminal, an NFC tag.
Client work has been mostly remote and mostly overseas, across Singapore, Switzerland, Belgium, Ireland and Lebanon. The hardware is the constant; the industry rarely is.
What's on the bench
Guides are written against these, not against a spec sheet.
| Device | What it's used for |
|---|---|
| Chainway C72 | Handheld UHF RFID reader — Android SDK integration, batch inventory scans |
| Chainway C5 | Rugged handheld terminal — barcode and RFID field deployments |
| Zebra RFD40 | Sled-mounted UHF RFID reader — Android integration, retail and asset tracking |
| Zebra ZD621R | RFID label printer and encoder — ZPL, encoding stations, print-and-verify |
| Zebra TC21 | Enterprise Android handheld — barcode scanning, line-of-business apps |
| Sunmi V2S | Android POS handheld — barcode integration, payment-adjacent workflows |
| Fixed UHF readers | Portal and gate reads — antenna placement, RF tuning, false-read filtering |
Why the guides exist
Every RFID and barcode vendor ships a tutorial. Almost none of them ship the part where the tutorial's own sample code breaks under real read rates, real tag densities, or a cold restart in the field. Zebra says so directly: its “Hello RFID” walkthrough states the demo app “is intended for tutorial purposes only and should not be used in production environments.” Chainway's sample repositories call SDK methods its own build marks obsolete.
These guides close that gap — which API calls hold up under load, which antenna placements produce false reads, and what an integration looks like once the tutorial ends.