Can a SIM card be inserted into the sensor of the HPC168 bus passenger counter?

The HPC168's RJ45 interface uses the HTTP POST method for uploading and retrieving data. The server response must specify UTF-8 encoding and disable the Accept-Charset response header. All POST field values ​​are hexadecimal strings of the actual data.

Please refer to HPC168 protocol document for details, which contains complete parameter introductions and practical transmission examples for your integration testing.

Our ESL tags cannot run independently via direct Bluetooth connection from mobile phones, and a dedicated base station gateway is mandatory for full system operation.

All electronic shelf labels rely on the base station to receive data and synchronize display content from the management software. Without the supporting gateway, standalone price tags fail to receive update commands or function normally. This dedicated gateway design also stabilizes wireless communication across the whole supermarket environment.

Absolutely you can arrange extra backup items alongside your sample order or any subsequent formal bulk purchase of ESL price tags.

Please feel free to list required backup parts when confirming your order details. We will combine these spare goods into the same shipment to save extra delivery fees and streamline your receiving process efficiently.

There is no fixed upper limit on how many ESL labels a single gateway can manage, provided all tags fall within its effective signal coverage.

Each gateway (AP base station) delivers coverage across a circular area with a 20-meter radius. We normally suggest mounting the device on ceilings to avoid signal blockages from shelves, goods and wall structures. Proper high placement helps stabilize wireless transmission and lets the gateway connect with more in-store price tags reliably.