咨询：是否仍可购买支持Eddystone-EID的信标产品

Hey Daniel, I totally get how frustrating it can be to track down beacons that support Eddystone-EID—since it's a privacy-focused niche frame type, it's not as widely advertised on big platforms like Amazon or Alibaba. Here are some solid options that fellow developers in the community have used and recommended:

• Nordic Semiconductor nRF52-Based Beacons: These are incredibly versatile. Most off-the-shelf beacons built on the nRF52 chipset can be flashed with custom firmware (using the Nordic SDK) to enable Eddystone-EID. Look for models that support over-the-air (OTA) firmware updates—they’ll let you switch to EID mode without needing physical access to the beacon.
• Radius Networks RadBeacon X2: This model supports Eddystone-EID right out of the box. It’s a go-to for many devs because it’s easy to configure via their mobile app, and it’s built specifically for BLE beacon use cases like proximity tracking.
• Custom DIY Beacons: If you’re comfortable with hardware tinkering, you can build your own using modules like the nRF52832 or nRF52840. The Eddystone specification is open-source, so you can implement the EID frame using Google’s official Eddystone libraries or Nordic’s BLE stack. This is a great option if you need custom features alongside EID support.
• Estimote Proximity Beacons (Gen 2 and newer): Some of Estimote’s higher-end models support Eddystone-EID, but you’ll need to verify the firmware version and use their developer tools to enable the EID frame. Not all their beacons include this, so make sure to check the product specs closely before purchasing.

A quick pro tip: When searching, try using more specific terms like "Eddystone EID beacon" or "BLE ephemeral ID beacon" instead of just "Eddystone"—this can help you find smaller niche manufacturers that specialize in privacy-focused beacon hardware, even if they don’t pop up on the first page of Amazon or Alibaba.

内容的提问来源于stack exchange，提问作者daniel