Wireless Communication Library VCL Edition can be used with Lazarus/Free Pascal.
Starting from Bluetooth Framework 7.19.15.1, IrDA Framework 7.9.4.1, Serial Framework 7.8.5.1, Timeline Framework 7.2.4.1, WiFi Framework 7.12.5.1 the Wireless Communication Library packegs include pre-compiled binariesd for Lazarus/FreePascal.
Pre-compiled Lazarus libraries are built in Lazarus 3.4 and FPC 3.2.2. To be able to run the sample applications you need Lazarus 3.4 with FPC 3.2.2.
Should you have any questions please do not hesitate to contact us at support@btframework.com