BLX109 BLE Module (IPEX)

Your next wearable should not start with a year of RF layout. BLX109 is Daira’s ultra-compact Bluetooth LE 5.4 module for teams who need idea-to-product speed without giving up signal integrity: STM32WB09 inside, 15.6 × 12 mm outside, castellated edges that go from breadboard carrier to reflowed product without redesigning the footprint. This SKU is the IPEX antenna variant, keep antenna strategy flexible when the enclosure, wrist curve, or metal accents push the radiator off the module. Under the shield: a 4-layer RF PCB, IPD matching, 50 Ω controlled traces, and a Faraday cage for quieter emissions and a cleaner path toward certified end products. Ample flash and RAM for stacks and RTOS-class firmware, nanoamp-class sleep for coin cells, and hardware crypto when connected products need trust. Wearables, tracking, lighting, health, and industrial BLE, one module, many markets.