Product Quantity Subtotal Generic 12V One Channel RF Wireless Relay Module with Remote Control $2.83 Generic 12V One Channel RF Wireless Relay Module with Remote Control quantity × $2.83 Generic 12V One Channel RF Wireless Relay Module with Remote Control quantity $2.83 NRF51822 BLE4.0 Bluetooth 2.4G Wireless Module, Onboard Rev3 $5.14 NRF51822 BLE4.0 Bluetooth 2.4G Wireless Module, Onboard Rev3 quantity × $5.14 NRF51822 BLE4.0 Bluetooth 2.4G Wireless Module, Onboard Rev3 quantity $5.14 JDY-31 SPP-C Bluetooth Module $1.77 JDY-31 SPP-C Bluetooth Module quantity × $1.77 JDY-31 SPP-C Bluetooth Module quantity $1.77 ESP8266 Adapter Plate Serial Wireless WIFI Module-1pcs $0.03 ESP8266 Adapter Plate Serial Wireless WIFI Module-1pcs quantity × $0.03 ESP8266 Adapter Plate Serial Wireless WIFI Module-1pcs quantity $0.03 NRF52840 Low Power BLE Module with Ceramic Antenna $10.22 NRF52840 Low Power BLE Module with Ceramic Antenna quantity × $10.22 NRF52840 Low Power BLE Module with Ceramic Antenna quantity $10.22 Coupon: Apply coupon Update cart Cart totals Subtotal $19.99 Total $19.99 — OR — Proceed to checkout
