The fingertip oximeter employs two AAA alkaline batteries to support up to 36 hours of continuous working time, thanks in part to the low power characteristics of the Nordic SoC, as well as the ability for the device to automatically power on/off when a patient’s finger is inserted and removed. The nRF52810 has been engineered to minimize power consumption with features such as the 2.4GHz radio’s 4.6mA peak RX/TX currents and a fully-automatic power management system that reduces power consumption by up to 80 percent compared with Nordic’s nRF51 Series SoCs.
Nordic’s nRF52810 multiprotocol SoC combines an 64MHz, 32-bit Arm Cortex M4 processor with a 2.4GHz multiprotocol radio (supporting Bluetooth 5, ANT™, and proprietary 2.4GHz RF protocol software) featuring reduced radio energy consumption, with 196kB Flash memory and 24kB RAM. The nRF52810 SoC is supplied with the latest version of Nordic’s S112 SoftDevice, Bluetooth 5-compliant RF protocol software.
“We selected the nRF52810 SoC for its competitive cost, low power consumption, and high overall performance. The Nordic SoC’s powerful CPU capability and Flash memory and RAM resources also allow us to run the SpO2 arithmetic effectively,” says Han Haiyang, Director of the Mobile Medical Division at Creative Medical.
“Nordic’s prompt technical support was incredibly valuable during the product development and testing process. We encountered a tricky communication problem during the development process but with Nordic’s assistance we were able to resolve the issue within two days.”