A wise plug that’s enabled for IoT and primarily based on a Bluetooth low vitality (BLE) system-on-chip (SoC) software processor module.
Within the progressive world, the Web of Issues (IoT) has the potential to revolutionize the way in which we dwell and work in some ways, making our lives extra handy, environment friendly, and safer. For instance, IoT can be utilized to watch and optimize vitality consumption, handle visitors move, and scale back waste. Turning on or off any digital machine together with your good machine isn’t any new factor on the subject of IoT. STMicroelectronics have made the lives of engineers straightforward by launching a reference design of good plugs, particularly for dwelling automation. The reference design makes use of Bluetooth Low Vitality (BLE) specification 5.2 to facilitate the safe transmission of metering knowledge from designated electrical masses to a BLE-supported smartphone. The machine can carry out a number of roles concurrently, functioning as each a Bluetooth good grasp and slave machine concurrently. The machine can join with the smartphone software or another good machine, permitting entry to load administration options reminiscent of turning ON/OFF, scheduling, dimming, and metering parameters. This design is perfect in functions that require a small type issue and don’t require a big present.
The reference design relies on the BLUENRG-M2SP, a licensed BLE SoC software processor module, which complies with BLE specification 5.2. When linked to AC mains, the machine’s present consumption ranges from 3 to 7 mA. The machine features as a BLE peripheral machine, linking it to any good machine utilizing the particular Android software. This permits customers to handle and observe the load and its vitality metrics. The good plug comprises an STPM32 metering chip that precisely measures energy and vitality in energy line techniques that make the most of shunt present sensors. It additionally contains a three-terminal triode for alternating present (TRIAC) that regulates the present move by AC switching for numerous electrical system functions, together with a non-isolated buck converter provide that’s primarily based on the VIPER06XS.
The usual metering IC screens the primary provide and masses. In distinction, the Bluetooth Low Vitality module manages knowledge and command interfacing with the Android software, which is designed for the board. Moreover, the module can retailer knowledge by the Electrically Erasable Programmable Learn-only Reminiscence (EEPROM) connector. The board comes geared up with a guide swap that allows customers to change the load on and off, in addition to LEDs that point out the connectivity standing.
Options of STMicroelectronics Reference Design:
- Sensible Vitality Meter design with wi-fi connectivity
- BLE (Bluetooth Low Vitality) v5.2 connectivity to regulate and show metering parameters
- NFC interface: to configure the design and retailer the logs
- Dimming of sunshine for TRIAC dimmable load rated under 12 A
- Rated voltage: 240/120 VAC
- Rated present: 12 A
- Energy consumption of plug: 0.7 W (max.)
- Instantaneous and averaged energy
- RMS and instantaneous voltage and present
STMicroelectronics has examined this reference design. It comes with a Invoice of Materials (BOM), schematics, and so forth. You’ll find further knowledge in regards to the reference design on the corporate’s web site. To learn extra about this reference design, click on right here.
