Bluetooth 5 Low Energy module for harsh radio environments
Panasonic Industry has used a chip from Nordic Semiconductor for a Bluetooth 5 Low Energy (LE) module for harsh radio environments.
The PAN1770 module is based on the nRF52840 single chip controller from Nordic and includes a uFL connector which enables the use of an external antenna. This is useful for radio-unfavourable applications where difficult housing conditions shield radio waves and an external antenna needs to be used.
The module measures 15.6 mm x 8.7 mm x 1.8 mm and provides output power of up to 8 dBm and sensitivity of 95 dBm at 1 Mb/s and -103 dBm at 125 kb/s support long range operation. Low current consumption of 4.8 mA in Tx (at 0 dBm), 4.8 mA in Rx mode, 0.4 μA in System OFF mode and ~0.7 μA with RTC wake-up make the PAN1770 module suitable for battery-powered devices using the Matter IoT protocol.
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The nRF52840 is based around an ARM Cortex M4F processor core with 256 kB RAM and built-in 1 MB flash memory and can be used in standalone mode, eliminating the need for an external processor. This reduces the complexity of the module design.
The PAN1770 module also supports Type 2 Near Field Communication (NFC A) for use in simplified pairing and payment solutions with the external antenna.
”We have seen that in many devices or applications, radio waves emitted by the chip antenna can be blocked or reflected by the metallic housing, making it difficult to receive the radio signal from the outside,” said Tomislav Tipura from Panasonic Industry Europe. “By using our new PAN1770 module, an external antenna can easily be attached via the uFL connector and thus redirect the radio waves outside the housing.”
The module also includes support for the 802.15.4 protocols for Matter, Zigbee and Thread, as well as up to 48 programmable GPIOs and SPI, I2C, UART, PWM, ADC, NFC and USB2.0 interfaces.
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