X-NUCLEO-IDB04A1 Bluetooth low energy expansion board based on BlueNRG for STM32 Nucleo Data brief X-NUCLEO-IDB04A1 is officially certificated as a BTLE 5mW module for Japan Radio Law “TYPE” Certification by Japan government RoHS compliant Description Features BlueNRG low power, low energy Bluetooth network coprocessor BALF-NRG-01D3 balun & harmonic filter Free comprehensive development firmware library and example for BlueNRG, compatible with STM32Cube firmware Bluetooth low energy 4.0 master and slave compliant Compatible with STM32 Nucleo boards Equipped with Arduino UNO R3 connector Very low power consumption: 7.3 mA RX and 8.2 mA TX at +0 dBm Maximum transmission power: +8 dBm Excellent receiver sensitivity (-88 dBm) X-NUCLEO-IDB04A1 is FCC certified (FCC ID: S9NIDB04A1) May 2015 The X-NUCLEO-IDB04A1 is a Bluetooth low energy evaluation board to allow expansion of the STM32 Nucleo boards. It is compatible with the Arduino UNO R3 connector layout, and is designed around BlueNRG, a Bluetooth low energy, low power network coprocessor compliant with BTLE 4.0 and the BALF-NRG01D3, an ultra miniature balun optimized for ST BlueNRG RF IC, which integrates matching network and harmonics filter. The X-NUCLEOIDB04A1 interfaces with the STM32 MCU via SPI pin, and the user can change the default SPI clock, the SPI chip select and SPI IRQ by changing one resistor on the evaluation board. The excellent performance of BlueNRG and the best matching between BlueNRG and BALFNRG-01D3, X-NUCLEO-IDB04A1 passed the RF TEST for Japan Radio Law certification with higher margin above the specification values as well as it is FCC certified (FCC ID: S9NIDB04A1). DocID026260 Rev 3 For further information contact your local STMicroelectronics sales office 1/5 www.st.com Formal Notices Required by the U.S. Federal Notices Required by the U.S. Federal Communications Commission (“FCC”) 1 X-NUCLEO-IDB04A1 Formal Notices Required by the U.S. Federal Notices Required by the U.S. Federal Communications Commission (“FCC”) Any changes or modifications to this equipment not expressly approved by STMicroelectronics may cause harmful interference and void the user’s authority to operate this equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including any interference that may cause undesired operation. This device uses, generates and radiated radio frequency energy. The radio frequency energy produced by this device is well below the maximum exposure allows by Federal Communications Commission (FCC). The X-NUCLEOIDB04A1 is FCC certified (FCC ID: S9NIDB04A1). Figure 1: Functional block diagram PCB Antenna 32MHz Antenna tuning circuit (BALF-NRG-01D3) 32MHz BlueNRG SPI Bus (2Mbps) STM32L Microcontroller JTAG Connector GSPG1105150930SG 2/5 DocID026260 Rev 3 1 2 3 4 DocID026260 Rev 3 CLK MOSI 1u_0402_X5R C17 CLK 1u_0402_X5R C20 VDD VDD SPI_MOSI SPI_CLK SPI_IRQ TEST1 VBAT3 TEST2 TEST3 TEST4 BlueNRG C18 100n_0402_X7R C21 100n_0402_X7R VBAT2 VBAT1 100p_0402_COG C15 TEST7 TEST6 TEST5 C19 100n_0402_X7R CON8 MOSI 1 2 CLK 3 IRQ TEST1 4 VBAT3 5 6 7 TEST4 8 TEST9 TEST8 R9 100k_0402 3V3 8 7 6 5 4 3 2 1 CN9 CON10 1 D1 C5 VDD 24 23 22 21 20 19 18 17 1u_0402_X5R C22 VDD Q1 VBAT3 A1 A2 TEST9 TEST8 TBD_0402 1 2 TEST9 TEST8 15p_0402_COG C14 100n_0402_X7R C23 L2 U4 B1 B2 BALF-NRG-01D3 4 3 22p_0402_COG C6 TBD_0402 LF-XTAL L1 HF-XTAL Q2 VBAT2 C16 100n_0402_X7R C13 15p_0402_COG VBAT1 SXTAL0 SXTAL1 RF0 RF1 VBAT2 FXTAL0 FXTAL1 22p_0402_COG 3 Solder a 10u_0805 between 1-2 or a 0R0_0805 between 1-3 56p C27 10k_0402 R2 56p C25 1 TEST10 TBD_0402 L4 3 TEST10 VDD JP1 C26 PCB Meander Antenna GND 3 TBD_0402_COG C24 nc R1 U.FL connector 1 GND J2 VDD TBD_0402_COG M95640 8 7 6 5 0 R10 0 R14 U1 16 15 14 13 12 11 10 9 nS Vcc Q nHOLD nW C D Vss IRQ U3 CSN CLK Not mounte d R15 IRQ CSN 0 R16 nS RST Not mounted nS MISO 0 0 R13 MISO MOSI GND TEST12 TEST11 TEST9 TEST8 VDD1V8 TEST7 TEST6 TEST5 R7 R11 0 CN5 150n_0402_X5R C4 C2 100n_0402_X7R RESETN SMPSFILT1 NO_SMPS SMPSFILT2 VDD1V2 TEST10 SPI_CS SPI_MISO 100k_0402 2 10 9 8 7 6 5 4 3 2 1 33 Not mounted U5 2 Not mounted 0 100p_0402_COG C3 C1 1u_0402_X5R 2 CON6 0 1 VDD R17 Test connector TEST1 R6 nc VDD RST 25 26 NO_SMPS 27 28 29 TEST10 30 CSN 31 MISO 32 1 2 3 4 5 6 1 Jumper2 R12 3V3 R5 nc 1 3 5 7 9 VBAT1 CN8 1 2 3 4 5 6 7 8 R4 nc J1 SIG CON8 CN6 R3 nc 2 4 6 8 10 2 TEST5 TEST4 TEST6 TEST7 NO_SMPS 2 2 Male Connector 2x5 X-NUCLEO-IDB04A1 Schematic diagram Schematic diagram Figure 2: Circuit schematic GSPG1105151045SG 3/5 Revision history 3 X-NUCLEO-IDB04A1 Revision history Table 1: Document revision history 4/5 Date Rev Changes 08-May-2014 1 First release. 01-Dec-2014 2 Features and Description in cover page have been updated. 20-May-2015 3 Added new Section 1. 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