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Discovery kit for the IoT node allows the user to develop applications with a direct connection to the cloud servers. The B-L4S5I-IOT01A Discovery kit for the IoT node enables a wide diversity of applications by exploiting low-power multilink ® ®...
• Flexible power-supply options: ST-LINK, USB V or external sources • On-board ST-LINK/V2-1 debugger/programmer with USB re-enumeration capability: mass storage, Virtual COM port, and debug port • Comprehensive free software libraries and examples available with the STM32Cube MCU Package ™...
Evaluation tools marked as “ES” or “E” are not yet qualified and therefore not ready to be used as reference design or in production. Any consequences deriving from such usage will not be at ST charge. In no event, ST will be liable for any customer usage of these engineering sample tools as reference designs or in production.
UM2708 Development environment Development environment The B-L4S5I-IOT01A Discovery kit for the IoT node runs with the STM32L4S5VI 32-bit microcontroller based on ® ® the Arm Cortex -M4 core. System requirements ® ® ® • Windows OS (7, 8 and 10), Linux 64-bit, or macOS •...
UM2708 Conventions Conventions Table 3 provides the conventions used for the ON and OFF settings in the present document. Table 3. ON/OFF convention Convention Definition Jumper JPx ON Jumper fitted Jumper JPx OFF Jumper not fitted Jumper JPx [1-2] Jumper fitted between Pin 1 and Pin 2 Solder bridge SBx ON SBx connections closed by 0 Ω...
UM2708 Delivery recommendations Delivery recommendations Before the first use, make sure that no damage occurred to the board during shipment and no socketed components are not firmly fixed in their sockets or loose in the plastic bag. UM2708 - Rev 1 page 6/43...
UM2708 Hardware layout and configuration Hardware layout and configuration The B-L4S5I-IOT01A Discovery kit for the IoT node is designed around the STM32L4S5VIT6U target microcontroller in a 100-pin LQFP package. The hardware block diagram (Refer to Figure 2) illustrates the ®...
In case the B-L4S5I-IOT01A Discovery kit for the IoT node is connected to the PC before the driver is installed, some Discovery board interfaces may be declared as “Unknown” in the PC device manager. In this case, the user...
Power supply The B-L4S5I-IOT01A Discovery kit for the IoT node is designed to be powered by a 5 V DC power supply. It is possible to configure the B-L4S5I-IOT01A Discovery kit for the IoT node to use any of the following five sources for the power supply: 5V_ST_LINK, 5V_ARD, 5V_USB_FS, 5V_VBAT, and 5V_USB_CHARGER.
UM2708 Power supply Figure 8. JP4: 5V_ARD selection from CN6 (VIN) 5V_ST_LINK 5V_ARD 5V_USB_FS 5V_VBAT 5V_USB_CHARGER 5V_USB_FS (Refer to Figure This is the DC power with 500 mA limitation from CN9, the USB OTG FS Micro-AB connector. In this case, the JP4 jumper must be fitted between pin 5 and pin 6 to select the 5V_USB_FS power source on the JP4 silkscreen.
In this specific case only, the resistor R30 must be soldered, to allow the board to be powered anyway. Caution: Do not connect the PC to the ST-LINK (CN7) when R30 is soldered. The PC may be damaged or the board may not be powered correctly. UM2708 - Rev 1...
UM2708 Power supply The green LED LD5 is lit when the B-L4S5I-IOT01A Discovery kit for the IoT node is powered by the 5 V correctly. The power tree is shown in Figure 12. Power tree. Figure 12. Power tree 5V_USB_ST_Link...
0-ohm resistor (0402 size) at the R7 position The B-L4S5I-IOT01A Discovery kit for the IoT node can be powered by the USB connectors at 5 V DC with 500 mA current limitation. A USB power switch (IC19) is also connected to V and provides power to CN9.
6.9.1 ® Bluetooth (V4.1 compliant) SPBTLE-RF module The ST SPBTLE-RF module (M1) is implemented on the top side of the B-L4S5I-IOT01A Discovery kit for the IoT node. ® The SPBTLE-RF is an easy to use Bluetooth smart master-slave network processor module, compliant with ®...
Inventek Systems ISM43362-M3G-L44 (802.11 b/g/n compliant Wi‑Fi module) The Inventek Systems ISM43362-M3G-L44 module (M2) is implemented on the top side of the B-L4S5I-IOT01A Discovery kit for the IoT node This module is an embedded (eS-WiFi) wireless Internet Connectivity device. The ®...
UM2708 RF modules The main features of the Inventek system ISM43362-M3G-L44 module are: • Based on the Broadcom BCM43362 MAC/Baseband/Radio device • Supports Broadcom WICED SDK ® ® • CPU Arm Cortex -M3 32-bit RISC core from STMicroelectronics • IEEE 802.11n D7.0, OFDM-72.2 Mbps, single-stream width of 20 MHz, and short GI •...
SPSGRF-915). The footprint is implemented (M3 designation), but no module is soldered. 6.10 STMicroelectronics sensors Several STMicroelectronics sensors are available on the B-L4S5I-IOT01A Discovery kit for the IoT node and are listed below: • Two on-board ST-MEMS audio sensor omnidirectional digital microphones (MP34DT01) •...
UM2708 STMicroelectronics sensors On the B-L4S5I-IOT01A Discovery kit for the IoT node, there are two MP34DT01 microphones: one with LR pulled to VDD and the second with LR pulled low. DFSDM1_CKOUT and DFSDM1_DATIN2 are connected to both. In addition, both microphones are spaced at 21 mm apart for the beamforming algorithm to work. Indeed, several algorithm configurations are available for the user to find the best trade-off between audio output quality and resource consumption.
The device comprises a sensing element and an IC interface which communicates from the sensing element to the application through I2C or SPI. On the B-L4S5I-IOT01A Discovery kit for the IoT node, the I2C2 bus from STM32L4S5VIT6U is used.
UM2708 STSAFE-A110 The main features of VL53L0X are listed below. • Fully integrated miniature module: – 940 nm Laser VCSEL – VCSEL driver – Ranging sensor with an advanced embedded microcontroller – 4.4 mm x 2.4 mm x 1.0 mm size •...
Buttons and LEDs The black button (B1) located on the middle left side is the reset of the STM32L4S5VIT6Umicrocontroller. Refer to Figure 3. B-L4S5I-IOT01A Discovery kit for the IoT node layout (top view). The blue button (B2) located on the top left side is available to be used as a digital input or as an alternate wake- up function.
Blue LED4 (BLE) PC9, Bluetooth activity Green 5V Power 5 V available Bicolor (Red and green) ST-LINK COM Green during communication Fault Power Current higher than 750 mA OCRCR Green 5 V USB available 6.13 C addresses of modules used on MB1297...
UM2708 Connectors Connectors Nine connectors are implemented on the B-L4S5I-IOT01A Discovery kit for the IoT node: ® • CN1, CN2, CN3 and CN4 for ARDUINO Uno V3 connector • CN5: Tag connector • CN7: ST-LINK USB connector • CN8: ST-LINK debug connector •...
10-pin footprint supporting SWD mode, which is shared with the same signals as the ST-LINK. The TC2050-IDC- NL cable is used to link ST-LINK and Tag connector on the B-L4S5I-IOT01A Discovery kit for the IoT node so that the STM32L4+ can be easily programmed and debugged without any extra accessory.
UM2708 ST-LINK/V2-1 USB Micro-B ST-LINK/V2-1 USB Micro-B The USB connector is used to connect the embedded ST-LINK/V2-1 to the PC to program and debug the STM32L4S5VIT6U microcontroller. Table 8. USB Micro-B connector pinout STM32L Connector Pin name Signal name Function...
USB_OTG_FS_PWR_EN PD12 USB power enable Pmod™ connector CN10 ™ On the B-L4S5I-IOT01A Discovery kit for the IoT node, the Pmod connector provides flexibility in small form ™ ™ factor applications. Based on Digilent's Pmod standard popular in connectivity, the Pmod connector is ™...
UM2708 Jumper JP5 for IDD measurements Jumper JP5 for I measurements The STM32 current measurement can be done on JP5. By default, a jumper is placed on JP5. For current measurement configuration, the jumper on JP5 must be removed and an amp-meter must be placed on JP5.
UM2708 B-L4S5I-IOT01A Discovery kit for the IoT node I/O assignment Appendix A B-L4S5I-IOT01A Discovery kit for the IoT node I/O assignment Table 13. B-L4S5I-IOT01A Discovery kit for the IoT node I/O assignment Pin number Pin name Feature / comment Signal / label...
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UM2708 B-L4S5I-IOT01A Discovery kit for the IoT node I/O assignment Pin number Pin name Feature / comment Signal / label GPIO_Output ARD.D8 MEMS microphone DFSDM1_DATIN2 GPIO_Output ISM43362-RST MEMS microphone DFSDM1_CKOUT PE10 QSPI NOR Flash memory QUADSPI_CLK PE11 QSPI NOR Flash memory...
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UM2708 B-L4S5I-IOT01A Discovery kit for the IoT node I/O assignment Pin number Pin name Feature / comment Signal / label PA15 TIM2_CH1 ARD.D9-PWM PC10 SPI3_CLK INTERNAL-SPI3_SCK PC11 SPI3_MISO INTERNAL-SPI3_MISO PC12 SPI3_MOSI INTERNAL-SPI3_MOSI GPIO_Output PMOD-RESET GPIO_Output PMOD-SPI2_SCK GPIO_EXTI2 PMOD-IRQ_EXTI2 USART2_CTS PMOD-UART2_CTS/SPI2_MISO...
Federal Communications Commission (FCC) and Industry Canada (IC) Compliance Statements Appendix B Federal Communications Commission (FCC) and Industry Canada (IC) Compliance Statements Applicable for IoT node Discovery kit products with order code B-L4S5I-IOT01A. FCC Compliance Statement FCC Compliance Statement Contains FCC ID: O7P-362 Contains FCC ID: S9NSPBTLERF Part 15.19...
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UM2708 IC Compliance Statement Licence-Exempt Radio Apparatus (ISED) This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions: This device may not cause interference. This device must accept any interference, including interference that may cause undesired operation of the device.
STMicroelectronics sensors........... . . 20 6.10.1 Two on-board ST-MEMS microphones (MP34DT01)......20 6.10.2 Capacitive digital sensor for relative humidity and temperature (HTS221).
B-L4S5I-IOT01A Discovery kit for the IoT node layout (bottom view) .......
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ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’...
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