Secondary Components

Main Component	Secondary Components	JLC Part #	Additional Design Consideration Notes
Barometric Altimeter MS560702BA03- D0ne \|ewis	10 kΩ pull-up resistors 100 nF Ceramic Capacitor	100nF Ceramic Capacitor: C1525 10k pull-up Resistor: C25744	CSB controls last bit of I2C address, should be connected to VDD or GND PS should be tied to VDD for I2C mode 100nF Ceramic Capacitor should be placed as close as possible to VDD
Barometric Altimeter BMP390 - D0ne M-dawg	100 nF capacitor for C1 and C2 4.7 kΩ resistor for R1 and R2	100 nF Capacitor: C1525 4.7 kΩ Resistor: C25900	When CSB is connected to VDDIO then I2C interface is active SDO works as I2C Address Pin Select
High G accel ADXL375- D0ne \|ewis	SCL and SDA each need a 10 kΩ pull-up resistor 10 µF tantalum capacitor in parallel with a 0.1 µF ceramic capacitor (CS) at VS 0.1 µF ceramic capacitor (CI/O) at VDD I/O	10k pull-up Resistor: C25744 10 µF tantalum capacitor: C7171 0.1 µF ceramic capacitor: C1525	CS pin tied to VDD I/O ALT ADDRESS pin tied to VDD I/O or GND (determines address) Capacitors should be placed close to the ADXL375 supply pins are recommended to adequately decouple the accelerometer from noise on the power supply. If additional decoupling is necessary, a resistor or ferrite bead (no larger than 100 Ω) in series with VS may be helpful. Additionally, increasing the bypass capacitance on VS to a 10 µF tantalum capacitor in parallel with a 0.1 µF ceramic capacitor may also improve noise performance.
Microcontroller STM32F411VET6
Status LEDs JIM
Magnetometer LIS3MDL	Pull-up Resistor Shared With Other ICs Capacitor C1 = 100 nF Low-Frequency Electrolytic Capacitor C2 = 1 μF as near as possible to the supply pin High-Frequency Decoupling Ceramic Capacitor C3 = 100 nF	100 nF Capacitor: C1525 1 μF Low-Frequency Electrolytic Capacitor: 100 nF High-Frequency Decoupling Ceramic Capacitor:	"There are two signals associated with the I2C bus: the serial clock line (SCL) and the serial data line (SDA). The latter is a bidirectional line used for sending and receiving the data to/from the interface. Both lines must be connected to Vdd_IO through an external pull-up resistor. When the bus is free, both the lines are high." CS pin set to 1 for SPI idle mode / I2C communication enabled; set to 0 for SPI communication mode SDO/SA1 pin has to be connected to Vdd_IO or GND to set I2C address
Gyroscope L3GD20H - d0ne mdawg	C1 = 10 nF / minimum 1nF value under 12V bias conditions Between Vdd and GND have 100 nF + 10 μF in parallel If vdd and vdd_IO are not connected, then there must be a 100nF between vdd_IO and GND SCL and SDA each need a 10 kΩ pull-up resistor	10 nF Ceramic Capacitor: C15195 100 nF Capacitor: C1525 10 μF Capacitor: C15850 10k pull-up Resistor: C25744	Power supply decoupling capacitors (100 nF + 10 μF) should be placed as near as possible to the device (common design practice) If Vdd and Vdd_IO are not connected together, 100 nF and 10 μF decoupling capacitors must be placed between Vdd and common ground while 100 nF between Vdd_IO and common ground. Capacitors should be placed as near as possible to the device (common design practice). CS pin set to 1 for SPI idle mode / I2C communication enabled; set to 0 for SPI communication mode SDO/SA0 pin controls LSB of I2C address (connected to VDD for LSB of 1, GND for LSB of 0) DEN - gyroscope data enable, connect to GND if not used Cap should be connected to GND with ceramic capacitor (10nF (±10%), 25 V. 1nF min value has to be guaranteed under 12 V bias condition
Temp TMP117- d0ne mdawg	5 kΩ pull-up resistor on SCL, SDA, and Alert		A power-supply bypass capacitor is required, which must be placed as close to the supply and ground pins of the device as possible. A recommended value for this supply bypass capacitor is 100 nF. Applications with noisy or high-impedance power supplies may require additional decoupling capacitors to reject power-supply noise. On V+ Resistor must be 0.5 kΩ or less and capacitor must be 100nF or greater.
Low G Accelerometer MMA8451- Done
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