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 Image Added
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Gyroscope L3GD20H | - 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
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