☑ Gy 521 Pull Up Resistor

Using gy 521 accelerometer gyro arduino forum. A pull up resistor is used to make the default state of the digital pin as high or to the logic level in the above image it is 5v and a pull down resistor does exactly opposite it makes the default state of the digital pin as low 0v.

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Rpi has a 18k pullup resistor on sda and slc already on board.

Gy 521 pull up resistor. While the connection between vcc and an input or output is the preferred method for using a pull up resistor the question arises as how do we calculate the value of the resistance require to ensure the correct operation of the input. Most breakout boards either have a pull down or pull up resistor to keep default at high or low. Using gy 521 accelerometer gyro 11 jan 25 2013 0409 am.

I dont want broke the board. But i havent undestand if are needed the pull up resistor on sda and scl. The pull up resistor value is 10 kilo ohm and the remaining components are 330 ohm resistor and led.

Raspberry pi zero i2c pull up gy 521. The 330 ohm resistor is connected in series to limit the current to the led. If i look at a photo of the gy 521 i can see two pull up resistors of 2k2 the black smd.

Could the resistors be the problem. The appropriate value for the pull up resistor is limited by two factors. Gy 521 breakout board pinout.

A good resistor value in sum would be around 5k on each line. If the resistance value is too low a high current will flow through the pull up resistor heating the device and using up an unnecessary amount of power when the switch is closed. Ground pin ad0 for the alternate address of 0x69 on the gy 521 the address pin has a pull up resistor to vcc.

The board will default to address 0x68. My gy 521 also has also a pullup resistor 22k on each line on board. Vcc the gy 521 board has a onboard voltage regulator therefore either 5v or 33v can be connected gnd ground pin scl serial clock line for i2c.

The first factor is power dissipation. Mpu 6050 gy 521 gy 521 module 3 axis gyroscope and accelerometer. The circuit diagram of the nand gate using 2 pull down resistors at the ips to the nand gate is shown below.

Calculating pull up resistor value. Click get code and copy it into a sketch. Active 2 years 3 months ago.

Ask question asked 2 years 3 months ago. Connect scl and sda to two gpio pins and configure those pins in the hardware tab. Some of those boards have a pull down resistor at ad0 address 0x68 others have a pull up resistor address 0x69.

Connect vcc to a 5v supply the gy 521 has its own 3v3 regulator connect gnd to ground. What is a pull up and pull down resistor.