i2c

Hi there, I wish to connect multiple i2c chips together on the same PCB board, these chips are DS1307, DS1621 and AT24C256. My question is, do I need to put 6 x 4.7k pull-up resistor (2 resistor / chip) or 2 x would be Ok for those three chips as shared? Also what will happen if I would...

Hello all, I have a daughter board that resides about 1m far from main board, this daughter board contains buzzer and some ICs. I am already worried that I2C won't work properly over this long distance and now that I added PWM, I am afraid that will disturb I2C and lose connection between the 2...

I have a Arduino uno board connected with PCA9698(I/O expander) through i2c communication. Controlling if input and output were working correctly. The data pins from the PCA9698 is connected to the 24v DC motor driver(BTS7960) and also sensors(PROXIMITY sensors). While reading the sensors there...

Hello, I tried to breakout the BNO085. I used a known good design from Adafruit (attached the schematic). Now unfortunately it doesn't work. I written software for the Adafruit board and it works fine. Then I replaced the Adafruit board with my breakout board ("schematic_not working" in the...

Hi! I am new to FPGAs and I am working on a project that involves an array of I2C sensors. I need to record real-time data from all sensors at the exact same time. For now, I am just trying to plan and understand more about how I would do this with an FPGA. For an FPGA such as the LCMXO2...

I have used PCA9615 differential I2C bus driver in one design to extend the I2C bus over CAT5 cable. (datasheet https://www.nxp.com/docs/en/data-sheet/PCA9615.pdf) The design has been done according to the datasheet recommendation and with the help of a reference design of a popular open-source...

Hi all I was trying to make my 16x02 LCD+I2C module work. I failed. This is my LCD: LCD+I2C PCF8574T is written on the I2C module chip. I've tried two different pin configurations of the I2C module in the sketch however nothing still appears on the monitor (yes, I've tried to adjust the...

hello everyone. can i use a sensor with i2c and a i2c debugger just to see if it's working? and how? (without the microcontroller) for example i attached a photo. thx!

I started following this tutorial here: https://how2electronics.com/pulse-sensor-with-oled-arduino/ which uses a pulse sensor, buzzer and a 0.96" oled display and SSD1306 drivers. Except their display is different. Im using this one...