i2c

  1. walterf25

    B4J Question MQTT Delay Time

    Hi Everyone, I am working on a project where I have a raspberry pi 4B where I have a b4j app running which communicates with a 32 channel Analog to Digital Converter we designed and built at work, the communication is via I2C protocol, this part works very well as far as I have been able to...
  2. walterf25

    B4J Question B4J App Slow on Raspberry Pi 4

    Hi all, I am working on a project for work, basically I am attaching a DAQ (Data Acquisition System) we designed with 4 ADCs that communicate with raspberry pi over I2C communication protocol. This all seems to work fine so far, I am able to communicate with each of the ADCs and collect data...
  3. moty22

    Share My Creation Doorbell using I2C EEPROM

    A doorbell for Arduino Uno or Nano interfacing EEPROM with I2C. The EEPROM 24C512 is 512Kbits and it can store up to 3 seconds wave file of 22.050KHz, 8 bits, mono. The Arduino reads the ROM bytes in a sequential read mode and stream each byte to the PWM generator at a rate of 22 KHz. The I2C...
  4. M

    B4J Question Using Raspberry Pi I2C with ADS1115 (Adafruit)

    Hello, I'm trying to communicate a raspberry pi 3 model B with ADS1115 through i2c communication, but it is not working. When I run an adafruit example in python, its works perfectly. Using and arduino Mega i can read what python example sends to ADS1115 and I tried to send the same commands...
  5. C

    B4J Code Snippet MCP9808 reading temperature

    Hello everyone, Here an example for using the MCP9808 sensor on a raspberry pi. This is only a code snippet, as it only read's the temperature. Not all the registers are implemented. Negative values aren't yet tested. This is a console application. Kind regards, Tim. *IMPORTANT UPDATE* The...
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