Atmega328p with ADXL345

Discussion in 'Embedded Systems and Microcontrollers' started by re4mat0r, Jun 21, 2016.

  1. re4mat0r

    Thread Starter New Member

    Jun 21, 2016
    Hi. I am trying to build a custom sensor board to connect several sensors to Atmega328p microcontroller.

    If anyone can help me and look to the schematics, maybe point some errors, I would really appreciate it.

    It is ADXL345 connected to Atmega328p, also a slot for DS18B20 digital thermometer. I have several pads connected to control LEDs with PWM and one pad for interrupt input.

  2. rubidium

    New Member

    Jun 21, 2016
    Generally speaking, the interconnections look sensible, but depending on what Vcc is, you may have a logic level mismatch between the Atmega328p and the ADXL345. Also, I would add a 0.1uF bypass close to the Vcc pin on the Atmega328p. Finally, don't you want to have a 3x2 ICSP header in order to program your MC?