5 ms·

> no ADC/DAC The arduino has a DAC? > no I2C Well, I'm out then. That's a big one.

• duskwuff 8y ago
  Arduino boards typically don't have a DAC, but it's a common enough feature in microcontrollers that I figured I'd mention its absence.
• jononor 8y ago
  Arduino Uno no, since that uses a chip that is over 8 years old. But a modern 8bit AVR which cost under 1USD in single units, like Attiny3214, has a DAC.
  • steve918 8y ago
    "like Attiny3214, has a DAC" and is also not supported by any Arduino libraries to my knowledge, even with additional board support packages.
  • jononor 8y ago
    For DAC and good Arduino support use the Teensy 3.x
• CamperBob2 8y ago
  You can bit-bang I2C easily enough, as long as none of your slave devices have an SMBus-style bus timeout feature. Might be a bit hard for an AVR-class CPU to keep up with those without some attention paid to performance optimization.