theacodes

void main() {
  for (int i = 0; i < 5; i++) {
    print('hello ${i + 1}');
  }
}

theacodes

#include <cstdint>
#include <cmath>

/*
  Examples for converting between note numbers, frequencies, and Volts/octave.
  
  If you're unfamiliar with MIDI note numbers, they are integers that
  correspond to semitones (half steps). For example, MIDI note 12 is
  C1 (16.35 Hz) and MIDI note 24 (twelve half steps higher) is C2 (32.70 Hz).
  

theacodes

FutureBuilder(
  future: future,
  builder: (BuildContext context, AsyncSnapshot<String> snapshot) {
    double width;
    switch(snapshot.connectionState) {
      case ConnectionState.none:
      case ConnectionState.waiting:
      case ConnectionState.active:
        width = 0;
        break;

theacodes

# (c) 2019 Alethea Flowers
# Licensed under the MIT license.

"""A helper library to setting a DAC to direct voltage values.

That is, instead of setting a 16-bit integer value you can set the DAC to a
floating-point voltage value.

This requires information about the real-world DAC output and any output
scaling - this is called **calibration** data. 

theacodes

# (c) 2019 Alethea Flowers
# Licensed under the MIT license.

"""A driver for the Analog Devices AD5689(R) 16-bit Digital to Analog Converter.

AD5689 wiring expectations (TSSOP-16 package):

* 1: AD5689 = Vref, AD5689R = NC (uses internal reference)
* 2: NC
* 3: Analog output A

theacodes

# Copyright 2019 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,

theacodes

Keybase proof

I hereby claim:

• I am theacodes on github.
• I am theacodes (https://keybase.io/theacodes) on keybase.
• I have a public key ASAYLG-IxCSWNo0Kdev6Z4K60rWKN3-qmJMPSPJ6H_DXpAo

To claim this, I am signing this object:

theacodes

Write our robot code in Python on the Raspberry Pi.
We'll use the Arduino as a daughterboard. It'll handle I/O.
Use a serial protocol to communicate between the 2.

Raspberry Pi (Python) <-> USB Serial <-> Arduino (Firmware)


How do we get there?

1. Write a Arduino sketch to act as our firmware. This will receive serial commands and send back data.

theacodes

#!/usr/bin/env python
#
# Copyright 2007 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#

theacodes

def session_test(session):
    session.interpreter = 'python2.7'
    session.install('-e', '.[grpc]')
    session.install('pytest')
    session.run('pytest', '-x', 'google')