String Theory

Preamble

Found a great source of information about using the String class in Arduino, in this article, The Evils of Arduino Strings, from Majenko‘s site.

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Move it to GitLab

Preamble

On June 3, whilst uploading some new code, I saw the banner on GitHub stating that MicroSoft had just completed a takeover agreement, and I promptly looked for an alternative.

Random VLC random clip player

Preamble

I needed a way to play random clips of random movies in a VLC playlist, in a random order (of a random length?)

Arduino Boards and Chipsets

Preamble

Which AVR ICs and Arduino boards should you develop for? Which pre-processor conditional directives are necessary?

Debug

Preamble

Whilst writing Audio Oscillator in AVR I realised that I needed some optional Serial.print() statements, that would only be used for debugging. I have used #if defined() statements extensively before (in the GhettoVaper, for example), but I came across this thread, Toggling Debug Code, which provided some useful insights for portable debugging headers.

Audio Oscillator in AVR

Preamble

Having tackled the AVR Timers and Interrupts to make a Noise Chip for the BOSS DR-110 in the article Noisey chips, I now feel confident to take on and answer this question on Stack Exchange, Program an ATtiny13 as an audio oscillator with variable frequency and pulse-width. The added bonus is that it can be used to create an Atari punk Console (APC)-esque device.

Initially I will use an ATmega328…

i-Box, Cricket Logo and Arduino

Preamble

I got an i-Box (v1) based robot for 100 baht. This robot is a PIC16C715 based device, with a dual motor driver, EEPROM serial memory and a comms IC, all mounted on a PCD a couple of inches square.

It has a number of variants, and brand names, such as:

• i-Box III
• Handy Cricket, hardware
• RoboCircle (3)(s)
• RoboBOX (3)
• GripCIRCLE
• etc.

These are essentially the same device.

It is quite difficult to locate any online information about the i-Box v.1, per se. Information on the i-Box III can be found online however,