Recent Blog Posts

ILI9341_t3 Font Editor

Wojciech Sura (forum user spook) has made a very useful tool for creating and editing fonts for the ILI9341 display

Until […]

C64 SID Chip Replacement

Petros Kokotis developed a replacement for the ever popular SID chip (MOS Technology 6581/8580) using a Teensy 3.6.

The SID was a popular sound synthesizer chip from the 1980s used in the Commodore 64 computer.  Much to the dismay of many nostalgic computer enthusiasts, […]

Joystick Splitter

gdsports has made a joystick splitter that solves the problem of the Microsoft Xbox Adaptive Controller (XAC) ignoring the hat switch on the Logitech Extreme 3D Pro Flight Stick.

The splitter uses 2 Teensy-LC boards […]

Control Voltage to 1.2V Analog Input Pin

Often the question is asked, what is the simplest way to get modular synth control voltage (CV) into an analog input pin?

This simple circuit using only 3 resistors and 1 capacitor converts the -5V to +5V CV signal range to the 0 to 1.2V ADC input range.

For Teensy 3.2, 3.5 and 3.6, you would use analogReference(INTERNAL) to configure for the 0 to […]

PWM Tutorial by Bolder Flight

Brian Taylor of Bolder Flight has put together a great tutorial on Pulse Width Modulation (PWM).

PWM is commonly used to control servos and electronic speed controllers (ESC) and is useful for many projects.  This […]

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