03:Step Sequencer Part 2 - TheTechnobear/MusicalHacks GitHub Wiki
In this episode I extend the sequencer from the last episode to use a MCU controller In particular the Arduino Nano (though you could use others)
Other important topics, such as voltage supplies and protecting the MCU are also discussed.
Schematic for step sequencer
Protecting MCU inputs
https://www.digikey.com/en/articles/protecting-inputs-in-digital-electronics
Level converters
https://www.sparkfun.com/products/12009
Voltage Regulators
https://en.wikipedia.org/wiki/Voltage_regulator
Microcontroller - MCU
Whilst I used an Arduino nano, any MCU could be used, including teensy. also something like an Axoloti could also be used. BUT take care of voltage levels as discussed in this episode.
arduino nano : https://store.arduino.cc/arduino-nano official pinout for arduino nano : https://content.arduino.cc/assets/Pinout-NANO_latest.pdf
Installing Arduino IDE
https://www.arduino.cc/en/Main/Software
https://www.arduino.cc/en/Guide/HomePage
note: I use the desktop IDE, and have no experience of the web-editor version :)
ICs used
The ultimate source of information is the IC datasheets. these are excellent - not only do they have the specifications and pin outs, but they often contain some great examples.
please note.. these ICs are made by different manufactures, the following are therefore examples only.