GitHub

Arduino Password Entry System with Keypad and LCD Display

This project is an Arduino-based password entry system that uses a 4x4 keypad for input and a 16x2 I2C LCD display to show messages. The system allows users to input a password, which is then ...
GitHub

Releases: AnoopJolly/Arduino-Password-Protected-Door-Lock-Keypad-I2C-LCD-LEDs-

You can create a release to package software, along with release notes and links to binary files, for other people to use. Learn more about releases in our docs.
note

Arduino UNO R4をI2Cのスレーブモードで動作させるときの注意点

ラズパイやArduinoでセンサーなどを使うときにI2C通信がよく使われています。この場合、ラズパイやArduinoがマスターで、センサーがスレーブになって、マスターからスレーブのデータを書き込んだり、データを読み出したりします。 センサーなどの代わりに ...
elektormagazine

Programming the Arduino in BASIC - Using the Shield LCD Keypad Part. 2

The ARDUINO IDE associated with the ARDUINO board uses specific numbering, assigning numbers from 0 to 19 to digital pins 0 to 13 and numbers A0 to A5 to analog pins. GCBasic directly manipulates the ...