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arduino-uno-r3

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In metro cities we can see you a huge rush at shopping malls on holidays and weekends. This becomes even more when there are huge offers and discounts. Nowadays people purchase a variety of items and put them in the trolley. After total purchasing one should approach counter for billing purpose. By using barcode the cashier prepares the bill whi…

  • Updated Dec 12, 2019
  • TSQL

Program to demonstrate the usage of configuration files as separate entities from the program, using an SD Card with a 3.5" TFT LCD Touchscreen Display (using ILI9486 Driver), Arduino UNO R3/R4 and MCUFRIEND Library

  • Updated Jul 2, 2024
  • C++

Arduino library for the PZEM-004T V4.0 (100A) Energy Monitor, compatible with Arduino UNO R3, R4, Nano, Mega, and other Arduino boards. This library enables easy reading of voltage, current, power, energy, frequency, power factor, and alarm status using the Modbus RTU protocol.

  • Updated Jun 10, 2026
  • C++

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