The function is to read the data of any sensor/resistor/voltage into ESP32 via different pins (ADC for resistors). It will send data into Google Sheet with the use of Apps Script. With ESP32 connected ...

All in all, he has collected 72 controllers from five different manufacturers, and 46 of them have data sheets. For each controller, he tabulates maximum resolution, color depth, type of interface ...

Real-time feedback on an LCD display. Cloud-based storage of attendance data using Google Sheets. Hardware Requirements ESP32 microcontroller PN532 NFC module LCD display NFC ID cards Push buttons ...