Code

Code: https://github.com/liutyi/arduino-humidity-sensors-test/tree/v7

Key feature.

  • 76 sensors
  • Stable operation
  • RTC added
  • SD files with correct timestamps

Tests

Hardware

  1. Arduino Mega (keyestudio)
  2. 480x320 LCD with SD
  3. Battery 2500 mAh
  4. Battery charging circuit Type-C
  5. Voltage converter (3.7 - 5v)
  6. Voltage converter (5v - 3.3v)
  7. i2c level converter (5v - 3.3v)
  8. Real-Time Clock DS3231
  9. 6 multiplexors TCA9548A (alternative)
  10. 76 sensors



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