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