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projects:mees [2021/03/25 17:29] – [TODO for REV. B] trimen | projects:mees [2021/03/25 17:37] – [TODO for REV. B] trimen | ||
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SI7021 - relative humidity and temperature sensor\\ | SI7021 - relative humidity and temperature sensor\\ | ||
< | < | ||
- | M24M01-RMN6P - I2C EEPROM for calibration data storage\\ | + | M24M01-RMN6P - I2C EEPROM for calibration data storage\\ |
ESP8285 - main CPU with WiFi\\ | ESP8285 - main CPU with WiFi\\ | ||
Line 31: | Line 31: | ||
Find another temperature and humidity sensor\\ | Find another temperature and humidity sensor\\ | ||
Enlarge board & add better thermal isolation between CPU, gas sensors, and temperature sensor\\ | Enlarge board & add better thermal isolation between CPU, gas sensors, and temperature sensor\\ | ||
+ | --> currently this isn't an issue when the fan is unregulated\\ | ||
Add mounting holes\\ | Add mounting holes\\ | ||
+ | Add 4R7+1uF RC element to VDD of SGP40 and CCS811 sensor\\ | ||
+ | Add UART on board for particle sensors (HPMA115C0-XXX, | ||
+ | Add RF blocking inductor to VDDPA of ESP8285\\ | ||
+ | |||