Add Total Dissolved Solids Meter Driver #500
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This will provide a package to calculate the TDS and Electrical Conductivity from common TDS/EC Meters. Meters sold from various vendors: * https://wiki.seeedstudio.com/Grove-TDS-Sensor/ * https://www.dfrobot.com/product-1662.html * https://www.cqrobot.com/index.php?route=product/product&product_id=1122
s-fairchild
commented
Jan 4, 2023
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| // formulas were converted from source wiki Arduino example: http://www.cqrobot.wiki/index.php/TDS_(Total_Dissolved_Solids)_Meter_Sensor_SKU:_CQRSENTDS01#Arduino_Application | ||
| // The TDS value is half of the electrical conductivity value: electrical conductivity / 2 | ||
| return 133.42*compV*compV*compV - 255.86*compV*compV + 857.39*compV |
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I couldn't find any documentation on these floats to convert from the ADC voltage to tds. The same formula is used across the rebranded boards, I assume they must be specific to the board/probe.
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Hi @deadprogram, is this of any value to the project? If not just let me know and it's no problem to close. |
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This will provide a package to calculate the TDS and Electrical Conductivity from common TDS/EC Meters. Meters sold from various vendors: