Idea

Kevin Windrem avatar image
Kevin Windrem suggested

Additional tank/temp inputs on Cerbo GX

Cerbo has 4 analog inputs dedicated to resistive tank sensors and 4 analog inputs dedicated to LM335 temperature sensors. The GX Tank 140 provides 4 voltage or current based tank sensors. There is no expansion for temperature inputs. These analog inputs differ only in the pull-up/down and what the input is used for in software.

The GX Tank 140 inputs could easily be retasked in software to support temperature sensors. They have a mild (150 K ohm) pull-up which should be sufficient for the LM335 temperature ICs.

For the next hardware revision of Cerbo, I propose the 8 analog inputs be modified to support resistive, voltage and current tank sensors as well as temperature sensors, then in software, you can decide how many of each you use.

cerbo gxVenus GX - VGXtemperature
2 |3000

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