How to set curr_range to more than 1000uA?



  • When I'm trying to set the current range to more than 1000uA, I get an invalid current error. Unfortunately, I couldn't find in the documentation how to increase it to higher values. I tried 1500uA and 1.5mA and neither work.

    Thanks in advance.



  • @Babak

    With the default hardware and hardware there are four current ranges +/- 1, 10, 100 and 1000 uA. So +/-1000uA is the maximum allowed current range. It is possible to change this but it requires a hardware modification and firmware modification. You won't be able to set higher than 1000uA without these changes. You would need to make these modifications yourself. There are some forum notes on increasing the current range here http://forum.iorodeo.com/topic/67/increasing-current-ranges-to-detect-ma The firmware modifications can be enabled by uncommenting the the #define CURRENT_VARIANT_MILL_AMP and commenting the #define CURRENT_VARIANT_MICRO_AMP in the ps_hardware_variant_defs.h file https://github.com/iorodeo/potentiostat/blob/master/firmware/libraries/potentiostat/ps_hardware_variant_defs.h You then need to reflash the firmware.


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