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Your ADC example is exactly why telemetry is classified as Level 0, 1, 2, etc. To carry your example forward, say the raw ADC data is L0, and the filtered ADC number is L1. Set the log level to L1, and you get only the filtered ADC readings. So maybe the better approach than logging all the raw data...

One additional thought. To understand what the EMS is doing via the logs, log entries need to either be generated at fixed time intervals, or each entry needs to be timestamped. Timestamping is an absolute necessity if entries are generated asynchronously.

A common approach that is used in satellite telemetry is to divide data into multiple levels. Level 0 data is raw, unprocessed data, generally binary states and ADC/DAC counts. Level 1 is minimally processed data, for example ADC/DAC counts having been converted to engineering/scientific units. Leve...

I'm not sure if this is the right place for this, but I saw a comment earlier in this thread about datalogging. The earlier comment was to use either USB or SD storage. There are three bits of code that need to be written to implement a data logging solution: the data storage format, the file struct...

I've just come across FreeEMS - my thoughts exactly! Even though I have extremely limited time due to a wee one, I'd like to contribute what I can. I've started by reading through the Serial Protocol 0.5 Draft (11 Nov 2008), and some things really jump out at me. Not having been part of the initial ...