@jmarcelino Any update on the fn to enable LOW power LTE option?

@Andy_N said in Power consumption / wifi-information storage machine.deepsleep(): OSError: the requested operation failed We just mitigated this through [1] by invoking lte.deinit() with the "reset" operation like lte.deinit(detach=False, reset=True) [1] https://github.com/hiveeyes/hiveeyes-micropython-firmware/commit/ec7c80e1219fb119c2881a0019cecdfad220f29f

@StefanoF I made a few more tests with the most recent code I have posted (which is the initial goertzel code). a) test for phase jitter. Instead of reading the ADC, i just supplied a artificial 50Hz sine with an amplitude of 50 and an offset of range/2 into the algorithm. Result: constant 49.99993, which means that there is no phase jitter. b) I connected the interface network, but not the sensor. Result: Output values between 0.005 and 0.03. Since the output value of 1Veff is about 240, that is equivalent of ~60µVeff, or about 1 mA through the sensor. c) connect a battery with 1.5V to the input. Result: values of about 0.5 -> Noisy battery! d) connect the SCT013 with no current. Value of 0.04 +/- 0.03. That's about 160µVeff of 3 mA (or 0.5 W at 230V) through the sensor. So it looks as if the sensor picks up some noise, but still ok. e) Using an external ADC (mcp3201). Result: values of 0.05. Slightly worse than using the internal ADC. Lesson learned: I will stick with the initial solution. The challenge is to proper shield the interface network and the cable from picking up unwanted noise.

@thomand1000 Have been looking at power consumption and have similar issues to what is reported here have 200mA in main program then 190 to 150 mA for 30 sec before dropping to deep sleep. In first cycle deep sleep current is 200 micro amps. In subsequent cycles the deep sleep current is 30 mA. Have tried turning everything off without change. Have same issue with LTE but don't have a SIM. Agree that things should not be instantiated by default but as required.

@cduplouy I am also getting around 15mA during deepsleep. I tried with 3.3v and 3.7v using resistor but then it is not sufficient power for the pycom to run.

Haven't tried yet, but assume the file has to have an initial json string first?