How does puck js keep timer going in sleep mode?

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user156858 in reply to @Gordon

thanks for the clarification, as I said to fanoush I had the wrong idea about what type of sleep mode NRF_sleep() was, I'm only familiar with NRF SDK development in C so I was trying to understand what the puck was doing to apply it to my application.

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fanoush in reply to @user156858

I'm only familiar with NRF SDK development in C

for sleeping it calls sd_app_evt_wait
https://github.com/espruino/Espruino/blob/master/targets/nrf5x/jshardware.c#L2717
which should be as low power consumption as it can get without powering off

If you have high power draw like 0.5mA or 1mA it may be that you left something powered on like I2C,SPI,UART

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