This post is older than 2 years and might not be relevant anymore
More Info: Consider searching for newer posts

High power consumption with I2C G-sensor

We are using 51822 through I2C to get G-sensor buffer, every 560ms ( sample every 20ms, buffer for 28), then execute for step counter calculation, which should not consume much power. But the current measurement seeing, peak@4mA, rise to peak and down period last 150ms? sleep is working, but not sure why it took such long time to do so and peak @ 4mA? see picture below image description

we use twi_sw_master reference code image description

image description

Parents Reply Children
No Data
Related