Closed tcpipchip closed 3 years ago
What board are you using? How are you measuring the power?
It could be UART. Look for CONFIG_UART_
in build/zephyr/.config
and make sure it's all off (what you specify in prj.conf
may not be what you're getting).
samples/boards/nrf/system_off
shows how to get the UART device for the console and set it into a low-power state, but that assumes that the UART is available. It sounds like you're trying to exclude it. That should result in the lowest possible power state for on-board peripherals, but it wouldn't for other devices like I2C sensors which would have to be put into a low-power state explicitly even if they're not being used.
The CCS811 is a pretty high-power device, so if it's powered up that could be a factor.
Good morning @pabigot (Peter)
I am using the EBYTE E73. Using Amperimeter and put it the cable in serie with E73 power (VCC), mayBE is this my fault)
This is my .config
I am using BME680
Based on the config UART is disabled. It sounds like you're measuring the power consumption of the entire board, which would include any circuitry on the E73 module plus whatever it's connected to (BME680, LEDs, any other current drains). I don't have any other advice.
@pabigot
The e73 is not connected to nothing now! And i am getting 100uA! Just running BLE Advertising...
The only very strange stuff was that i had to disable the DC-DC to make the e73 runs my app. Is that a problem ?
I am using a CR coin battery connected to e73 vcc
No problem to me send for now my project for you see inconsistences!
Please Send me a low energy example that really compiles! Thank you!
I think that you need to disable uart in device tree, too. Add overlay like this:
&uart0 {
status = "disabled"
};
I wouldn't expect devicetree to have any effect since the uploaded config shows all UART drivers are disabled.
@tcpipchip Please test energy use with the Nordic system-off demo. You should be able to measure multiple power levels, including one where everything associated with the MCU is disabled except the ability to restart on a button press. If in that mode you still see current draw over, say, 10 uA, then it's your board, or failure to configure certain pins to avoid current drain.
Please follow up with measurements of power consumption in each of the two active levels, the long sleep, and the deep sleep.
Hi team
Thanks for all support that i got here!
you are the best
Well, something is Wrong on E73 that i dont know! DCC,DCC1, DC-DC
i aborted
I will use the SDK 16 (NORDIC) on a CHINESE beacon that i got!
Thanks again!
I lost 80 hrs without success!
I back to the ZEPHYR, now with U-BLOX NINA B112.
Now is working nice :)
Dear
I am using the NRF52832, using the following prj
I would like to know how to disable the UART.
Maybe UART is my CONSUMPTION problem!
Thanks!