Beacon wake up , Advertise, sleep on Switch Press

RE: Beacon wake up , Advertise, sleep on Switch Press

Ole Bauck — Wed, 20 Jul 2016 08:35:58 GMT

"nrf_delay_ms" declared implicity: you need to include nrf_delay.h in the file:

#include "nrf_delay.h`

The enumerated type mixed with another type warning was my fault, use this code instead:

nrf_gpio_cfg_sense_input(BSP_BUTTON_0, NRF_GPIO_PIN_PULLUP, NRF_GPIO_PIN_SENSE_LOW);

It is exactly the same (see the definitions for NRF_GPIO_PIN_PULLUP and NRF_GPIO_PIN_SENSE_LOW).

RE: Beacon wake up , Advertise, sleep on Switch Press

CT_Engr — Tue, 19 Jul 2016 15:43:30 GMT

Your answer was perfect. Thank you. I took the main.c code and started to use it as an example... then realized it was already fully working. Thanks for not just suggesting idea, but executing a working solution.

We have updated this now to do our Major/Minor updates on button press and other changes needed and its all good :)

I have 1 question to follow up.

We are getting some compile time warnings and I suspect I have an ARM linker issue. Can you look at the attached screen shot and suggest the right way to remove these warning?

www.dropbox.com/.../SNAG-0003.jpg

Thanks J

......\main.c(146): warning: #223-D: function "nrf_delay_ms" declared implicitly nrf_delay_ms(100); ......\main.c(149): warning: #188-D: enumerated type mixed with another type nrf_gpio_cfg_sense_input(BSP_BUTTON_0, GPIO_PIN_CNF_PULL_Pullup, GPIO_PIN_CNF_SENSE_Low); ......\main.c(149): warning: #188-D: enumerated type mixed with another type nrf_gpio_cfg_sense_input(BSP_BUTTON_0, GPIO_PIN_CNF_PULL_Pullup, GPIO_PIN_CNF_SENSE_Low); ......\main.c(151): warning: #188-D: enumerated type mixed with another type nrf_gpio_cfg_sense_input(BSP_BUTTON_1, GPIO_PIN_CNF_PULL_Pullup, GPIO_PIN_CNF_SENSE_Low); ......\main.c(151): warning: #188-D: enumerated type mixed with another type nrf_gpio_cfg_sense_input(BSP_BUTTON_1, GPIO_PIN_CNF_PULL_Pullup, GPIO_PIN_CNF_SENSE_Low);

......\main.c: 5 warnings, 0 errors

RE: Beacon wake up , Advertise, sleep on Switch Press

Ole Bauck — Mon, 18 Jul 2016 12:34:40 GMT

You can set the device to advertise for 1 second. When you get the BLE_GAP_EVT_TIMEOUT event from the SoftDevice (after 1 second of advertising) you can enter SYSTEM OFF sleep mode with GPIO wakeup. When the system wakes up from SYSTEM OFF sleep mode it will do a reset and hence start advertising for one second again. See this main file used for the ble_app_beacon example in SDK: main.c

If you don’t want to reset when you wake up you can enter SYSTEM ON sleep mode (draws a couple of uA more than SYSTEM OFF sleep mode) with sd_app_evt_wait(). Configure gpio to give you interrupt on change (see pin_change_int example in SDK for this) and start advertise again for 1 second.