Radio Low power

[John henrry]

Hello  Im new here.

Im test Radio : Low power

When i push button --> wake up and send packet, after send packet, it sleep.

can you help me? thank you.

have a good day .

[awneil]

Help you with what exactly?

• Are you referring to an SDK example?
• Do you have something, but it's not working?
• Are you asking how to get started?
• other?

We can't read your mind!

[John henrry]

Sorry my english not ok.

  - I want to comunication 2 nRF51822 ( radio).

(1) nRF51822 ( I use send data)

(2) nRF51822 ( I use Receive data)

Normal (1) sleep mode. when push button (1) wake up and send data --> (2), after send data,(1) sleep.

Thank you.

[Simonr]

Hi

First of all, the nRF51 series are not recommended for new BLE products if that's what you had in mind, as their SoftDevices and SDKs are not being updated anymore. Please consider checking out the nRF52810/nRF52832 instead, as we update the firmware for these devices regularly.

Depending on how much data you want to send, the ble_app_beacon example could be used to send up to 30 bytes. You'd have to configure the chip to wake up upon button press, and immediately go into deep sleep mode when the advertising is done, but it would be a good starting point.

As for the central, most of our BLE central examples would do what you describe. You'll have to set them to scan constantly to catch any advertisements made by the peripheral device.

Due to the summer holidays in Norway, our support team is understaffed this week, and delayed replies must be expected. Sorry for the inconvenience!

Best regards,

Simon

[awneil]

Simonr said:

the nF51 series are not recommended for new products

So that's changed, then?

https://devzone.nordicsemi.com/f/nordic-q-a/30256/nrf51822-for-new-design/119955#119955

It used to be just that they were not recommended for new BLE products:

https://devzone.nordicsemi.com/f/nordic-q-a/30256/nrf51822-for-new-design/187356#187356

[awneil]

John henrry said:

Sorry my english not ok

Your English is fine - there was just not enough information in your post.

John henrry said:

I want to comunication 2 nRF51822

As Simonr says, that's rather an old product - do you have a specific reason for starting with that?

Do you specifically want to use BLE (Bluetooth Low Energy), or would a proprietary radio protocol be OK for your application?

With BLE, one of your devices would need to be a Central (presumably number 2?) and the other (number 1?) would be a Peripheral.

This is the standard BLE architecture - not specific to Nordic or nRF51.

https://learn.adafruit.com/introduction-to-bluetooth-low-energy/gap

https://www.nordicsemi.com/Get-Started

https://devzone.nordicsemi.com/nordic/short-range-guides/b/getting-started/posts/introduction-to-bluetooth-low-energy-and-ble-devel