https://devzone.nordicsemi.com/f/nordic-q-a/35175/hello-my-project-is-not-going-well-i-m-in-trouble-please-help-me-againHello, my project is not going well. Trouble you Please help me again First of all, my English is not very good. I&#39;m sorry. Can you provide an ideal sample code for me? My requirement is a broadcast transmission data (8K byte/s). Multiple devices receiveen-USTelligent Community 13Thu, 07 Jun 2018 11:38:15 GMThttps://devzone.nordicsemi.com/thread/135132?ContentTypeID=1Thu, 07 Jun 2018 11:38:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f6db17db-1597-439f-82c9-cae9d9386ecfJ&#248;rgen Holmefjord<p>Hi,</p> <p>You first needs to decide on what protocol to use.&nbsp;</p> <p>Some alternatives are listed below:</p> <ul> <li><a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.0.0/esb_users_guide.html?cp=4_0_0_5_1">ESB</a>&nbsp;is a proprietary protocol which support&nbsp;star network topology with typically one Primary Receiver (PRX) and up to 8 Primary Transmitters (PTX). You can find <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.0.0/esb_examples_ptx_prx.html?cp=4_0_0_4_8_0_0">examples</a>&nbsp;in the SDK&nbsp;</li> <li><a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.0.0/gzll_02_user_guide.html?cp=4_0_0_5_2">Gazell</a>&nbsp;is a similar but more advanced protocol than ESB. You can find <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.0.0/gzll_examples_device_and_host.html?cp=4_0_0_4_8_1_0">examples</a> in the SDK.</li> <li>ANT is another proprietary protocol, developed by dynastream, that can support broadcasting. You can find <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.0.0/ant_examples_broadcast.html?cp=4_0_0_4_0_3">examples</a> in the SDK.</li> <li>BLE can support broadcasting to multiple devices using advertising and scanning. There are a large list of both <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.0.0/examples_ble_peripheral.html?cp=4_0_0_4_1_2">peripherals</a> (advertising) and <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.0.0/examples_ble_central.html?cp=4_0_0_4_1_0">central</a> (scanning) examples in our SDK.</li> <li>Multiple mesh protocols, like <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk/dita/sdk/mesh_sdk.html?cp=4_1">Bluetooth mesh</a>, <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.thread_zigbee.v1.0.0/thread_main.html?cp=4_2_0_1">Thread</a>, and <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.thread_zigbee.v1.0.0/zigbee_main.html?cp=4_2_0_2">ZigBee</a> can be used for broadcasting data. These protocols might be a bit overkill for your requirements.</li> </ul> <p>It is up to you to choose the correct example for your application and adapt it to your requirements. We cannot give you any &quot;ideal sample code&quot; that is your entire application.</p> <p>Best regards,<br />Jørgen</p><div style="clear:both;"></div>