https://devzone.nordicsemi.com/f/nordic-q-a/39948/sd_ble_gatts_value_setnrf52832. SDK14.2 Segger ES V3.34a I would like to send a struct to a characteristic value, typedef struct { int8_t test1_array[30]; int8_t test2_array[30]; uint16_test3_array[30]; uint32_t test4_array[30]; }data_t; maybe using... sd_ble_gatts_value_seten-USTelligent Community 13Fri, 02 Nov 2018 14:21:54 GMThttps://devzone.nordicsemi.com/thread/155786?ContentTypeID=1Fri, 02 Nov 2018 14:21:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9564a6d1-dd86-4855-abba-06a7c63d9418Jared<p>Hi</p> <p>The&nbsp;<span>sd_ble_gatts_value_set function() takes in a ble_gatts_value_t pointer which has a pointer p_value to a uint8_t array. You can therefore typecast your struct to an uint8_t array and send it with the sd_ble_gatts_value_set() function. The attribute value offset parameter can be used to specify which parts of the attribute that you want to change. This can be useful if you only want to change a certain part of the characteristic.&nbsp;</span></p> <p><span>Documentation:&nbsp;<a href="http://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.s132.api.v0.9.0%2Fgroup___b_l_e___g_a_t_t_s___f_u_n_c_t_i_o_n_s.html&amp;cp=2_3_1_1_6_2_0_4_4_10&amp;anchor=ga2760c51ea71853bd74e2e7e7117ef52a">http://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.s132.api.v0.9.0%2Fgroup___b_l_e___g_a_t_t_s___f_u_n_c_t_i_o_n_s.html&amp;cp=2_3_1_1_6_2_0_4_4_10&amp;anchor=ga2760c51ea71853bd74e2e7e7117ef52a</a>&nbsp;</span></p> <p><span>Jared&nbsp;</span></p><div style="clear:both;"></div>