https://devzone.nordicsemi.com/f/nordic-q-a/81553/what-is-the-maximum-number-of-characteristicsHello. I am developing using nrf52832 (S132 v7.0.1, SDK v17.0.0). I have a question about the maximum number of characteristics. I searched DevZone for the same question, but the numbers were different. Perhaps it is possible to set the upper limiten-USTelligent Community 13Tue, 09 Nov 2021 14:17:41 GMThttps://devzone.nordicsemi.com/thread/338206?ContentTypeID=1Tue, 09 Nov 2021 14:17:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:40736f3f-e882-4859-aa6f-6e7aaf68006fAmanda Hsieh<p>Hi,&nbsp;</p> [quote user=""]I am developing using nrf52832 (S132 v7.0.1, SDK v17.0.0).[/quote] <p>Please be aware that&nbsp;<span>SDK v17.0.0 is replaced by <a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/index.html">v17.0.2 for bug fixing</a>.&nbsp;</span></p> [quote user=""]I have a question about the maximum number of characteristics.[/quote] <p><span>Generally, there are no limits in terms of service, characteristic, or descriptor counts.&nbsp;The only limit is the memory available for the attribute table.&nbsp;You could increase the <a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/group__nrf__sdh__ble__config.html#ga88fee7429b8beaee58eb0e270a99c82a">NRF_SDH_BLE_GATTS_ATTR_TAB_SIZE</a> in sdk_config.h. Note that when you increase the&nbsp;NRF_SDH_BLE_GATTS_ATTR_TAB_SIZE you would also need to increase the softdevice&#39;s allocated memory in the project setting (the start address of RAM for application).&nbsp;</span></p> <p>Regards,<br />Amanda</p><div style="clear:both;"></div>