https://devzone.nordicsemi.com/f/nordic-q-a/52841/twi-communicationHi Guys, I am using Si7021 I2C temperature sensor and I want to read the temperature value using nrf52840-DK. I connected the sensor to the 27,26 pin. I wanted to read the sensor value. Here is the initialization Here is the read function, en-USTelligent Community 13Fri, 04 Oct 2019 04:42:55 GMThttps://devzone.nordicsemi.com/thread/213288?ContentTypeID=1Fri, 04 Oct 2019 04:42:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:800239d9-6da5-4702-8a4a-f8eba1851368Vibhu<p>Thank You So Much awneil.</p> <p>It seems there should be some delay between the transmit and receive command which I have posted and making the last parameter true as you suggested did the trick.</p> <p>Now it is working.</p> <p>Thank You <span class="emoticon" data-url="https://devzone.nordicsemi.com/cfs-file/__key/system/emoji/1f642.svg" title="Slight smile">&#x1f642;</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/213130?ContentTypeID=1Thu, 03 Oct 2019 08:54:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:abaa0217-d115-4b04-9d13-3c139b371043awneil<p>Documentation for&nbsp;<a class="el" href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/group__nrf__drv__twi.html#ga6c83eac2d358bc8fb5b53c53f22506b6">nrf_drv_twi_tx</a>:</p> <p><a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/group__nrf__drv__twi.html#ga6c83eac2d358bc8fb5b53c53f22506b6">https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/group__nrf__drv__twi.html#ga6c83eac2d358bc8fb5b53c53f22506b6</a></p> <p>The <strong>no_stop</strong> parameter can be used to disable the STOP condition - ie, to give you a repeated START on the next transaction.</p> <p>Also take a look at&nbsp;<a class="el" href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/group__nrf__drv__twi.html#ga44215084d42d6a29aa4044c3c2792fc0">nrf_drv_twi_xfer</a>&nbsp;- which can do the two transactions for one function call:</p> <p><a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/group__nrf__drv__twi.html#ga44215084d42d6a29aa4044c3c2792fc0">https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/group__nrf__drv__twi.html#ga44215084d42d6a29aa4044c3c2792fc0</a></p> <p></p> <p><img alt=" " src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/communityserver-discussions-components-files/4/1541._5F00_Insert-Code-_2D00_-Nordic-2.png" /></p><div style="clear:both;"></div>