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After the release of nRF52840 Engineering B (nRF52840-QIAABB) we have received several inquiries about the difference between Engineering A (nRF52840-QIAAAA) and Engineering B layouts. One reason for the inquiries is that after swapping Engineering A with Engineering B customers experienced that the radio stopped working. The symptoms being that everything but the radio seemed to work in their application. While this is highly unfortunate, it is actually expected because there was a vital design change in...

Hello,I am Ilya from Space-O, Russia.We are helping Enterprises generatemore funds by automation of theirroutine daily processes with IoT/smartsolution and Mobile apps. Also helpingmature Startups with the delivery oftheir Products. Contact me if you wantto develop the custom Hardwareelectronic device, complex IoTsolution or Enterprise-level Mobileapp.# Tags of core specialization areas:Custom PCB design, Enclosure, Firmware, BLE/iBeacon, Native iOS & Android Mobile apps, Apple Watch, Wearables...

In mid-2017, I came across this project by James Munns. It essentially wraps the C SDK for nRF52 development boards, and provides bindings that can be called from Rust. James gave a talk to the Rust DC Meetup, remotely over video conference. This talk inspired me to buy a couple of nRF52 dev boards.I'd like to announce that here, in Nordic's official channels, because I'd like more embedded developers to become aware of it. Rust is a language that has the ability to compile down to native code with zero r...

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Hi,I'm using SDK v14.2 and s112_5.1.0 for nRF52810 basing on the ble_app_uart example. Now we use the uart to communicate with external MCU. Also we want to close uart to save power when there is no data transmitting. I have used the BSP module to configure a gpio to control the UART, enable the UART when the gpio level is low, disable the UART when the gpio level is high. But if I enabled or disable UART in the bsp_event_handler, it couldn't be successful. Is there any problem with the function? Could yo...

Hai,We are trying to implement BLE HID Keyboard application using NRF51822. but we are facing the below issues with a windows 10 system acting as the central: 1. when reset the nrf51822 it is not able to reconnecting the earlier paired. (we have to remove the device in the central system and pair again to be able to connect) This is a major issue for us. 2. the central automatically awakes as soon as it goes to sleep when nrf51822 is connected to it. 3. we are unable to send the data to the central after ...

Hi, I have typical Ble UART app with SAADC measuring temp every 10 seconds. It should work 24/7 and save to sd card. I initiate and mount the sd card file at boot and then every time the buffer is supposed to be save to file then I open it -> write ->close. It is allways the same file for 24 hours.However when I boot the device and leave it to collect data to buffer and then save to sd card (on spi freq- 2Mhz) then after roughly 25 minutes the save to file does trigger 0 bytes written.my sd save and...