I am working on the proj that needed 2 MCU and nrf51822 work as slave.
I would like to know any ref on how to firmware upgrade on board without external tool?
We're looking for a Nordic nRF51822 based low profile/small USB dongle that we can use for our iBeacon software.
It would need to come complete with casing and the ability...
Hi all,
i want to establish connection between two threads in cmsis-rtos, can i use
1) semaphore to do this?
2)message queue should be used or any other ipcs can be...
Hi,
I have two CPU in our product. (STM32F2 and Nordic nrf51422).
I use serialization function to link those two CPU(refer to ble_s110_serialization sample)
But I find...
Hi,
My behavior is as follows
Turn on my device(use 51422) and advertising(2 Service and 3 Characteristic)
Turn on my cell phone(Samsung Note3),scan my device...
Hello:
I used analog IIC write MPU6050. Again after power download programs, mpu6050 can run up there ACK response. But the debug will not run. Simulation IIC because no...
Hello!
How can I communicate with my nRF24L01+ and nRF51822 at the same time. I can set up same channel, CRC-mode and I don't use ESB. But what about address? How do I set...
Hello Nordic Technical Support Team,
I'm developing a low-power product and considering using the nPM1300 PMIC. I have some questions regarding the system design:
Can...
Hello,
I have a firmware that sends every 15 min a packet to nRFCloud using nrf_cloud_coap_json_message_send().
The code is working great most of the time : hundreds of...
spim2、ncs2.6.1
I used SPIM2 to send the string "Hello, SPIM!" and receive data of the same length.
However, on the logic analyzer, I can only see the transmitted signals...
I have two projects, project MQTT, that was built around the Secure MQTT Sensor/Actuator sample and project CRYPTO, that was built around the Crypto AES-CCM sample . I am...
I am trying to build using a custom board and 2.9.1, but am getting these errors:
My dts looks like this:
I have the width specified. Much of this is over...
Dear support i have two problems,
In ncs 2.6.1 i get: error: '__device_dts_ord_DT_N_NODELABEL_red_led_P_gpios_IDX_0_PH_ORD' undeclared here (not in a function) in the...
Hello, I can commission bulb and switch pass, then I refer this link( acl and bind ) to write ACL and binding both, eventually I can use switch to control bulb!
But I have...
Hi.
We have a device connected to Azure IoT Hub with telemetry interval set to 10 min and on interupt. Tried changing interval to every hour, but then it looses connection...
I've tried the following with the Quick Start app v1.2.0, v1.1.0 and v1.0.1. The log below is from v1.1.0, if I recall correctly. All logs are about same. Programmed the Asset...
Hi,
I am analyzing the issue that the BLE module can maintain a relatively short connection distance. Besides the transmission power and frequency offset, I also take...
Hi all,
I'm trying to integrate joiner into my project, here's my goal:
We will start a device as our commissioner, and while it is active, we will start the other devices...
Hello!
I have designed a custom board with the nRF5340 , powered at 1.8V. I am able to program the chip successfully, but after the firmware is downloaded (Zephyr RTOS,...
I'm developing a small IoT device that needs to retrieve and transmit its location upon pressing a button. While testing the modem using AT commands, I can consistently retrieve...
Hello,
A quick question about using an nrf9160 (+ sdk 2.5 - modem 1.3.5)
When I activate the following parameters: # LTE-M (LTE-CatM1) CONFIG_LTE_LINK_CONTROL=y CONFIG_LTE_NETWORK_MODE_LTE_M_GPS...
Hi everyone,
I’m using a custom board (a tracker) that can travel at speeds up to 65 km/h and transmits data regularly every 200 ms. I expect, therefore, that the inactivity...
