Hello,
I established a connection between my central and peripheral module. Now i want to write characteristic value on peripheral. I tried with sd_ble_gattc_write function...
I am using the NRF24l01 for my products and looking to buy in bulk(100-1000). Now I know where to buy the just the IC but antenna design is a hard point to break right now...
Hi, my friend,
I've been with nrf905. I use a 16-bit CRC check.
But I encountered problems in use:
1.Nrf905 16-bit CRC check format is CRC-16(IBM):X16+X15+X2+1 or other...
I have two custom PCBs, each of which has a microcontroller and an nrf24L01+. Everything related to the transceiver in the designs are complete duplicates (with the exception...
Hello,
I've built a small BLE-device based on the nrf8001.
With my Iphone I can discover this device and I am able to connect to it and listen to notifications of the...
Our pcb is used for gps location data. We have a nrf24L01 nordic chip as the micro process or between the gps module and wireless module (2G). Our engineer needs to capture...
Hey folks,
I'm trying to modify the SPI Master loop back example into a 4 line SPI Master_Slave program. Whenever I change the Tx_Buffer_lenght from 10 to lsome other numbers...
Hi All,
I have a problem with .hex file. I use example ble_app_uart from nRF5_SDK.
In examples\ble_peripheral\ble_app_uart\pca10056\s140\armgcc I executed: make all and...
I try to turn off the system with sd_power_system_off()
// Go to system-off mode (this function will not return; wakeup will cause a reset).
err_code = sd_power_system_off...
Based on 'ble_app_template' in nRF5_SDK_12.2.0 (S132), I develop a program with nRF52832.
The problem is that the program will restart after reaching APP_ADV_TIMEOUT_IN_SECONDS...
Hi,
I have a few questions about using floating point in nRF5 chips. As discussed here , nRF51 has no FPU but we can simply use "float" in Keil and have the operations...
My device as a slave, if the surrounding environment is not good, the unknown master device connected to my slave device caused the real master device to be unable to scan...
Dear Nordic family,
I tried programming MDBT40 (purchased from Raytac ) with the same code which worked with nRF51822 Bluetooth Low Energy BLE 4 and 2.4GHz Wireless Communication...
I'm trying to implement a simple RTC timer into my project, and it seems like the app_timer module is the best way to do that, especially when using the Softdevice. I added...
Hello,
we are facing the following issue when using Android and trying to rebond with a previously bonded S110 peripheral:
Bonding the Android device with the S110 based...
We are looking to store a unique name and number in each device as it is provisioned from the factory, and are considering using the UICR. We are using something close to...
when i use the ble_adverting_start(BLE_ADV_MODE_FAST) it return error code : 8 it is from then APP_ERROR_CHECK(err_code) it can system abnormal. the error is from sd_ble_gap_adv_start...
I use PCA 10040 as a Central, and PCA 10028 as a peripheral. I want the central to connect and pair and bond with the peripheral.
I use S130 for PCA10028, s132 for PCA10040...
I have an application which uses the S132 softdevice and communicates with a DAC over I2C. The twi is in non-blocking mode. Furthermore, there is a significant delay between...
Hi All,
I'm busy exploring the ble_peripheral_uart example and ran into a couple of issues I don't fully understand. Upon flashing the S140 SoftDevice and application program...
