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,
I am a beginner in nRF52840. I want to add a channel hopping feature in the 802.15.4 example .
As per my understanding of source code, we can set the channel number...
I am looking for a way only a known/trusted device can connect and write/read information from my device. Filtering by address(white-listing) is not feasible. So what is a...
Device:
Peripheral only
Peer Manager and Bonding working
S140 radio
nRF5 SDK 15.2.0
Rigado BMD-340 module
Central == iOS devices
Our nRF5 module is controlled...
Hi, I'm on last step of developing, but I have this critical trouble. For the project, I started from ble_app_buttonless_dfu sample of SDK15.3. I added some peripheral (one...
I'm using the ble_app_grs_freertos example. I'm trying to maximize its thru-put potential for Central devices which can support the high data rates. For this I've used the...
Hi, guys,
What I do:
Add freeRTOS into ble_app_hrs example project in SDK15.0
What matter I get:
When I set NRF_SDH_BLE_GATT_MAX_MTU_SIZE as 247, the device can not...
Hi 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...
DK version: nRF5_SDK_15.0.0_a53641a
Softdevice version: s132_nrf52_6.0.0_softdevice
I am using a Fanstel BT832X SOC, which has the SKY66112 PA, on a custom PCB. The...
Hello,
I am using UART to receive data on a nRF52840 DK.
I have written some code using the Serial Port Library.
I have attached snippets of the code dealing with the...
Hi,
I'm working on a tone library. I'm using timer2 and ppi channels to generate 50% pwm signal.
It's working fine.
Now i want to add another timer comparison ( timeout...
I am trying to see if there is a way I can generate a multi frequency audio signal without additional hardware. I am talking about something similar to DTMF. The audio wave...
Would you please tell me how to use the nrf52832 PWM interface to implement differential output to spkr?
Here is my PWM interface configuration code:
NRF_PWM0->PSEL...
I am working on a device which also needs to give audio feedback to the user.
The app on the mobile phone needs to send a wav (or similar) file (mono, speech) to the device...
