How do I receive multiple signals simultaneously at a single receiver (433MHz) with multiple transmitters ?
I am working on a polling system. This one is similar to the audience...
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...
Hi
During schematic design, i read regarding proper powering of NRF52 (the product is battery powered 2xAAA). somehow i can't find this info now and i would like to verify...
What does mask and 1<< mean in the following code:
#define BSP_LED_0_MASK (1<<BSP_LED_0)
#define BSP_LED_1_MASK (1<<BSP_LED_1)
#define BSP_LED_2_MASK (1<<BSP_LED_2)
...
Hi all,
I'm transferring data to and from an Atmel AT25040 NVRAM using SPI, and it works perfectly when run within main(). However, if I run the same code from within an...
Hi, I want to enable notification for a specific characteristic, and to do that, I must write 0x01 (in java it's going to be "01,00" ) to the CCCD handle of this characteristic...
Hi,
I tried to use python API to drive the nrf sniffer to capture ble device information by their advertisement packet. I can successfully target a specific ble device...
Hi, I'm wondering how much i need the LF crystal oscillator.
In this case, the chip is never asleep, in constant latency mode, and is constantly advertising and meshing...
Hey guys,
We have several different devices that use the nRF51822 and some using the nRF24L01. We currently use the proprietary RF protocol and have all of our devices successfully...
Hi,
Reading from flash, an already programmed key, returns zero.
Using sdk 12.1, sd s132_nrf52_3.0.0, nrf52832, and pstorage. The key is programmed after uploading the...
On nRF52 interrupts for GPIOTE, I need to perform one event when a button is pushed, and perform another different event when the button is released.
I've checked these...
When the PPK calibrates and turns off the DUT, does the nRF52832 on the PPK disconnect from the External DUT lines? My DUT has a LOT of capacitance on it, and it takes several...
Hello i use the example ble_app_beacon_s130_pca10028, i'll try to add UART functions, but they not work anybody has this problem, please help me!!
int main(void)
{
uint32_t...
Hi..! Friends..!
I am trying to detect the number of steps on accelerometer.
For which I want to Plot the accelerometer values in real time (with minimum rate 50values/sec...
I would like write music box by buzzer. So I need adjust the PWM frequency continuously.
But i don't find the sample cede which is about adjust PWM frequency in SDK.
Where...
