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...
Dear Nordic Developer Zone,
I am using nRF51822 with softdevice.
I don't understand very well the advertising mode "whitelist".
My target is to be able to connect...
Hi all!
I'm running my code based on example "ble_app_template". When advertising without doing anything else, the current comsuption is about 200 uA.
Then I added a...
Hi,
i just started again working with nrf51822 but now with eclipse+gcc and with new soft device S130.
I am struggling with the addresses of flash and ram. I want to...
I have been working on porting my code from Keil to gcc because it has grown larger than the 32K limit that the free version of Keil allows. I am using the s110 softdevice...
Hello, I have a problem during first programing PCA10003 blinky_example. I get an error:"Flash Download failed - "Cortex-M0" "
Keil v4.74
SDK v6.0.0
In nRFgo Studio...
I've been trying to get the SDK softdevice ble demos to work on a mbed board. I'm using pyOCD+linux. I can compile and flash elf (.out) files in gdb with 'load' and I can...
Hi,
I'm migrating from SoftDevice 6.0 to SoftDevice 7.0 and I'm trying to implement the DFU in SDK6.0. I am experiencing an issue where whenever the DFU begins(reaches 0...
The nRF51822-EK, when powered over USB, seems to be working on 3.0V. The C232HM SPI cable is a 3.3V cable. The nRF51 data sheet specifies VIO as VDD+0.3 as absolute maximum...
I have already made code of 3 pwm channels using c[0],cc[1],cc[2],cc[3]. I want 4 PWM channels but I dont have more cc registers left so how can i code it. plz help me.
ALso...
Hi - I saw this post and I'm not sure how to add a clarifying question on to it:
devzone.nordicsemi.com/.../
We have a similar problem in that we built our boards with...
Hello,
I am working on an application that involves sampling audio data ~8KHz. I have a few questions
The real time clock module has a maximum interrupt frequency...
Hi everyone,
I bought two NRF24L01+ off ebay a couple of week ago and started to work on them this week. I seem to have problem with establishing a reliable communication...
Hi,
I use : An nRF51822 mbed kit + Kiel 5
So I updated the firmware like this : mbed.org/.../ and I dropped s110_nRF51822_v6.000 into MBED(H:)
I successfully use...
Hi,
i read about a new Chip revision of nrf51822. So i have to buy new Development Kit. How can i find out what it is the actual DK and where to buy it. I don't want to...
Hello All,
I was looking at the flash writewrite_example and the starting address is defines as:
addr = (uint32_t *)(pg_size * pg_num);
Later in the code, the example...
