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# 181 questions

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291
views
2
1

## Apparently two channels are colliding?

Dear Nordic,

Device: nRF51422. Protocol: ANT+. Softdevice: S210 v5.0.0

I have 3 devices: two masters (No. 1 and 2) and one slave (No. 3). In my application, I pair the slave to the two masters, store both channels ... (more)

45
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no
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## Using ANT with nrf51 dongle for beginner

Hi, I'd like to use nrf51 dongle to scan for ant/ant+ communication, but I can't understand how to do that... it doesn't work with antware sw and I don't know how to use it in ... (more)

49
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3
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## How to measure centre frequency on the nRF52832 ?

Hi,

I am using the nRF52832 and I have been trying to meausre the centre frquency on a specturm analyser. But, the centre freq on the specrum analyser is 1.81GHz when it is supposed to be about 2.4GHz ... (more)

50
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## Any ANT guide for beginners?

Hi, I am totally new to NRF52832 chip and I want to use ANT+ in my sensor networks related project. I am using keil compiler and S332 softdevice (I am also using BLE therefore I am using S332) and 12 ... (more)

40
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## ant heart Page0 beat_count and beat_time calculate question

Hi I use SD310 and nRF51 in SDK10 and The Ant is set HRM_MSG_PERIOD_1Hz.

I integrate a heart rate module by I2C and the heart rate data is only all I got.

But the Cell Phone Ant Plus Sample App ... (more)

94
views
1
vote
1

## HRM Example on Sparkfun nRF52 board

Hi

I have this board: https://www.sparkfun.com/products/13990 connected to a PCA10040 Nordic board. I am able to write and debug the Sparkfun board (the blinky LED example). I am now trying to get the ANT+ HRM ... (more)

25
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1
vote
1

## Ant ACK retries

Hi Nordic,

I am now trying to use ANT acknowledged data type in reverse direction (from slave to master), and I have some questions:

• When sometimes, ack signal fails, internally, how many retries are configured? Can this number of retries ...

(more)

67
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3
1

## NRF52832 QFAA without ANT

Hello guys,

I am currently looking at the recommended schematic QFN48 with internal LDO setup and I have a few questions (sorry, if they are silly, I am a newbie).

1. If my application does not use ANT (it uses only ...
(more)

31
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## nRF5_SDK_11 incompatibility with ANT s212_nrf52_2.0.1

I'm attempting to build the ANT+ examples within SDK 11 and am hitting an issue in compile:

C:/Compilers/nRF5_SDK_11.0.0_89a8197/components/ant/ant_stack_config/ant_stack_config.c:30:17: error: macro "ANT_ENABLE_GET_REQUIRED_SPACE" requires 4 arguments, but only 3 given ...
(more)

76
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1
vote
2

## Lower power in sleep of GPIO as outputs?

Hi Nordic,

In my application, I want to consume as less power as I can. In the initialization I have this functions:

static void utils_setup(void)
{
APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_OP_QUEUE_SIZE, false);
}

static void softdevice_setup(void)
{
uint32_t err_code;

err_code = softdevice_ant_evt_handler_set(ant_evt_dispatch);
APP_ERROR_CHECK ...
(more)

59
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1

## How can I use ANT serialization(connectivity board and application board)

hello,I'm having a problem with the ANT application,I have two pieces of the PCA10040 board as a ANT connectivity board for a ANT application board.According to the instructions I use SDK13 in two applications.link text ... (more)

41
views
1
vote
1

## ANT Slave events when master stops being present

Hi Nordic,

I am having problems knowing what exactly happens in the following situation:

I have a connection established between a master and a slave, and the master stops being present for whatever reason (channel is closed from master side ... (more)

52
views
no
2

## Help with calculating cadence from a pulsing input [closed]

I am working on modifying the ant+ sdm example to hack my treadmill. Got the example running and talking to my Garmin watch and the display simulator. All of that seems straight forward and easy to manipulate.

Now I want ... (more)

37
views
1
vote
1

## Slave TX - master RX asynchronous type ANT?

Dear Nordic,

I want to know if it is possible to send asynchronous data type from a slave node to a master node (master node would be in continuous scanning mode). Reading the ANT protocol specification I do not have ... (more)

88
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no
2

## Using a nRF52 DK to Hack a Treadmill [closed]

I have purchased a nRF52 DK and want to use it by emulating an ANT+ Stride Based Speed and Distance (foot pod) and pair that with my Garmin FR235 running watch in order to get more accurate pace information to ... (more)

47
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1

## ANT and BLE concurrent problem with NRF51422

I want to use ANT and BLE concurrently.

1. I found that there are no multiprotocol examples in SDK12 for NRF51422 (PCA10028). It only have example for NRF52832 (ble_ant_app_hrm). The softdevice for NRF51422 and NRF51822 are different. It is using S332 ...

(more)

33
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1

## packet error rate in ANT mode

Hi,

I use nRF52832.

Could you tell me sample codes that can measure packet error rate in ANT mode (Nrf_1 Mbit)?

Best regards,

uba

90
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2

## nRF8001, nRF51422 or nRF51822

Hi,

It's my first post here so let introduce myself : I'm a 25 y.o. French electronics engineer and hobbyist. I also like skating (inline skates and ice skates) mainly slalom, jumps, speed run, street ride... And I ... (more)

63
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2
1

## I2c + timer1 + timer2 + softdevice(S210)

Hi Nordic,

My application does the following:

• Timer 2 takes care of controlling a shift register (CLK and DATA)
• Timer 1 takes care of polling data from sensor via I2C, each 10ms
• We are continuously sending and receiving data from ...
(more)

119
views
1
vote
1

## iOS/iPhone BLE service discovery timeout with ant shared channel demo

Hi!

Using the out of the box ANT shared channel demo with a NRF52-DK board and the iOS demo app everything compiles and installs nicely, using the Android-based app nRF Connect for Mobile I can successfully connect and control the ... (more)

41
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no
no

## Difficulies to implement acknoledgement on ant asynchrone link.

Hello,

I have some difficulties to make an ant acknoledgement with my nrf51422 (s210), and i would be grateful if you could help me with it. (SDK used 12.2)

I have 2 modules nrf51422 that communicate in ant:

• A ...

(more)

207
views
1
vote
2

## Arduino Primo or nRF52 DK or ...

Hi, I'm looking to build a simple ANT+ application. My only asset for this project is a background in C/C++. I'll need to learn/relearn the basic electronics and protocol bits. I had thought to use an ... (more)

162
views
no
2

## Including C++ library in C project?

Hi Nordic,

I want to include this library (https://github.com/jrowberg/i2cdevlib...) in my project, which is an evolution from ant_ broadcast example, in C. However, and after reading several related posts, I am not able to compile my ... (more)

56
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no
1

## Can you please look into the customised ANT design

Is this antenna pattern and design for our custom board is fine? we are using the nrf51822 with matching circuit. Please put your valuable suggestion from your experience.

Thanks Vallinath

93
views
3
no

## Events triggered in slave while not paired

Hi Nordic, I come from this question: https://devzone.nordicsemi.com/questi...

So, my doubt is: what events are triggered in a slave channel while it is not communicating to a master?

I am having problems triggering EVENT_CHANNEL_CLOSED (the function ... (more)

60
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no
no

## Hardfault Compiler error on nRF52 ANT Broadcast Tx example

Hi, I am trying to compile the ANT Broadcast Tx Example from the latest nRF5 SDK v12.1.0 (../examples/ant/ant_broadcast/tx), but I get the following 3 error messages with an unmodified example code:

Compiling hardfault_handler_keil.c

• expected ...
(more)

78
views
no
1

## can i send data ove ant just one time

hi. i open ble_ant_app_hrm from sdk 9 and i send data over ant . how can i send a data just one time cause i want save it on eeprom. how can i send a data just one time?

79
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5
no

## ANT Broadcast Message through previously set up channel

Hi Nordic,

I have a star network with 3 nodes and 2 channels. I go through the whole pairing process and start sending data without problem. Now I want to, from the master, use one of these two channels to ... (more)

63
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2
1

## Program stuck at ant_channel_init

Hi Nordic,

I am trying now to create a star network, in which the central node is master of different slave channels. The idea is to configure and open different independent channels. However, the code gets stuck when I try ... (more)

82
views
1
vote
1

## ANTware II in PCA10028 (nRF51 DK): not being discovered in the software

Hi there!

I am trying to develop some application using ANT, and for that I bought some nRF51 (10031) dongles and one nRF51 DK (10028). In the beginning, I tried to use ANTware II with the dongles, but apparently, as ... (more)

#### Statistics

• Total users: 22176
• Latest user: Wilhemina Schindler
• Resolved questions: 9658
• Unanswered questions: 2796
• Total questions: 23035

## Recent blog posts

• ### nRF52 Development with CLion

Posted 2017-06-22 09:50:54 by dansheme
• ### Simple GPIO driver example

Posted 2017-06-22 13:38:36 by Hans Elfberg
• ### What mom didn't tell you about ble_app_att_mtu_throughput on the nRF52840 evaluation board

Posted 2017-06-16 16:12:15 by George
• ### Introducing Nordic’s new software licensing schemes

Posted 2017-06-15 11:21:39 by Reidar Martin Svendsen
• ### Open source project for live monitoring and troubleshooting of IoT systems and networks (now supports nRF52832)

Posted 2017-06-13 15:20:07 by Yaniv Nis

## Recent questions

• ### Missing closing brace in SDK13.0.0

Posted 2017-06-22 17:45:31 by Vulpiculus
• ### Clarify is_conn_params_ok() function

Posted 2017-06-22 17:18:46 by aras
• ### Enabling DC/DC mode on the NRF BEACON

Posted 2017-06-22 16:20:58 by nugget
• ### How to config SAADC?

Posted 2017-06-22 16:11:44 by Leila
• ### S130 central disconnected immediately after connection to iOS peripheral

Posted 2017-06-22 15:42:49 by Adam Heinrich