# 303 questions

Tagged
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65
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1
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1

## Why do I get ACI_STATUS_ERROR_INVALID_PARAMETER for every command I send?

I am communicating with the nrf8001 via SPI, from an HCS08 MCU. First thing I receive:

0x01 0x04 0x81 0x02 0x00 0x02

This makes sense, it tells me it is in setup state. I want to put it into test ... (more)

33
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no
1

## nRF8001: Won't respond to low REQN after reset

Screenshot of what I'm doing:

So I reset the nRF8001, then try to initiate a transfer by pulling REQN low. However, nRF8001 never responds by pulling RDYN low. I have configured RDYN as input in the master device.

Any ... (more)

50
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no
1

## nRF8001 UART-over-BLE

I have seen at least one person here who has gotten Nordic's UART-over-BLE example app running on the nRF8001. How was that done? Where is it? This example app is not included in the 8001 developer kit. This is ... (more)

1k
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1
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4

## nRF8001 What is the maximum data rate with peered device?

As stated in standard the maximum data rate is 0.27Mbps. So is that is true for nRF8001 ??

111
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## How to disconnect nRF8001 from a nRF52 board?

I am working on a project involving BLE communication, but I am quite new to BLE, so please be patient.

The project scenario is the following: I have a nRF52 feather board (from Adafruit: https://learn.adafruit.com/bluefruit-...) working ... (more)

27
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no

## nRF8001 DateCredits and Packets per Connection Interval

I am working on a project that uses PIC18 and nRF8001. PIC18 is used to control nRF8001 and LCD. The project needs to transmit large data to central ( about 512KB). It seems that the uploading took too long, estimated about ... (more)

39
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1
vote
no

## nRF8001: interpreting logic data

I'm running the ble_my_project_template example from ble-sdk-arduino, and listening to the ACI lines with a logic analyzer. Here is what I found in the first transmission, in which RDY is pulled low before REQ. One row for each byte ... (more)

44
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1
vote
1

## nRF2740 / nRF8001 DK: pin organization

Looking at the nRF8001 DK User Manual: http://imgur.com/a/NyY0L

It is unclear how pins 2-10 are organized.

37
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1
vote
1

Hi, I need to set dynamic advertisement data with nRF8001. To achieve this with nRFgo Studio my idea was to set "Service Data" in "Selected fields to advertise" (ACI Bond for example) within GAP settings, create characteristic with property "Set ... (more)

48
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no
1

I am trying to use optiboot-ble with the nRF8001 and an atmega328p to allow application update over bluetooth. I have successfully compiled the bootloader and flashed it to the microcontroller. I have loaded the uart project with dfu from the ... (more)

48
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no
1

## peer to peer communication between 2 nrf8001?

Hello,

I want to build a system which will use 2 nrf8001 to communicate. 1 nrf8001 will act as a client by continuously transmitting its UUID and another one will act as a server waiting to receive the client's ... (more)

407
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no
1

## Fatal error: 0 (src\ll_lm.s0.c:571)

Hi, I'm using nrf8001 nordic chip on my project. With some time on the nrf8001 chip begins to send the HW_ERROR with failure on ll_lm.s0.c and line 571. This not crash the board yet, but with more ... (more)

873
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no
1

## Cannot send bytes from Evothings app to Blend Micro...

I am working with a Blend Micro Board (Arduino IDE with RBL_nRF8001 sdk), using Evothings. Using the RedBearLab Simple control example I can easily connect to the board. I can receive bytes sent from the boards with ble_write and ble_write_bytes ... (more)

297
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-2
1

## We really want to work with Nordic, but they makes it hard.

It seems like a really great company, but after exploring and asking , and searching for a good BLE solution, I just can't find a good fit.

So you want a GOOD processor, and BLE . If you go with the ... (more)

93
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3
1

## Which Nordic chip should we use ?

We have to pick a BLE very quickly , and up till now we used to work with modules which are expensive in mass but easy to work with (e.g RN4020)

I am looking for a chip with a VERY ... (more)

28
views
1
vote
1

## nRF8001 - DC/DC converter - AVDD pin

Hi,

In the schematic presented in the topic 17.1 (dc/dc converter, image below) of the nRF8001 datasheet it isn't shown that AVDD should be connect to a power supply as in the topic 17.4.

dc/dc ... (more)

72
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no
no

## HID reconnection problem

I'm trying to save power on my HID keyboard application by disconnecting the Bluetooth link after some time of inactivity. As soon as there are keystrokes to send, the device advertises again and sends the pending values.

Generally I ... (more)

116
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no
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)

67
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1
vote
1

## nRFgo Studio configuration for HID over Gatt

Hi,

I have successfully implemented the UART over BLE. Now I'm trying to implement the HID over GATT for my nrf8001 device. What I'm trying to achieve is lower connection interval of the IOS device connected. The question ... (more)

56
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1

## nRF8001 Security Required - Just Works configuration

We have a sensor product that has been in the field using the nRF8001 in no security required, just works mode for over a year. Recently, we had a request from a volume user that requires a secure connection.

In ... (more)

63
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1
vote
no

## NRF8001, 0x88 CRC mismatch

We are a couple of students trying to implement NRF8001 in our project, we made a SPI setup on our Atmega328p to communicate with the NRF.

After sending our setup packages and 3 packages with 0s we ... (more)

51
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no
1

## NRF8001D/NRF8001C

Hello!

I have a problem with NRF8001 modules. I have two similar boards - one with NRF8001C and another with NRF8001D module. NRF8001C board works well, but NRF8001D board doesn't. The RDYN pin is always high. It seems like the ... (more)

75
views
1
vote
1

## HID template for nRF8001

Hello,

While looking for examples, I found a post from 2004 where a user is asking a question about an example code for HID on nRF8001. Is this code still available? Where can I get it?

Here is the original ... (more)

133
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no
2

## How to create a nRF8001 configuration for touch device with nRFgo

According to Microsoft's instruction on HID touch device, https://msdn.microsoft.com/en-us/libr..., a HID touch device should create a report (descriptor) as below,

0x05, 0x0d,                         // USAGE_PAGE (Digitizers)
0x09, 0x04,                         // USAGE (Touch Screen)
0xa1, 0x01,                         // COLLECTION (Application)
0x85 ...
(more)

99
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no
no

## Device advertised as mouse/keyboard, but after bonded it became heart rate device?

I am using RedBearLab Blend v1.0. I ran the HID_template and HID_keyboard_template. I can see the device in Win10 advertised as joystick and keyboard. Then I tried to modified the hid_mouse_batt_nordic_works.xml and generate a new configuration as mouse ... (more)

79
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1

## ACI_EVT_HW_ERROR line 571 nrf8001

I am using a nrf8001 and the arduino aci library ported to work with my project. I have started from hello world example. Connecting to the device from android app, sending some data over the uart and then disconnecting seems ... (more)

128
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no
1

## can i increase TX power of blend micro

i am using a blend micro with nRF8001. and i am using it as a hub in my project.Now i am getting a range of 13 meters.but that is not enough for my project.so can i increase ... (more)

93
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no
1

## Need NRF8001 to advertise while Microcontroller asleep.

I'm using an NRF8001 with an ATMEL ATMEGA 328P (the microcontroller from an Arduino). I need the microcontroller to go to sleep, but still allow the BLE chip to advertise and wake the microcontroller upon connection. It seems as ... (more)

64
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1
vote
1

## nRF8001 setup but not visible

Dear Colleagues,

I am much obliged for your kind assistance to me.

My Question:

I have setup my NRF8001 successfully (please find the setup file generate by the nrfgo attached).

When I ping the nrf8001, I get a standby message ... (more)

46
views
no
1

## [title:arduino] No ACKs after initial send

Hi All,

BLE Nordic Stack: 0.9.7 Tiny Circuits: Ardunio + Nordic nRF8001 Board

 First time post, and hoping someone has run into the same issue that I am.   I am in the process of writing a custom sensing ble ...
(more)

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