nRF52840 v.2 – What’s New?

From IC Revision 1 to 2While there are quite a few changes available for review in the nRF52840 documentation, there is update that is particularly important for many users out there, including a large amount of our own customers. The update I am talking about is about the power supply.

First things first – if you’re interested in reading the whole documentation for Nordic Semiconductor’s nRF52840, then look no further than their Infocenter.
nRF52840 IC reversions and variants

As you can see in the picture below, there’s a lot of information about LDO and DC/DC regulators. That is exactly the main topic of today’s post.
On nRF52840 version C, when changing from 5.5V to 3.3V, you had to use LDO mode in order for the chip to function properly. In the new chip version 2, you won’t have to change to LDO mode as you can directly use REG0 DC to DC.

I will let the Infocenter documentation speak for how it works in detail as quoted below:
Nordic Infocenter - nRF52840 Power Supply update.PNG

The system contains two main supply regulator stages, REG0 and REG1.

Each regulator stage has the following regulator type options:

Low-dropout regulator (LDO)
Buck regulator (DC/DC)
In normal voltage mode, only the REG1 regulator stage is used and the REG0 stage is automatically disabled. In high voltage mode, both regulator stages (REG0 and REG1) are used. The output voltage of REG0 can be configured in register REGOUT0. This output voltage is connected to VDD and is the input voltage to REG1.

By default, the LDO regulators are enabled and the DC/DC regulators are disabled. Registers DCDCEN0 and DCDCEN are used to independently enable the DC/DC regulators for the two stages (REG0 and REG1 respectively).

When a DC/DC converter is enabled, the LDO for the corresponding regulator stage will be disabled. External LC filters must be connected for each of the DC/DC regulators being used. The advantage of using a DC/DC regulator is that the overall power consumption is normally reduced as the efficiency of such a regulator is higher than that of a LDO. The efficiency benefit of using a DC/DC regulator becomes particularly prominent when the regulator voltage drop (difference between input and output voltage) is high. The efficiency of internal regulators vary with the supply voltage and the current drawn from the regulators.

Note: Do not enable DC/DC regulator without an external LC filter being connected as this will inhibit device operation, including debug access, until an LC filter is connected.

We hope you get a better understanding about the update from nRF52840 Revision 1 to 2 and its power supply.

Raytac now has started supply module demo board, MDBT50Q-DB, build by nRF52840 v2 SoC.

If you would like to purchase our MDBT50Q-DB demo board (deployed module: MDBT50Q-1MV2) on it, you can get one on eBay or Verical.

We at Raytac wish you all a nice day and happy tinkering 🙂

 

Raytac Corporation 勁達國際電子有限公司 A BT 5.1 & BT 5 & BT 4.2 module maker based on Nordic nRF51 & nRF52 solution (nRF52840 & nRF52832 & nRF52811 & nRF52810 & nRF51822)

www.raytac.com email: cs@raytac.com Tel: +886.2.3234.0208

New Distributor Announcement (Turkey & Egypt) – Özdisan Elektronik A.Ş.

Raytac is glad to announce that we has expanded our distributor network to Turkey and Egypt. The distribution agreement with Özdisan Elektronik A.Ş. covers FAE, Engineering, Sales, Marketing and support for Raytac Corporation’s full range of module lines, including nRF52840, nRF52811, nR52832 and nRF51 series in territory.

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Özdisan Elektronik A.Ş. was founded in 1980 and currently is the leading electronic components distributor in Turkey. The headquarter located in Istanbul and built up 4 sales offices and warehouse in major cities in Turkey cities(Istanbul, Ankara, Izmir, Bursa). Employed RD FAE capability to support the development and evaluation consultant and also Marketing & Sales service.

Not only distribution service, Özdisan Elektronik A.Ş. but also expanded business to PCB & PCB assembly, LED lighting solutions, aluminum coolers aimed to achieve the synergy collaboration all the way from product idea emerging, developing and mass production.

IoT now has become a part of people’s life experience and Bluetooth is the key protocol connecting between human and IoT appliance.

Raytac employees Nordic’s solution developed series of modules which is a recommended 3rd party module maker listed in Nordic website. All modules from Raytac comes with superior RF efficiency, reliable quality, Bluetooth certification granted, and FCC/IC/CE/Telec/KC/SRRC/NCC pre-certified. Developers who deployed Raytac’s module into products may save lots of efforts in RF design expertise and obtain the low cost and time-to-market efficiency.

With Raytac’ Bluetooth Low Energy module joined the line card, Özdisan Elektronik A.Ş.  expects to advance the service from the Bluetooth world connecting to an unlimited future.

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Contact Window

Okan Abdi
Genel Müdür Yardımcısı/Deputy General Manager
Özdisan Elektronik Paz. San. ve Tic. A.Ş.
email: oabdi@ozdisan.com Tel: +90 (61) 420 1882
website: www.ozdisan.com

İbrahim Ekmekçi
Saha Uygulama Mühendisi /Field Application Engineer
Özdisan Elektronik Paz. San. ve Tic. A.Ş.
email: iekmekci@ozdisan.com Tel: +90 (61) 420 1882 /Ext:230   Mobile: +90 (534) 014 78 76
website: www.ozdisan.com

CD卡-2

MDBT50Q-RX-ATM-1

Raytac Corporation 勁達國際電子有限公司
A BT5 & BT 4.2 & BTv4.1 module maker based on Nordic nRF51 & nRF52 solution
(nRF52840 & nRF52832 & nRF52810 & & nRF52811 &nRF51822)
www.raytac.com email: cs@raytac.com Tel: +886.2.3234.0208

 

nRF52840 AT Command USB Dongle MDBT50Q-RX-ATM

To have an easy understanding of Raytac’s AT Command USB Dongle, here provides the command table for reader’s easy reference.

We encourage readers to visit Raytac’s website to obtain the detail information

MDBT50Q-RX-ATM

MDBT50Q-RX-ATM-1.jpg

Raytac AT command is built based on Nordic UART service, aka NUS, which is similar to SPP (Serial Port Profile) applied in Classic Bluetooth (BT2 and BT3)

To service the Bluetooth bridging works, AT command modules or dongle comes with both Central/Master & Peripheral/ Slave role available.

Latest released MDBT50Q-RX-ATM is a USB dongle designated to connect to PC or Machine acted as the Central / Mater role supporting below commands.

List of supported commands

  • Setting of scanned device name
  • Setting of scanned base UUID/service UUID/TX character/RX character
  • Setting of scanned RSSI threshold
  • Selective data rate of 1M bps, 2M bps or 125K bps on-air
  • Set TX output power in 6 levels.
  • Set scanning time
  • Enable/disable scanning
  • Set LED pattern indicating scanning or connecting status
  • Auto UART baud rates
  • Use external 32.768KHz oscillator
  • Recover-to-default setting with software method
  • System reset of software
  • Set serial number and retrieve
  • Retrieve MAC Address
  • Support maximum MTU 247bytes / data payload up to maximum 244 bytes

MDBT50Q-RX-ATM-2 Command Table.jpg

Raytac Corporation 勁達國際電子有限公司

A BT5 & BT 4.2 & BTv4.1 module maker based on Nordic nRF51 & nRF52 solution

(nRF51822 & nRF52832 & nRF52810 & nRF52811 & nRF52840)

www.raytac.com email: cs@raytac.com Tel: +886.2.3234.0208

 

Raytac Central Role AT Command USB Dongle MDBT50Q-RX-ATM Released

Raytac today announced (Central / Master) AT command dongle released.

Part No.:

MDBT50Q-RX-ATM

Raytac AT Command Module Family

nRF52840 is Nordic’s latest and advanced solution, which brings a new interface “USB” from other lines, has drawn the attention among developers. 


Raytac developed AT Command  (Master / Central ) solution based on nRF52840 solution, fulfilled the demand of USB interface, missioned to deliver a full coverage of AT Command product line.


Raytac’s nRF52840 USB AT Command dongle, MDBT50Q-RX-ATM is a BT5, FCC/IC/CE/Telec/KC/SRRC/NCC/RCM/WPC pre-certified dongle which is  eliminating the need for RF design expertise, and speeding time to market for complex M2M IoT applications. 


AT command module is an easy solution provides developers a quick breakthrough to Bluetooth connection. Without firmware effort needed, simply have commands setting on MCU and the start to enjoy the implement of bridging connectivity between devices through Bluetooth.

After Raytac’s completed both Central (Master) & Peripheral (Salve) role AT command module projects, the USB interface has brought up the strongest demand by developers.

Raytac Corporation 勁達國際電子有限公司
A BT5 & BT 4.2 & BTv4.1 module maker based on Nordic nRF51 & nRF52 solution
(nRF51822 & nRF51422 & nRF52832 & nRF52810 & & nRF52811 &nRF52840)
www.raytac.com email: cs@raytac.com Tel: +886.2.3234.0208

 

Burn your firmware – onto MDBT50Q-RX that is

Hi there, folks!
So you have hopefully downloaded your IDE, you have written your code which you then plan to copy it over onto your MDBT50Q-RX and make it execute your master plan to take over the world!
Seriously, don’t underestimate the Nordic nRF52840 based MDBT50Q-RX. USB sticks with Bluetooth can do wonders 😉
(I am serious! Just look at Plezmo! You see that USB stick? Yep, that’s another Raytac for ya)So, first of all, in order to be able to burn your code onto the USB Dongle, you will have to know the nerdy parts which includes which pins you will have to connect to. In our very well documented specification sheet for MDBT50Q-RX on section 8 which is called “Reference Circuit”, you will find parts down to the left that has “3.3V/SWDIO/SWCLK/GND” marks on it:
Burning pins on MDBT50Q-RX

Further down in the specification sheet, in section 9, you will find pictures illustrating where exactly on the PCB you can find these pins:
Pin locations

Now we know what to look for and where they are, so now we have only got to tell you how to use them.

Some people might not know this, but for developing these things, you need to get something called J-Link to connect your MDBT50Q-RX to your desktop. However, since this J-Link, when buying the official one from SEGGER, is very expensive, we strongly recommend you to just buy the nRF52840-DK from Nordic Semiconductor as it can be used as a J-Link through their software development kit (SDK) called nRFgo Studio and is MUCH CHEAPER than the official J-Link from SEGGER is.
Sidenote: There are a couple of other reasons why you should just get your hands on a nRF52840-DK from Nordic Semiconductor instead of getting a SEGGER J-Link, but that’s not the topic of this post 😉

When this is done, this is finally how you connect your MDBT50Q-RX to your J-Link to make it all work:

MDBT50Q-RX and J-Link connection

Here you will have to pay attention to the fact that you have to connect J-Link pins 3, 5 & 9 to GND. Otherwise, you won’t be able to burn anything onto your dear MDBT50Q-RX.
The physical connection should look like this:

J-Link Cable Connection

Pay attention to the direction of the cable, because that will also matter. The direction we mean in this case is which way the slim strip of red is facing.

As we have just revised our MDBT50Q-RX, our customers who have been developing firmware for our USB dongle should take a look at our previous blog post in which we explain about the changes made or contact us directly at service@raytac.com

Have a good day and we at Raytac wish you smooth and happy tinkering 🙂

Raytac Corporation 勁達國際電子有限公司
A BT5 & BT 4.2 & BTv4.1 module maker based on Nordic nRF51 & nRF52 solution
(nRF51822 & nRF51422 & nRF52832 & nRF52810 & nRF52840)
www.raytac.com email: cs@raytac.com Tel: +886.2.3234.0208

 

Raytac Product Change Notice (PCN) Announcement for nRF52840 Dongle: MDBT50Q-RX

Dear Customers,

To enable hardware reset function in Raytac’s nRF52840 dongle (P/N: MDBT50Q-RX), Raytac’s has revised the circuit and issued the PCN accordingly.


Description of the Change:

1. Change circuit design to enable the hardware reset function.
2. Change PCB Imprint
3. Change Label
4. Change Part No.

Here provided the content of the PCN for customer’s reference.

PCN-19031801-1
PCN-19031801-2

Customers who have been developing firmware based on pervious dongle, please contact with service@raytac.com to request the latest sample version for evaluation.
Raytac Corporation 勁達國際電子有限公司
A BT5 & BT 4.2 & BTv4.1 module maker based on Nordic nRF51 & nRF52 solution
(nRF51822 & nRF51422 & nRF52832 & nRF52810 & nRF52840)
www.raytac.com email: cs@raytac.com Tel: +886.2.3234.0208

Raytac Corporation at IT Week Hall 3 & 4 / 11-22

With over 600 exhibitors gathering in Tokyo, Japan from April 10-12, IT Week has become one of the biggest exhibitions within the IoT Technology sector.
Raytac is pleased to be attending this years IT Week and present our full range of module family based on Nordic nRF51822, nRF52832 and nRF52840.

Meanwhile, the latest product, MDBT50Q-RX, a multi protocol nRF52840 dongle will make its second public appearance which powers up the most advanced IoT and Mesh network implementations.

Raytac Corporation 勁達國際電子有限公司
A BT5 & BT 4.2 & BTv4.1 module maker based on Nordic nRF51 & nRF52 solution (nRF51822 & nRF51422 & nRF52832 & nRF52810 & nRF52840)

www.raytac.com email: cs@raytac.com Tel: +886.2.3234.0208

How To Use MDBT50Q Demo Board (MDBT50Q-DB)

Here provides an easy introduction of How to set up of MDBT50Q-DB!
MDBT50Q-DB, built by Raytac’s MDBT50Q-1M deployed nRF52840 SoC with Bluetooth 5 & Thread Combo module Demo Board. Equipped Raytac’s MDBT50Q-1M  with 1MB Flash Memory and 256KB RAM and Chip Antenna. Certifications include:  FCC, IC, CE, Telec, KC, SRRC, RCM, NCC, WPC 
mdbt50q demo board package 拷貝

Bluetooth – Current and soon-to-perish versions

Bluetooth has been around for quite some time, but that doesn’t mean that no one is a beginner when it comes to developing Bluetooth-based products. In fact, due to their recent updates, Bluetooth is becoming increasingly popular as demand for power efficient gadgets and wireless technology is increasing. Smart watches is just one of the many examples out there.

For each and every single one of these devices, you’ll first have to register your new product with Bluetooth-functions built in on Bluetooth SIG’s website. You will eventually register (and pay for) your product based on what version of the Bluetooth protocol that you’re using in the product and do so by purchasing a so called Declaration ID (DID).

Yes, a little exaggeration in the title, but that’s essentially what it comes down to. Bluetooth SIG is doing some major updates and changes to the Bluetooth protocol which includes getting rid of the more outdated versions.

There are quite a few versions of the Bluetooth protocol out there, but nowadays you will basically be advised to choose from 2 versions:
v.4.2 or v.5.0
These two versions would be, as I mentioned in the title, the two current versions of Bluetooth.

Although it might seem very simple at first, there are a few things that you need to understand the content of the announcements to fully grasp what these updates and changes mean. That, my friends, is today’s topic of this post.

Archived specifications

Deprecated and Withdrawn Specifications

When a specification reaches the end of its useful life, the Bluetooth® SIG may choose either to deprecate the specification, ending maintenance and restricting its use, or to withdraw the specification from use.

Bluetooth SIG – https://www.bluetooth.com/specifications/archived-specifications

What has changed recently is nothing new, but it’s big. What I mean is that similar changes have been done in the past, but since the market is more dependent on the technology now than before, it matters far more for people when the Bluetooth SIG do the same changes nowadays. Those changes are as follows:

On 01/28/2019, the following policy changes will be enacted:
– Creating new designs that implement deprecated or withdrawn specifications will not be permitted
– New products cannot be added to designs that implement withdrawn specifications
– You cannot pay a $25,000 fee to qualify a new design that implements a deprecated specification
– Purchased but unused $25,000 Declaration IDs will no longer be valid and the cost of any unused $25,000 Declaration IDs will be credited to your account

 

Bluetooth SIG – bluetooth.com

This piece of information tells us that the process of withdrawing specifications comes down to two different steps, namely deprecation and withdrawal.
While deprecation literally means “to stop use”, it is in this case the first step in the process of making a certain Bluetooth specification obsolete.
Then there’s a time gap between a certain specification gets deprecated until it’s withdrawn. During this gap, as mentioned above, no new designs can be paid for and/or registered and unused DID’s will be invalid. This is only to prevent new devices with deprecated Bluetooth specifications from being produced. To stop the “bloodline” of those specifications if you will. During this gap, however, you are still able to add new products that implement the same fundamental design (e.g. version updates) as you wish.

After this gap is over, when the specification in question is actually withdrawn, you will not be able to add any new products to any existing designs.

Got it? No? It’s alright. In fact, there’s a lot of information and it’s hard to put into context right away. Just to make things clear, let’s make an example:
Company R is currently developing a new device called RIC which implements Bluetooth 4.0 specifications. For now, everything’s alright and Company R can go right ahead with their developments.
When the Bluetooth core specification 4.0 becomes deprecated in Jan 28th, Company R can no longer come up with new product designs such as RIC-2 since that would count as a new design, but Company R can update their original device RIC as long as they don’t change the physical design.
Then, when the Bluetooth core specification 4.0 is finally withdrawn, Company R cannot update their product RIC anymore AND they cannot register new designs under Bluetooth core specification 4.0.

If you’re a developer who is very familiar with Bluetooth already, this information might already be, as certain people refer it as, “peanuts”. If you’re new to the Bluetooth world, however, this is a lot to take in and you might want to read up more about it. We hope this explanation made things clearer for you though 🙂

You can find more info at:
Bluetooth SIG – https://www.bluetooth.com/specifications/archived-specifications

Don’t forget that Raytac Corporation’s modules are all pre-certified with FCC, TELEC, IC, CE, RCM, KC and SRRC. The best part is that more is yet to come!
Take a look at our modules on our website: http://www.raytac.com

 

Come to visit Raytac at Embedded World #Hall 3 / 3-520

With over 1,000 exhibitors gathering in Nuremberg, Germany on 26 Feb.~29 Feb., 2019 , Embedded World has become one of  the biggest trade fair among the IoT Technologies.

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