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Forum Index : Microcontroller and PC projects : E100 WiFi

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jman

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Joined: 12/06/2011
Location: New Zealand
Posts: 711
Posted: 06:16pm 14 Oct 2016
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Hi

To make it easier to use WiFi with the E100 Grogster
kindly designed a PCB for me that uses the mikro BUS standard
to interface to an ESP-01.







The buttons are to make updating the firmware easier
and can omitted if you don't intend to update the ESP-01
firmware. To update the firmware use the following circuit



To use the module on the E100 you need to make the solder jumpers
labelled click TX/RX this uses COM3

Grogster will have the PCB's on his website soon these should be
around $1.00NZD

Enjoy

Regards
Jman

EDIT
I forgot to attach the gerbers
2016-10-15_042342_Jman_2_WiFi_Click_Board.zip


Edited by jman 2016-10-16
 
matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 10201
Posted: 09:12pm 14 Oct 2016
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Nice idea

My only comment would be to add holes for a 100uF tantalum and 0.1uF ceramic across the power rails. The ESP is notoriously sensitive to power supply and works best with a big "tank" capacitor as close as possible to the module.
 
Grogster

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Joined: 31/12/2012
Location: New Zealand
Posts: 9587
Posted: 11:30pm 14 Oct 2016
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Version 1B?

You could easily add those caps on the bottom side I guess - there's plenty of room in between the female headers on the Click sockets, for the caps to exist on the bottom of this module.
Smoke makes things work. When the smoke gets out, it stops!
 
lew247

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Joined: 23/12/2015
Location: United Kingdom
Posts: 1702
Posted: 02:11am 15 Oct 2016
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A suggestion regarding your E100 board
If you added a DHT22 and a 4K7 resistor and connected it to the PWM pin, then the board could be used as a weather station for the E100
It could pull the outside data off the internet and display it and the DHT22 could display the internal room temperature and humidity
I did actually design a similar board to go with my weather station once it's all working properly, but your board is much better as you included the programming input for the ESP8266 which I had forgotten aboutEdited by lew247 2016-10-16
 
Phil23
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Joined: 27/03/2016
Location: Australia
Posts: 1667
Posted: 09:56am 16 Oct 2016
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  Grogster said   Version 1B?

- there's plenty of room in between the female headers on the Click sockets...


With all that room to spare, maybe Version 2 could support either ESP-01 or HC-11/12 modules, just by installing the appropriate header.?

Obviously you couldn't install both.

Phil.
 
Grogster

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Posted: 03:07pm 16 Oct 2016
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It begins..........

Yep, that's not a bad idea though. I can't really do anything to this board without jman's say-so, as it was his idea, and I have to respect that. I will let him post if he is OK with changes or not.

1B is only conceptual at this stage. I have no plans to do one - unless jman asks me to.
Smoke makes things work. When the smoke gets out, it stops!
 
Phil23
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Posted: 07:17pm 16 Oct 2016
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  Grogster said   It begins..........



Notice I didn't mention Bluetooth.....
 
Grogster

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Posted: 08:25pm 16 Oct 2016
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I'm sure you can already get Click Bluetooth modules.

I do respect everyone's suggestions, and design-by-committee can come up with some good compromises in ideas, but the problem is that by it's very nature, nothing can be agreed upon because certain features are wanted by some, but not others, and nothing gets done.

All good intentions I am sure, but........
Smoke makes things work. When the smoke gets out, it stops!
 
jman

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Joined: 12/06/2011
Location: New Zealand
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Posted: 08:27am 17 Oct 2016
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Hi

Please go ahead and make whatever changes you guys like.
For me I just wanted quick, cheap and simple way to add WiFi

Regards
Jman
 
srnet
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Joined: 08/08/2014
Location: United Kingdom
Posts: 164
Posted: 09:24am 17 Oct 2016
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I will soone have my LoRa Mikrobus modules back for DRF1278F and RFM98, which should be useful as LoRa goes very much further (10-30 times) than other UHF Modules.

There are Click modules available for LoRa as there are for Bluetooth, but rolling your own is very much cheaper.


$50SAT is Silent but probably still working.
For information on LoRa visit http://www.loratracker.uk/

 
JohnS
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Joined: 18/11/2011
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Posted: 11:25pm 18 Oct 2016
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The Mikrobus modules seem unbelievably expensive so is there not a better choice of extension connector?

Maybe UEXT?

John
 
srnet
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Joined: 08/08/2014
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Posted: 05:49am 19 Oct 2016
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  JohnS said   The Mikrobus modules seem unbelievably expensive so is there not a better choice of extension connector?

Maybe UEXT?

John


The MikroBus format is free to use and very low cost.

If a board is 'unbelievably expensive' its not the format that makes them so.
$50SAT is Silent but probably still working.
For information on LoRa visit http://www.loratracker.uk/

 
JohnS
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Posted: 07:51am 19 Oct 2016
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  srnet said  
  JohnS said   The Mikrobus modules seem unbelievably expensive so is there not a better choice of extension connector?

Maybe UEXT?

John


The MikroBus format is free to use and very low cost.

If a board is 'unbelievably expensive' its not the format that makes them so.


So those horribly expensive ones on the MikroE site are just so expensive because they feel like charging a lot for them?

I didn't actually find any cheap ones at all!

JohnEdited by JohnS 2016-10-20
 
jman

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Posted: 08:30am 19 Oct 2016
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Price was main factor to me rolling my own

Jman
 
srnet
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Posted: 09:14am 19 Oct 2016
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  JohnS said  So those horribly expensive ones on the MikroE site are just so expensive because they feel like charging a lot for them?


If thats what MikroE want to charge for their modules then I would assume they know their market and thats what people are prepared to pay.

The rest of us can use the layout to make our own very low cost versions.


$50SAT is Silent but probably still working.
For information on LoRa visit http://www.loratracker.uk/

 
JohnS
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Posted: 10:19am 19 Oct 2016
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Of course you can - but why choose it at all?

There are other ones that could be chosen, some with existing sensibly priced add-on boards. Why not choose one of those bus/connector standards?

John
 
srnet
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Posted: 06:56pm 19 Oct 2016
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  JohnS said   Of course you can - but why choose it at all?

There are other ones that could be chosen, some with existing sensibly priced add-on boards. Why not choose one of those bus/connector standards?

John


Which other formats had you in mind ?
$50SAT is Silent but probably still working.
For information on LoRa visit http://www.loratracker.uk/

 
JohnS
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Posts: 4034
Posted: 11:02pm 19 Oct 2016
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  srnet said  
Which other formats had you in mind ?


Any that have boards readily available and not expensive.

Does no-one know any? I'm a programmer but can suggest UEXT or Arduino shields. There must be others - probably several or even many.

Adopting something where in effect you're forced to make your own add-ons due to the excessive price of the few existing ones made me think: why?

JohnEdited by JohnS 2016-10-21
 
Grogster

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Posted: 01:50am 20 Oct 2016
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Geoff may be able to answer this one, as it was at his instructions that these socket footprints be included. I expect it was simply due to the relatively large range of different modules you can get in that footprint from them. Price of some of the modules was probably not given too much thought, rather the range of choices available with this footprint. I am only guessing though, and might be totally wrong. If Geoff reads this, perhaps he will clarify that aspect of it.
Smoke makes things work. When the smoke gets out, it stops!
 
Geoffg

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Joined: 06/06/2011
Location: Australia
Posts: 3282
Posted: 03:48am 20 Oct 2016
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I am not sure why this is being debated but, for the record, this was my thinking when adding click board sockets to the design...

Click Boards have a huge range and while they are more expensive they do a single job far better than Arduino boards which do not have a solid standard and often rely on sketches which cannot be easily translated to BASIC. UEXT boards are similar to click boards but the range is severely limited and the design is inconsistent. Keep in mind that the Explore 100 was designed for people who want to get things done rather than count pennies.

The bottom line is that everyone will have their own opinion on a subject like this based on their personal experience and priorities.

Geoff
Geoff Graham - http://geoffg.net
 
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