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Karma101
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Joined: 27/02/2015
Location: United States
Posts: 2

Posted: 01:13pm 27 Feb 2015

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I am building a wind turbine out of a 3 phase Baldor 2hp motor I turned down the rotor and am installing magnets. I want to build Gizmo's Picaxe based Windmill Controller/Charger. that uses's the picaxe 28x chip I found the chip on eBay for $29. after shipping.
From what I understand you program the chip on the board. using the 9 pin serial plug. What is on the other end?
I have a few questions about the Items in the case like.
#1 the circuit diagram dose not show a 3 phase bridge rectifier before the Battery or is that what the 4 mosfets are.
#2 what size resistors are used for the dump load I take it that is the long black object on the left behind the circuit board?

Looks like fun I want to build the data logger next.
Thanks for your help

Downwind

Guru

Joined: 09/09/2009
Location: Australia
Posts: 2333

Posted: 11:27pm 03 Mar 2015

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Hi, i replyed to your question on the picaxe forum.

As i had commented you can get USB to serial cables far cheaper than the crap RevEd sells well over priced, for example i have found all adaptor cables that use the HL340 chip work with Picaxe, so search ebay for "HL340 USB to serial" and you should find a few like this one ..........

http://www.ebay.com.au/itm/USB-to-9-pin-serial-cable-USB-to- serial-COM-port-USB-RS232-HL-340-A978-EW-/331197929551?pt=LH _DefaultDomain_15&hash=item4d1cef584f

Just understand not all cables will work with picaxe as some have the siginals inverted, so any cable that states TTL will not work, only cables that has true RS 232 data works with picaxe.
Basically its still TTL with a inverter chip added to the board, which makes it compatable with picaxe.(RS232)

Pete.

Sometimes it just works

Bub73

Senior Member

Joined: 10/12/2009
Location: United States
Posts: 116

Posted: 06:59am 04 Mar 2015

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Hi Pete,

Do you know if the HL-340 chip set will work on linux.
I have the axe027 cable and a couple pl203's but no joy as far as reliability, sometimes one will work for awhile and not the next, a pain for logging.

Bob

Downwind

Guru

Joined: 09/09/2009
Location: Australia
Posts: 2333

Posted: 12:45pm 04 Mar 2015

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Bob,

The HL340 will work with linux, but there is no drivers for linux supplied.

I know of others setting up their own form of driver in linux but dont know myself.

Most times why the cable stops working (more so with laptops) is the settings for USB "Power Saving" which you should be able to turn off in controls to solve the problem.

Pete.

Sometimes it just works

Karma101
Newbie

Joined: 27/02/2015
Location: United States
Posts: 2

Posted: 01:56pm 04 Mar 2015

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Thanks for the response. I did find the cable you recommend. The reason I went with the 28x is. It was the chip Gizmo used to make his charge controller for his wind turbine and he also has the code for it.So I thought why not use the same thing. His controller has been working a long time now.
I remember back in high school we had a class on Basic and I enjoyed it. And when I got into building my own wind turbine I thought it would be fun to get into electronics. I want to build a charge controller and a data logger first. Then with the free power run all my outside electric IE water fountain and pumps the lights around my fire pit charge all my battery operated tools. With the picaxe system I can make them really cool.

Bub73

Senior Member

Joined: 10/12/2009
Location: United States
Posts: 116

Posted: 02:00pm 04 Mar 2015

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Pete,

Thanks for the reply, I'll let you how it goes.
I think my axe027 cable may be faulty; but I'll try the upower -1 trick on the others.

Bob

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