Diagrams?

[madisdev]

Hey Jason,

This is awesome! I see you are missing a wiring diagram. If you want to post something simple I could mockup a fritzing(or similar) for you.

[jgyates]

Thanks. A wiring diagram would be excellent. Pin 8 on the Evolution Controller is Transmit from the Evolution Controller (on mobile link this is black). Pin 7 (white on mobile link cable) on the Evolution Controller is Receive. Since I used the built in serial port on a Raspberry PI, which is a TTL signal on the expansion header, I used a level converter to get the signal to a RS-233 level. I used this one:
https://smile.amazon.com/gp/product/B00EJ9NAKA/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1

From there connect RS-232 transmit (DB9 pin 3) to Evolution Receive (Molex pin 7), and RS-232 receive (DB9 pin 2) to Evolution transmit (Molex pin 8).

The cable used for mobile link and my implementation do not use a ground in the cable so it is important to make sure that the raspberry pi (or other embedded device) is using a ground common to the generator battery, otherwise communication errors will result. I used this to power the raspberry pi:

https://smile.amazon.com/gp/product/B01DYE54LI/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

This allows for a common ground between the raspberry pi and the generator battery.

[madisdev]

I'm glad I can assist. I've had this project in my head for awhile now. But never got around to messing with the generator modbus stuff(I bought the parts though :|) Please bear with me I want to make sure I got the wiring correct....Im ignoring some of the adapters I just want to get the wiring down first. Raspberry PI RX -----> |RX-(RS232 to TTL)-TX|-----> Molex Pin 7(RX) Raspberry PI TX -----> |TX-(RS232 to TTL)-RX|-----> Molex Pin 8(TX) Is that it? Madis

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On Sat, Mar 18, 2017 at 7:21 PM, jgyates ***@***.***> wrote: Thanks. A wiring diagram would be excellent. Pin 8 on the Evolution Controller is Transmit from the Evolution Controller (on mobile link this is black). Pin 7 (white on mobile link cable) on the Evolution Controller is Receive. Since I used the built in serial port on a Raspberry PI, which is a TTL signal on the expansion header, I used a level converter to get the signal to a RS-233 level. I used this one: https://smile.amazon.com/gp/product/B00EJ9NAKA/ref=oh_aui_ detailpage_o03_s00?ie=UTF8&psc=1 From there connect RS-232 transmit (DB9 pin 3) to Evolution Receive (Molex pin 7), and RS-232 receive (DB9 pin 2) to Evolution transmit (Molex pin 8). The cable used for mobile link and my implementation do not use a ground in the cable so it is important to make sure that the raspberry pi (or other embedded device) is using a ground common to the generator battery, otherwise communication errors will result. I used this to power the raspberry pi: https://smile.amazon.com/gp/product/B01DYE54LI/ref=oh_aui_ detailpage_o00_s00?ie=UTF8&psc=1 This allows for a common ground between the raspberry pi and the generator battery. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#1 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AQsM1-JORSTyldmcGIpRth6cDp5Cc2Mzks5rnGbdgaJpZM4MhkFp> .

[jgyates]

That is almost there. Here is what I would put:

Raspberry PI RX -----> |RX-(RS232 to TTL)-RX|-----> Molex Pin 8(TX)
Raspberry PI TX -----> |TX-(RS232 to TTL)-TX|-----> Molex Pin 7(RX)

This keeps the TX and RX a strait path until it leaves the enclosure (i.e. TX from RPi -> TX level converter -> RX on Controller.

Thanks for you help. I updated the readme with some clarity (I hope).

[madisdev]

Here is what I came up with. Nothing crazy. I'm not so focused on the DB9 and molex connectors, I just want to make sure people understand the flow of TX-RX. [image: Inline image 2] I think in the next version I should show the molex pin outs as I'm not sure people know which pins are which. I had seen someone on the gardenweb discussion had posted a pic of the molex for the mobillink. Just to confirm its 7/8 from this pic: [image: Inline image 3] If you agree on the wiring diagram I'd like to do a pull request to add it to github if that's ok. ​

[jgyates]

You are correct about pins 7/8 from the gardenweb discussion picture. I agree that clarification is needed on the pins. Once I got my connectors from Digikey the are marked with the pin numbers but they marking is extremely small. I have a mobile link with the cable so this helped me figure things out regarding the pin out.

Regarding the pull request, you bet. Fire away when you are ready.

[madisdev]

Cool, do you need to give me permission to do pull request or commit? I tried an it seems like I'm either doing something wrong or I don't have permission. Thanks.

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On Sat, Mar 18, 2017 at 10:46 PM, jgyates ***@***.***> wrote: You are correct about pins 7/8 from the gardenweb discussion picture. I agree that clarification is needed on the pins. Once I got my connectors from Digikey the are marked with the pin numbers but they marking is extremely small. I have a mobile link with the cable so this helped me figure things out regarding the pin out. Regarding the pull request, you bet. Fire away when you are ready. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#1 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AQsM14GFH9yLPF4GGzJpewfTXUpPrBl9ks5rnJbsgaJpZM4MhkFp> .

[jgyates]

I added you as a collaborator. I think that will do it. This is my 1st github project so if that does not work let me know.

[jgyates]

Thanks for the diagram!

[madisdev]

I see you added some pics that's cool & helpful. I'm going to update the diagram to show you using the 5v and ground from PI to the RS232 converter.