article

Rob Duthie posted Jan 8, '20

Victron Raspi HAT

Hi All

Progress on the the Raspi HAT code name is called the Stetson as it does not follow the Raspi HAT

protocols, so i named it the Stetson due to space constraints in the PCB design with all the relays and plugs and sockets required etc.

It has the following inputs and outputs canbus PSU etc. All has being tested and confirmed working OK to date. as of version on Venus Ver 2.60. release and 2.66 candidate. All OK, For Later Version >2.66 there are issues that not all works as it used to. Update some progress with new version >2.66 to 2.80.19

As in Bold all working again except the VE direct I2C ports USB is OK.

2x Temperature using the the LM335 devices: Working OK on Ver 2.80.24 Added 4 temps

3x Tanks resistive: Working OK on Ver 2.80.24 Added 4 tanks

5x Digital Hi ports all isolated with pulse counting etc: Working OK on Ver 2.80.24

1x Canbus port Working: OK on Ver 2.80.24 on USB and SPI ports

2x VE Direct ports: Not sorted yet with software USB OK but

6x relays outputs: Working OK on Ver 2.80.24

1x PSU from 10 to 55vDC to be upgraded to higher voltage 75vDC

Attached schematic for you information.

Options for the future: buzzer indicator, code is there just need some time to redirect the code to the right GPIO pins to make it work.

The PCB design is almost complete, it will mount in a din rail enclosure and a main 40 pin ribbon cable will connect between the Raspi and the Stetson. Updated PCB files with VE direct ports.

Update 20/10/2021 Schematic updated to full 6x relays on board and new PSU module and the 4x Tank and 4x Temp sensor inputs. Digital input circuit change, PCB is done, BOM done.

Victron Raspi Hat.pdf

Victron Raspi Stetson.pdf

Regards

Rob D

Victron Raspi Hat.pdf

Victron Raspi Stetson.pdf

Raspberry Pi

victron-raspi-hat.pdf (673.2 KiB)

victron-raspi-stetson.pdf (701.4 KiB)

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jimmyendt commented · Jan 11 at 10:03 AM

Hello,

I've searched this forum thoroughly, looking for upgrades on my raspberry pi venusos installation. This raspberry pi HAT seems awesome. I've already contacted Rob Duthie

He told me there are some people making these awesome boards? Is there a way to buy a board somewhere? Would like so very much!

Thanks in advance,

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jondrane jimmyendt commented · May 07 at 10:17 AM

Hi Jimmy, did you ever get the information? I am in the same situation and have got some temp sensors working on my pi4. I really like the look of the all in one hat by Rob. Do you know if these are available for purchase?

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Mark commented · Oct 14, 2020 at 09:18 AM

Thanks Rob.

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s-exley Mark commented · Oct 14, 2020 at 01:16 PM

Hi Mark,

I've sent you an email, if there's anything I can do to help, let me know.

Cheers
Simon

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sv-soleil Mark commented · Mar 11 at 09:24 PM

I stumbled onto this thread as I am trying to connect a MCP3208 to RPI. Would @Rob Duthie or anyone be able to explain in basic terms the role of the 10K ohm resistors?

I’m assuming they slow down the flow of current into the MCP3208 but the exact nature of the need for this is beyond my understanding. In other words why 10K and not some other value? Thanks.

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img-7258.jpeg (297.6 KiB)

Vincent Royer commented · Jan 09, 2020 at 09:34 PM

Looks awesome. Can I make some suggestions?

- 2 x CAN, isolated, like the Octo-GX, using RJ-45 connectors, or a board-mounted dip for termination resistor

- Ideally a whole other isolated CAN that can be a different speed (for can-bms and can-xxx at the same time)

- ve-direct ports that dont peel off the board when you look at them wrong like the ones on Octo-GX

- PSU with a +12V output as well for integration w/ the relays

- smd LEDs on the board at each input / relay output to show state

- if you can put all connections on one edge, otherwise it doubles the size of the install

- don't use spring connectors, use screw types and oversize them

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Rob Duthie Vincent Royer commented · Jan 09, 2020 at 11:14 PM

Hi Vincent

Answers in bold

- 2 x CAN, isolated, like the Octo-GX, using RJ-45 connectors, or a board-mounted dip for termination resistor. I will look into a dual isolated depends if another interrupt is required or not. I have already a 120 ohm jumper on board. I am using hard wired screw header connector

- Ideally a whole other isolated CAN that can be a different speed (for can-bms and can-xxx at the same time) as above, i have testing the canbus with a pylon US2000 with the USB port and direct canbus port both work OK, it will need some extra code to add the can0 and can1 ports? so far it is bullet proof with just can0 running.

- ve-direct ports that dont peel off the board when you look at them wrong like the ones on Octo-GX:Only have one serial port to work with for the VE direct port i will add a isolated serial port to suit RJ45 connector OK or screw terminal?

- PSU with a +12V output as well for integration w/ the relays: Can be added means another DC to DC converter PSU has to added to what current are you looking at 1Amp?

- smd LEDs on the board at each input / relay output to show state: Yes i was thinking about that and now will add into the design.

- if you can put all connections on one edge, otherwise it doubles the size of the install: I have used a dual edge Din rail enclosure to keep the PCB small, enclosure 125x90mm. other wise i will have to use a lot longer enclosure, due the size on the connectors i am using, i could use micro connectors, but is tight for the larger wires sizes there are trade offs.

- don't use spring connectors, use screw types and oversize them: I have used plug and header socket with spring terminals as standard. which take the larger wire sizes. These are duel in line to save space for the Analog and DIO ports the relays are screw terminal header plugs.

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nebulight commented · Jan 17, 2020 at 07:03 PM

Awesome! Sign me up!

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Rob Duthie commented · Jan 17, 2020 at 11:42 PM

Hi All

Note: Updated Schematic file with all the extras included.

VE direct port x1

Can bus port x1

LED relay indicators x4

Extra 12 V independent PSU for use with relay outputs if required.

Regards
Rob D

NZVictron Raspi Hat.pdf

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victron-raspi-hat.pdf (1.2 MiB)

nzmikec Rob Duthie commented · Jan 25, 2020 at 01:09 AM

Looks awesome! Im keen to build one of these up. @Rob Duthie have you had PCB's built? Do you plan on selling a kit or sharing the greber files? JLBPCB have a build service ive used in the past, not sure if they will have the chips in your design tho.

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Rob Duthie commented · Jan 26, 2020 at 08:24 PM

Updated schematic due small change in on of the spi ports select port CS1 not being assigned to the correct device.

Victron Raspi Hat.pdf

Regards

Rob D

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victron-raspi-hat.pdf (947.3 KiB)

laurenceh Rob Duthie commented · Jan 26, 2020 at 09:09 PM

Rob
do you know the answer to my separate thread about getting dbus-adc directory for the Rpi I have a card with the chip on ( and driver I think) but need this directory to get Venus os to recognise it.

Thanks

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mihair commented · Jan 27, 2020 at 02:05 PM

Hi Rob,

May I suggest not using SI8422 plus MCP2551? They are not so reliable parts in ICS environment. Instead please use ISO1050 from TI

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Rob Duthie mihair commented · Jan 28, 2020 at 06:27 AM

The ICS stands for industry control systems? more robust device.

What is wrong with the MCP2551 device? this is what i have used and have no problems to date connecting to a Pylon tech BMS systems etc.

So you saying to use just the one combined chip with isolation and canbus, which would make sense and one less part to wire up etc.

OK i will take your advise, re do the schematics and PCB, and up load later.

Regards

Rob D

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pau1phi11ips commented · Jan 28, 2020 at 11:14 AM

Sounds awesome, gonna be better than the CC GX at this rate!

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rvoosterhout commented · May 06, 2020 at 09:05 AM

Hi Rob,

This looks amazing! Do you have any updates on the Stetson? I would love to use this, but I have no experience with PCB ordering.

Rick

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rvoosterhout rvoosterhout commented · May 06, 2020 at 02:06 PM

Awesome Rob, i'm looking forward to it!

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captain-nemo commented · Jun 01, 2020 at 08:16 AM

Very nice initiative! I assume te RPI is powered via the Stetson board, I know on RPI there is a fuse to protect against overvoltage etc. located at the micro USB connector on the RPI, powering over the RPI header bypasses this fuse. Would this be useful to add a fuse on the stetson on the 5v pin that powers the RPI?

Oh, and what about gps? Is it possible to add another hat fo GPS or would USB GPS be the only option?

Cheers,

Menno

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Rob Duthie captain-nemo commented · Jun 02, 2020 at 12:16 AM

Hi Captain Nemo

Thanks for the feed back, looking at extra power protection etc. I do have over voltage protection built in, and a USB port which can be feed to the raspi directly etc. As the unit has dc to dc power regulators converters, external fusing is required as like the CCGX units have done.

Also there is a 12v 1amp feed output for the external relays coils etc.

The GPS works already by plugging in a USB GPS receiver type # BU-353S4 and these work very well with no issues to date.

Updated files below.

Regards

Rob D

Victron Raspi Hat.pdf Victron Raspi Stetson.pdf

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victron-raspi-hat.pdf (602.1 KiB)

victron-raspi-stetson.pdf (593.5 KiB)

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Rob Duthie commented · Jun 02, 2020 at 10:30 PM

Their have being some changes we have now 6x relay outputs and added a USB port for power only. And a 12v external supply for relay coils to use.

Victron Raspi Stetson.pdf Victron Raspi Hat.pdf

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victron-raspi-stetson.pdf (593.5 KiB)

victron-raspi-hat.pdf (602.1 KiB)

captain-nemo Rob Duthie commented · Jun 04, 2020 at 06:54 AM

Looks ok to me, don't see any issues.

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dennis-brok Rob Duthie commented · Jun 15, 2020 at 11:54 AM

all i need is the parts list and the gerber file and ill test this

ig you sell a kit anywhere send me the link and ill order it

thanks for youre input and work in making this

i have the victron bmv 712 the 100/30 mppt smartsolar the 12/12-30 amp dc to dc charger and a raspberry pi3 b+ with the 7 inch touch screen running venus i want to add 2 tank (drinking and grey water) with temperature and lvl and a remote start for my generator maybe a extra temp sensor and then look at what more i can add on

thanks again

dennis

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dennis-brok Rob Duthie commented · Jun 15, 2020 at 12:47 PM

will we be able to buy a kit for this somewhere ?

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dennis-brok Rob Duthie commented · Jun 15, 2020 at 12:58 PM

so just to be clear

this will add 6 output relais

2 temp inputs

3 tank inputs

2x Digital Hi ports all isolated with pulse counting

3x Digital Low ports all isolated with pulse counting

1x canbus portand

and a psu input

this sounds amazing if this would work with the rapberry pi3 running victron venus

cant wait to build or get one

but where to get it

greetings

dennis (holland)

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hector Rob Duthie commented · Oct 21, 2020 at 08:03 AM

Hello rob!

Thank you so much for your work !! It looks very well executed.

I am trying to connect an MCP and a couple of sensors to the raspberry and this is just what I was looking for. I have no problems with pcb production or smd mounting.

Could you send me the files to produce the pcb?

Thank you very much again for your time.

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jayy169 Rob Duthie commented · Mar 17, 2021 at 09:53 AM

Is it possible to get the gerber files sent over to joel@smarterconsulting.wales

Thanks!

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matt-kay commented · Aug 04, 2020 at 06:26 PM

Hi @Rob Duthie any update on when this will be available to purchase?

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Rob Duthie matt-kay commented · Aug 04, 2020 at 08:27 PM

Hi Matt

Yes the PCB design is done i have a person in the UK who is getting some made to test.

As i have being busy working on other jobs and projects and have put it to one side until i getting PCB costing done etc.

I am am based in New Zealand.

The design is open source, you are welcome to use files to get some made.

I will up an link to down load etc.

Rob D

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s-exley commented · Oct 14, 2020 at 08:25 AM

Hi Rob,

I'm also in the UK and am interested in getting one of these hats, I'm quite happy to buy one or make one depending on what's easiest for you, if that was possible.

Cheers

Simon

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Rob Duthie s-exley commented · Oct 14, 2020 at 08:32 AM

There is guy called Mark Bramfield who has my design there and he is getting some PC done.

Regards

Rob D

N Z

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nick-peck commented · Oct 16, 2020 at 02:42 AM

also interested in purchasing one of these

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p0lar commented · Oct 18, 2020 at 05:18 PM

how do we get one?

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Steve commented · Nov 19, 2020 at 04:28 PM

Thank you very much for all this research and development !!! I too would be interested in buying one !!! I am from Canada. You can contact me at: teardrop-quebec@hotmail.com

Thank you !!!

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Rob Duthie Steve commented · Nov 19, 2020 at 07:41 PM

Hi Steve

As you have a hotmail account it gets blacklisted.Victron Raspi Hat.pdf Victron Raspi Stetson.pdf

As attached information. i did have a guy in the UK getting some made, not sure were he is at.
As you can see by the schematic to what it can do etc.

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victron-raspi-hat.pdf (593.1 KiB)

victron-raspi-stetson.pdf (601.5 KiB)

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aph commented · Mar 28, 2021 at 09:51 PM

Hi all,

I was wondering if anyone has had a few of this awesome Victron hat produced and would be willing to sell one to me?

I am sure there are some more fellows here in the forum who would buy one.

CU,

Arne

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Rob Duthie aph commented · Mar 29, 2021 at 07:59 PM

Hi Anre

Yes had to add some extra analog inputs which i have not finish yet.

Regards
Rob D

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Ralf Klüber commented · Apr 03, 2021 at 03:53 AM

This is brilliant. Thanks for sharing.

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Kevin Windrem commented · Apr 26, 2021 at 10:38 PM

I know this is very late in the game but I was wondering if it would be possible to provide the option of converting the tank sensor inputs to temperature sensor inputs. It appears the only electrical difference is the pull-up resistor on the input. Through hole parts would be easier to change out, or maybe you could provide a jumper to select the correct pull-up.

I have a SeeLevel tank system so there's no need for the tank inputs but can see using at least 4 inputs for temperature sensors around the RV: inside/outside temps, refrigerator/freezer.

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Markus commented · May 27, 2021 at 02:55 PM

Thank you for your schematics I created another layout for mounting on Raspberry Pi 7" touchscreen with 100x160mm PCB.

I made a few changes to the power supply like the Venus GX with LM5085. With the SC16IS752IPW I connected the 3.3V, 5V on the circuit diagram is not correct, see data sheet.

I created the new layout with my program Target3001 but I can also export the data to Eagel

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Warwick Bruce Chapman Markus commented · May 27, 2021 at 08:23 PM

Exciting! I'm looking forward to this :)

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Rob Duthie Markus commented · May 27, 2021 at 09:23 PM

With Ver 2.70 the I2C and serial ports and SPI USB don't work anymore after they added the onboard bluetooth function which knocks out the UART ports.

My unit PCB fits into a Din rail mounted case. And am looking at up grading the onboard PSU to a higher voltage input rating to 75v

Ver 2.66 is all OK

Regards
Rob D

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Werner Keller commented · Jul 07, 2021 at 11:40 AM

Hi Rob,

what a great project - congrats.
I followed the story and all the progress you made so far.
Raspi, Venus and Victron components are ready for my camper van.
Currently running venus 2.66.
There are many approaches to connect and controle devices of any kind. But your Victron Raspi Hat appears to be the right choice to cover (almost) all needs.
It will definitely ease my life.

Therefore I would like to kindly ask for the latest pcb- and BOM-files.
mail to: wk.nt@bluewin.ch

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David commented · Jul 13, 2021 at 08:50 AM

Does this project have a home page? It’s hard to follow this massive thread to see where it’s at or what’s the latest file versions?

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johnwi commented · Jul 14, 2021 at 07:40 PM

Hello Rob, I have no experience to produce a pcb and soldering smd components. Is it a posibility to produce this so that we can buy a complete hat?

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Warwick Bruce Chapman commented · Oct 14, 2021 at 08:26 AM

Thanks for the update Rob!

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marco-lingua commented · Jan 25, 2022 at 08:35 PM

Hi, I have installed version 2.80-41 on my 3b + rbi. I would like to be able to operate the analog inputs to connect the clear water probe and a relay to control the switching on of the pump. In addition to following the wiring diagram for the connections, what should I set on RPI and how. I tried to understand by myself by reading the tread but I can't get over it. The ideal would be to have a step by step guide on the steps to follow. I need help!

Thank you

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courty commented · Feb 09, 2022 at 12:06 PM

I've just got Venus working on a Rasp Pi 3 and would be very interested in the hat / helping

Anything I can do to help ?

Courty

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Rob Duthie courty commented · Feb 16, 2022 at 08:23 PM

What is your speciatly ?

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dennispochenk commented · May 13, 2022 at 12:52 PM

Dear Rob Duthie, i've been following a lot of your posts and you are doing great work for this community, can i ask if you can send me this PCB with the SMD parts already soldered?
I have no problem paying for the work, soldered parts and shipping.
I will solder the THT parts myself as they could increase the chance of damage in shipping
You can reach me through email at dennispochenk@gmail.com and i can do Paypal of Bank transfer.

And maybe one note on what could be improved: The mounting holes for a shielded RJ45 bus connected to ground are missing, adding the posibility of using a shielded cable would lower the chance of interference with devices along the CAN cable and would always be optional.

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eicke commented · May 24, 2022 at 06:40 AM

Hey Rob,

I would be very interested in the gerber files for this project. I'm an embedded Software developer by profession so in exchange i might give you some help integrating it into venus os. I'm also working on getting a sim7600 hat with 4g+GPS working with venus OS

You can chekout my github profile

https://github.com/KorribanMaster/venus-sim800

my email would be eicke.hecht@gmx.de

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user5575 commented · Jun 28, 2022 at 08:50 AM

@Rob Duthie how do we contact you?

Cheers, mark@estasmania.com

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josef-svatuska commented · Jul 15, 2023 at 02:44 PM

Hi Rob,

was there any update lately? Did you test the HAT with Venus os v3.0?

Is it possible to buy whole product or pcb/parts?

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ruffrider commented · Oct 26, 2023 at 02:51 PM

I would be very interested in the gerber files for this project.

If possible send to w.wullaert@gmail.com

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eurodiagnostyka ruffrider commented · Nov 04, 2023 at 07:30 AM

Has anyone received the project in Gerber?

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martinten commented · Dec 16, 2023 at 09:39 PM

Please send the gerber, bom anf pick&place files to

martin@tenbrock.net

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xaxar commented · Jan 24 at 06:49 PM

¡Trabajo fantástico!

¿Podrías enviar el archivo gerber?

jjsalar@gmail.com

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brinet commented · Mar 11 at 10:55 PM

Are these available for purchase? I have read through this topic, but admittedly this form of communication is horrible at best. Comments are scattered throughout with no clear timeline that is discernible.

I’m interested in a finished product, if available.

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