Epever RS485 to wifi adaptor v1.7

Name: Epever RS485 to wifi adaptor v1.7
SKU: 13715
Price: 20.00 USD
Availability: InStock
Rating: 4.89 (7 reviews)

(7 Reviews)

This is a DIY RS485 to wifi adaptor which allows you to connect to your EPEver controller over wifi.

Designed by Colin Hickey in United Kingdom

2020-09-18T09:46:44.800Z-Initial screen.PNG

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This is a DIY RS485 to wifi adaptor which allows you to connect to your EPEver controller over wifi.

EU Shipping Please be aware that tindie has not put anything in place for collecting VAT so all items shall be sold as zero vat so the buyer is responsible for any local charges. CAN NOT ACT AS A P…

EU Shipping Please be aware that tindie has not put anything in place for collecting VAT so all items shall be sold as zero vat so the buyer is responsible for any local charges.

CAN NOT ACT AS A PASSTHROUGH

I have taken the previous design utilising an RJ45 socket and expanded it so that it is now surface mount only and utilises the popular wemos D1 mini which allows easier flashing and connectivity as it has a usb port built in. I will not be including a network cable as that is better sourced locally.

The next major change is that another device is no longer required if all you wish to do is check how your solar is doing, check your historical statistics or even switch the load on and off. This fits nicely if you have a solar setup where you would not want to be running a raspberry pi or similar just to connect to the charge controller. If you do have a more advanced setup however you can configure the device via the web interface to post the data direct to an MQTT or influxdb database. With this change however you can no longer use socat or similar to connect to the device and it has to either be viewed via the web interface or data pushed directly to MQTT or influxDB. If there is demand i can create another product which would support passthrough.

Many EPEver solar charge controllers have an RS485 communication port on them so you can connect a PC or Android device and read it’s statistics or update the settings.

Compiled code is available here: - Link If you wish to print the case yourself the files are available at Link

Available as assembled only currently due to SMD design

What's included?

1x Assembled EPEVER RS485 to ESP8266 board
1x Wemos D1 mini (Optional and limited supply)
1x 3D printed enclosure (Optional)

The boards have been tested on the landstar and tracer controllers, I have not been able to test it with the new common negative tracer model.

It has been confirmed tested and working on the following boards - LS1024B - Tracer 3210A - MPPT Tracer1210 - Tracer AN - TRIRON Series with RS485 module

Why did you make it?

With the previous product it was a passthrough and as such required a raspberry pi or PC running permenantly to connect via socat or similar to pull the data. This new system allows the data to be viewed via the web interface without the need for a pi or PC but it can also push the data to MQTT or influxDB. This means if your PC or Pi reboots or is offline for any time the device will push the data as soon as it's back up without the need to restart services/reconfigure.

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Colin Hickey Shipping Policy:

Products are normally shipped next working day, however during busy periods this may extend slightly. Due to Covid still causing issues shipping can take upto 6 to 8 weeks so please bear that in mind before chasing up where your package is. It should be far quicker but please keep this in mind.

Tracked or Tracked & Signed options are available to most locations. This may not get your kit to you any quicker, but it adds peace of mind that you know where it has got to especially due to Covid delays.

It is your responsibility to pay any import duty or other taxes where appropriate.

Important note for European Union customers Tindie is unable to comply with new EU tax regulations, so you will have to pay VAT on your order to your local carrier when it arrives in your country. You may also have to pay import duty too. This is a legal requirement.

Review Breakdown

Average Ratings

Product: (5.00)

Documentation: (4.86)

Shipping: (5.00)

Communication: (4.71)

Yoshifumi | June 30, 2023

Essential device

Hello. Apologies for my poor English.
I respect Mr Colin's maintenance and communication with users on Discord.
I purchased Colin's RS485-WiFi module and used it on my EPEver Tracer AN3210 series. This was what I was looking for in terms of UI, functionality and size. It is an essential device for me and It has been in use for a full year and is now in its second year of use and am very happy with it. Due to the incredible increase in electricity prices due to the war in Ukraine, I bought an additional charger with a maximum of 60A as I plan to add more PV and generate more than 30A. We bought a PWM type controller and an MPPT type controller, both from EPEver, which have RS485 terminals and can connect an MT50 monitor.
I am going to try now that both can be monitored with the RS485-WiFi module.
Question for Colin. My only problem is that the start time of the day has shifted and it is now 7:00 am and the month starts on the 4th and I want to fix this, I unplugged the RS485-WiFi from the charger connector and reconnected it, but this did not fix it, so I unplugged the battery connection and the solar connection that feeds the charger and disconnected the power completely. Is the solution to disconnect the battery connection and the solar panel connection that feeds the charger and disconnect the power supply completely and reconnect it again? I would do this at the beginning of the month.

David | Feb. 14, 2023

Works very well on 4210AN controllers.

Plug and play in my 4210AN controllers.
I tried it on several of my controllers and it worked well on all of them.
dmh

Csaba | May 3, 2022

Great product not for AN series.

I purchased this for an epever tracer 3210AN. For the RJ45 the right pinout is T568B. However the COM port of the Tracer AN can only supply 100mA. This is not enough for the ESP8266 WIFI to work so it will freezee. If you supply enough current with other power source then it works great. Need to redesign this in order to work with Tracer AN series out of box.

Response from Colin Hickey | May 3, 2022

Hi,
Is it a brand new AN series as there are many people using it with AN models currently. I’m wondering if they have made a change to all models going forward.

Thanks
Colin

Andrew | May 4, 2021

Tidy, Neat, and integrates well

I purchased this to work with a 50A Tracer. It's replicated and more the internal metering available on the MT50 and I'm using it to publish directly to MQTT where home-assistant takes over any plotting and status changes.

Delivery to AU was good (covid delays considering), the 3D printed case needed a very minor tweak to get the USB outlet aligned for programming the latest lolin D1 minis, but in normal production use (one RJ45 cable from the charge controller), this is a non-issue.
The discord community is active, and there's a steady stream of minor tweaks and improvements happening on GitHub.

"Yes, I would buy again" :-)

Volker | June 13, 2019

alles o.k.

Bin sehr zu frieden , ein schönes bauteil. es funktioniert sehr gut . die beiliegende Anleitung zur Inbetriebnahme war sehr hilfreich

Brett | Feb. 5, 2019

Perfect!

I ordered this to test with a BN series common negative charge controller - it works perfectly!
It arrived pre-programmed with ESP-Link firmware, setup was as simple as connecting to the ESP wifi, browsing to the ESP's web interface on http://192.168.4.1 and setting the name and password for the network I wanted to connect it to.
I'm using socat on linux to connect the virtual COM port and Colin's scripts to dump data into InfluxDB for graphing in Grafana.

This is a well designed solution and I look forward to purchasing more when they're available.

Michael | Oct. 30, 2018

Easy to assemble, works great

I'm using this on an Epever Triron 30amp N series. Make sure to watch the associated videos on YouTube. You will need a programmer to configure the ESP8266, though I just wired up a USB to TTL adapter (https://randomnerdtutorials.com/flashing-nodemcu-firmware-on-the-esp8266-using-windows/) and it worked fine. I had the best results with the commercial COM2TCP program by Astrogeeks, referenced in the video. I also found that I had to run the Epever monitor in supervisor mode for it to work properly. Once its all said and done, it works great.

Response from Colin Hickey | Oct. 30, 2018

Hi Michael, Thank you for the positive review. I've configured all ESP modules up with esplink prior to dispatch so it should have already had the firmware on. I was using 2.2.3 but have moved to the newer 3.x versions for the revised pcb design. Regarding the com2tcp if you checkout my later videos I've had great success with the free application HW Virtual Serial Port. I shall put this on the listing also with some more instructions also.

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