Support

I am considering buying the new juicebox retrofit board to get myself started in the OpenEVSE world. I have exactly zero experience with OpenEVSE, and some experience with DIY electronics (ESP-home).

Could someone help me figure out, before I jump in:

* Is that board all-inclusive, or is any additional hardware required?

* Is it compatible with a screen, or at least a button?

* Is it pre-flashed, or do I need to get a programmer too? Which one?

Thanks in advance.

Still have not worked out the "current" issue, so for now, it is way off, I have a question about the temp sendors, all my ones show zero on the web page, do I have to add them?

Thanks great support

Where on the board would this plugin, Can I use any other temp sensor? Can I suggest you add the extra add ons to the text of the shop page, I would have added them to the basket when I ordered the board. Shipping costs are a killer.  Your great board looked like it had all the bits on it ... :) 

Sorry to say after only 2 charges this board has now stopped working.

Seems to be stuck in "Starting" mode and will not detect the car.

I restarted via power off, waiting 5 min and starting the unit, I got the GFCI Error, then switched to manual mode and the error went away.  However, it will not go past the starting mode. Of note the 2 LEDs, flash red with the GFCI error, then purple then off.

I then tried the DEV firmware update to see if that would fix it, no luck.

Looking for suggestions, could I have a faulty board? 

I have attached my debug export.json file, do you need anything else?

Looking forward to getting this unit back in working order.

Here is my status

{"mode":"STA","wifi_client_connected":1,"eth_connected":0,"net_connected":1,"ipaddress":"192.168.xx.xx","macaddress":"x","emoncms_connected":0,"packets_sent":0,"packets_success":0,"mqtt_connected":1,"ocpp_connected":0,"rfid_failure":0,"ohm_hour":"NotConnected","free_heap":177000,"comm_sent":5846,"comm_success":5846,"rapi_connected":1,"evse_connected":1,"amp":0,"voltage":249.1000061,"power":0,"pilot":6,"max_current":6,"temp":0,"temp_max":false,"temp1":false,"temp2":false,"temp3":0,"temp4":false,"state":0,"status":"active","flags":512,"vehicle":0,"colour":0,"manual_override":1,"freeram":177000,"divertmode":1,"srssi":-37,"time":"2025-05-22T13:43:18Z","local_time":"2025-05-22T23:13:18+0930","offset":"+0930","uptime":5443,"session_elapsed":0,"session_energy":0,"total_energy":102.0949909,"total_day":0,"total_week":33.51429103,"total_month":102.0687103,"total_year":102.0687103,"total_switches":38,"elapsed":0,"wattsec":0,"watthour":102094.9909,"gfcicount":0,"nogndcount":2,"stuckcount":0,"solar":0,"grid_ie":0,"charge_rate":0,"divert_update":5443,"divert_active":false,"shaper":0,"shaper_live_pwr":0,"shaper_cur":0,"shaper_updated":false,"service_level":2,"limit":false,"ota_update":0,"config_version":1,"claims_version":3,"override_version":3,"schedule_version":2,"schedule_plan_version":2,"limit_version":1,"vehicle_state_update":5443,"tesla_vehicle_count":false,"tesla_vehicle_id":false,"tesla_vehicle_name":false}

I have removed all timers and no solar divert, the MQTT is just to set the voltage value. I also get the No Ground fault but have checked all parts that need ground and all are valid.

When you change from start to manual mode faults are cleared.

As noted it has worked twice but now will not with no changes to the hardware setup.

I just restarted the unit and get the following, no count on the GFCI error but it is displayed.  

Fault will go away, but will no longer detect car or change from starting

Sorry for all the posts - an update.

After I disable the GFCI and Ground test the unit is working as it should.  

Can you suggest why this may be the reason? 

Do you have some suggestions on what I can do to test that the board is working? 

Any reason why it would work okay first and then start showing this fault?

Both connections are securely connected, I have also changed the stock test wire from one loop to 5 as recommended by your build instructions.

Happy that it is still safe and I can confirm the car charged overnight :)  

I have a question about the "Current Scale" and "current offset".  I know how to change it and can see the effect however to get the readings close to what my car is showing my current scale is set to 83. Do you have a link to explain the calculations around this or do I need to jump into the code.

I just upgraded a Juicebox v2 this weekend and the pilot connector seems to be incompatible with the board I received.  I submitted a ticket, but so far have not heard anything from them.

I just installed the OpenEVSE board for a Juicebox v2. Unfortunately, the pilot connect is very different and incompatible. I have reached out to support, but so far have not heard a response. Anyone else have this issue?

Another question, the pilot wire going to the cable to the car is a heavy gauge, is there really a lot of current that goes through this wire?