The solution was in the mailbox today: M5Stack ESP32 Core Ink
It offers:
So I'm going to migrate my code from the ESP32 OLED to the M5Stack device.
In parallel I have to adapt some of the node-red flows, but this is the easy part.
This might take another month. We'll see. Stay tuned.
Good day
I would like to ask if it would still be possible to insert flow data here.
I plan to follow the charging of my vw e-golf like this. If that doesn't matter I would use your pattern.
Thank you, Zoul
Hello Zoul
From the posts I make you can use whatever fits your needs.
I stopped working on that project since my wife uses the car now very often to go to work. This means it needs to charge during the night when she is back with the car. Since the sun is down anyway, there is not a lot I can do to make the charging more cost effective.
In addition Tesla changed the authorization in the API and the node-red-contrib-tesla node did not work anymore.
This is fixed and I tested it a few days ago.
It is possible now to set not only the charging limit, but also the charging power in Ampere. That way I could almost exactly use the excess power generated by the solar panels. But since the car is usually not here when the sun shines, this remains just a nice programming exercise.
And for exercise only, I do not have the motivation currently. This might change. So stay tuned.
Thank you for the quick reply.
It would be more convenient for me if you still have access to the same flow and you could export and paste it here.
Thank you, Zoul
https://nodered.org/docs/user-guide/editor/workspace/import-export
OK, now I understand what you wanted. Here is the current state of my work.
I did work at some stage, but I did not get it to work as I wanted. See my note above.
This is part 1:
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{{background}}","icon":"","payload":"100","payloadType":"num","topic":"data/Tesla/charge-config","topicType":"str","x":720,"y":820,"wires":[[]]},{"id":"8565cabe.0e8de8","type":"ui_button","z":"4e139d26.c717a4","name":"batteryLevel","group":"a778a4f8.f945f8","order":2,"width":0,"height":0,"passthru":false,"label":"Battery Level: {{payload}}%","tooltip":"","color":"","bgcolor":" {{background}}","icon":"","payload":"100","payloadType":"num","topic":"data/tesla/batteryLevel","topicType":"str","x":710,"y":620,"wires":[[]]},{"id":"3c9e726b.979d8e","type":"function","z":"4e139d26.c717a4","name":"bg color","func":"var msg1 = {};\nvar msg2 = {};\nvar msg3 = {};\n\nmsg1.topic = \"data/tesla/chargeLevelFeedback\";\nmsg2.topic = \"data/tesla/chargeLevelFeedback\";\nmsg3.topic = \"data/tesla/chargeLevelFeedback\";\n\nswitch (msg.payload) {\n case \"90\" :\n msg1.background = \"#87A980\";\n msg2.background = \"#3FADB5\";\n msg3.background = \"#3FADB5\";\n break;\n case \"95\" :\n msg1.background = \"#3FADB5\";\n msg2.background = \"#87A980\";\n msg3.background = \"#3FADB5\";\n break;\n case \"100\" :\n msg1.background = \"#3FADB5\";\n msg2.background = \"#3FADB5\";\n msg3.background = \"#87A980\";\n break;\n}\nreturn [msg1,msg2,msg3];","outputs":3,"noerr":0,"initialize":"","finalize":"","libs":[],"x":520,"y":280,"wires":[["6c57ae0d.8bc56"],["de192bd0.332e"],["2b4617ef.a625c8"]]},{"id":"a153a136.ca2428","type":"mqtt 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battery charge limit","info":"","x":140,"y":680,"wires":[]},{"id":"9cee8d68.96e83","type":"mqtt in","z":"4e139d26.c717a4","name":"chargeLimit","topic":"data/tesla/chargeLimit","qos":"2","datatype":"auto","broker":"478a3533.38d8ac","nl":false,"rap":true,"rh":0,"inputs":0,"x":130,"y":720,"wires":[["455737be.000b2"]]},{"id":"455737be.000b2","type":"change","z":"4e139d26.c717a4","name":"bg color","rules":[{"t":"set","p":"background","pt":"msg","to":"#3FADB5","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":520,"y":720,"wires":[["a48d22db.66cf5"]]},{"id":"a48d22db.66cf5","type":"ui_button","z":"4e139d26.c717a4","name":"chargeLimit","group":"a778a4f8.f945f8","order":1,"width":0,"height":0,"passthru":false,"label":"Charge Limit: {{payload}}%","tooltip":"","color":"","bgcolor":" {{background}}","icon":"","payload":"100","payloadType":"num","topic":"data/tesla/chargeLimit","topicType":"str","x":710,"y":720,"wires":[[]]},{"id":"8a06232c.8d7e08","type":"comment","z":"4e139d26.c717a4","name":"Initialize values","info":"","x":100,"y":20,"wires":[]},{"id":"edc00f47.55f78","type":"ui_button","z":"4e139d26.c717a4","name":"solar","group":"68636887.0bf5a8","order":1,"width":0,"height":0,"passthru":false,"label":"solar","tooltip":"","color":"","bgcolor":"{{background}}","icon":"","payload":"solar","payloadType":"str","topic":"data/tesla/chargeGoal","topicType":"str","x":690,"y":360,"wires":[["a6bde8a.ee4c618"]]},{"id":"de7503dd.578ec","type":"comment","z":"4e139d26.c717a4","name":"fetch PV forecast 1/h and fill array with 48h worth of estimates","info":"and store 12 hours as an array in global variable 'pv_estimates'.","x":250,"y":120,"wires":[]},{"id":"5472339.d14b14c","type":"config","z":"4e139d26.c717a4","name":"Solcast 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Tariff","properties":[{"p":"#:(storeInFile)::dataStatus.grid.importTariff1","pt":"global","to":"21.89","tot":"num"},{"p":"#:(storeInFile)::dataStatus.grid.importTariff2","pt":"global","to":"16.75","tot":"num"},{"p":"#:(storeInFile)::dataStatus.grid.exportTariff1","pt":"global","to":"6.75","tot":"num"},{"p":"#:(storeInFile)::dataStatus.grid.exportTariff2","pt":"global","to":"5.4","tot":"num"}],"active":true,"x":330,"y":60,"wires":[]},{"id":"af1f50a5.152818","type":"inject","z":"4e139d26.c717a4","name":"@start","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":true,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":120,"y":160,"wires":[["c0154659.c1cec"]]},{"id":"c0154659.c1cec","type":"function","z":"4e139d26.c717a4","name":"set tariff","func":"var tariffZone = [];\nvar i,j;\nfor (i=0; i<7*24; i++) {\n tariffZone[i] = 2; // initialize with low tariff\n}\nfor (i=0;i<5;i++) {\n for (j=7;j<20;j++) {\n tariffZone[24*i+j]=1; // set high tariff hours on weekdays\n }\n}\nfor (j=7;j<13;j++){\n tariffZone[5*24+j]=1; // set high tariff hours on Saturday\n}\nmsg.payload = tariffZone;\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":320,"y":160,"wires":[["b615f4ef.63f7a8"]]},{"id":"b615f4ef.63f7a8","type":"change","z":"4e139d26.c717a4","name":"store","rules":[{"t":"set","p":"#:(storeInFile)::dataStatus.grid.tariffZone","pt":"global","to":"payload","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":510,"y":160,"wires":[[]]},{"id":"80d79fb.eb5e4e","type":"mqtt 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state?","property":"#:(storeInFile)::dataStatus.tesla.chargeControl","propertyType":"global","rules":[{"t":"eq","v":"enabled","vt":"str"},{"t":"else"}],"checkall":"true","repair":false,"outputs":2,"x":940,"y":480,"wires":[["c321618d.affaf8"],["d999d2d8.47aec8"]]},{"id":"c321618d.affaf8","type":"change","z":"4e139d26.c717a4","name":"set disabled","rules":[{"t":"set","p":"payload","pt":"msg","to":"disabled","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":1150,"y":460,"wires":[["ac6458b7.6be9d8"]]},{"id":"d999d2d8.47aec8","type":"change","z":"4e139d26.c717a4","name":"set enabled","rules":[{"t":"set","p":"payload","pt":"msg","to":"enabled","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":1150,"y":500,"wires":[["ac6458b7.6be9d8"]]},{"id":"ac6458b7.6be9d8","type":"link 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And this is part 2:
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i<=48; i++) {\n solCast[i] = (msg.payload.forecasts[2*i].pv_estimate + msg.payload.forecasts[2*i+1].pv_estimate)/2;\n }\n solCastMsg.solCast = solCast;\n node.send(solCastMsg);\n} else {\n statusColour = \"red\";\n}\nnode.status({fill:statusColour,shape:\"dot\",text:statusCode});\n\nreturn;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":760,"y":980,"wires":[["47e84efa.a7094","b8e15b9c1693ad04","1cd2863e.55dfa2"]]},{"id":"518f9ab2.e6568c","type":"link out","z":"4e139d26.c717a4","name":"","links":["907c80c1.54e128"],"x":1195,"y":960,"wires":[]},{"id":"bc8b503c.d34fe8","type":"function","z":"4e139d26.c717a4","name":"set tariff48","func":"// fill an array with the tariff information for the next 48h\n\n//msg.payload contains a string \"weekday hour\"\nconst temp = msg.payload.split(' ');\n//node.warn(temp);\nconst weekday = parseInt(temp[0])-1;\n//node.warn(weekday);\nconst hour = parseInt(temp[1]);\n//node.warn(hour);\nvar baseTime = weekday * 24 + hour;\n//node.warn(baseTime);\n\nvar i;\nvar tariff48=[];\nfor (i=0;i<48;i++) {\n if (baseTime + i > 167) baseTime = 0;\n tariff48[i] = msg.tariff[baseTime + i];\n}\nmsg.tariff48 = tariff48;\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":850,"y":1100,"wires":[["ab86107.aa9d27"]]},{"id":"cab3dc94.91a388","type":"moment","z":"4e139d26.c717a4","name":"weekday hour","topic":"","input":"time","inputType":"msg","inTz":"Europe/Zurich","adjAmount":0,"adjType":"days","adjDir":"add","format":"E H","locale":"en-GB","output":"payload","outputType":"msg","outTz":"Europe/Zurich","x":460,"y":1100,"wires":[["d2da9e67.4702d8"]]},{"id":"ab86107.aa9d27","type":"change","z":"4e139d26.c717a4","name":"store","rules":[{"t":"set","p":"#:(storeInFile)::dataStatus.grid.tariff48","pt":"global","to":"tariff48","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":1030,"y":1100,"wires":[["bb1aaa50.966c7","c697d7ab.d7b858"]]},{"id":"d2da9e67.4702d8","type":"change","z":"4e139d26.c717a4","name":"get tariff","rules":[{"t":"set","p":"tariff","pt":"msg","to":"#:(storeInFile)::dataStatus.grid.tariffZone","tot":"global"},{"t":"set","p":"solCast","pt":"msg","to":"#:(storeInFile)::dataStatus.solar.solCast","tot":"global"}],"action":"","property":"","from":"","to":"","reg":false,"x":660,"y":1100,"wires":[["bc8b503c.d34fe8"]]},{"id":"bb1aaa50.966c7","type":"debug","z":"4e139d26.c717a4","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","statusVal":"","statusType":"auto","x":1190,"y":1100,"wires":[]},{"id":"47e84efa.a7094","type":"change","z":"4e139d26.c717a4","name":"-> data/solar/solCast","rules":[{"t":"set","p":"payload","pt":"msg","to":"solCast","tot":"msg"},{"t":"set","p":"topic","pt":"msg","to":"data/solar/solCast","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":1040,"y":960,"wires":[["518f9ab2.e6568c"]]},{"id":"4b6c9be7.3be0cc","type":"comment","z":"4e139d26.c717a4","name":"msg.* documentation","info":"at this stage the msg contains\nmsg.solCast with 48h solar energy forecast\nmsg.tariff48 with 48h of tariff zone information\nmsg.chargeState with Tesla battery data\nmsg.chargeLevel : the battery should be charged to this level\nmsg.chargeNeeded : difference between chargeLevel and actual batteryLevel in kWh\nmsg.chargeTime : time it takes to charge with 2 kW to the chargeLevel requested by the chargeGoal selected. 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msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":300,"y":1580,"wires":[["b68345c3.7198b8","3c5f605d.3450b8"]]},{"id":"542838fd.c2a42","type":"change","z":"4e139d26.c717a4","name":"chargeLevel","rules":[{"t":"set","p":"chargeLevel","pt":"msg","to":"#:(storeInFile)::dataStatus.tesla.chargeLevel","tot":"global"}],"action":"","property":"","from":"","to":"","reg":false,"x":490,"y":1420,"wires":[["a53a73bc.53a5f"]]},{"id":"b68345c3.7198b8","type":"switch","z":"4e139d26.c717a4","name":"chargeGoal?","property":"#:(storeInFile)::dataStatus.tesla.chargeGoal","propertyType":"global","rules":[{"t":"eq","v":"solar","vt":"str"},{"t":"eq","v":"cheap","vt":"str"},{"t":"eq","v":"fast","vt":"str"},{"t":"else"}],"checkall":"true","repair":false,"outputs":4,"x":500,"y":1580,"wires":[["2934f72a.be205"],["6945cd83.0db554"],["54fc0948.ffc2f8"],[]]},{"id":"2934f72a.be205","type":"function","z":"4e139d26.c717a4","name":"msg.chargeTime (solar)","func":"// calculate needed charging time 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*","location":"","offset":"0","solarType":"all","solarEvents":"sunrise,sunset"}],"x":90,"y":1120,"wires":[["c3bc5a73.b7e838"]]},{"id":"e6220b02a572c179","type":"inject","z":"4e139d26.c717a4","d":true,"name":"now","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payloadType":"date","x":90,"y":1020,"wires":[["44b73686.20b328"]]},{"id":"c1c7663590e07e5a","type":"debug","z":"4e139d26.c717a4","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","statusVal":"","statusType":"auto","x":710,"y":920,"wires":[]},{"id":"624210f6782e5609","type":"debug","z":"4e139d26.c717a4","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","statusVal":"","statusType":"auto","x":510,"y":920,"wires":[]},{"id":"cca88314.8bcf68","type":"tesla-config","email":"urs.eppenberger@maremonti.ch"},{"id":"a778a4f8.f945f8","type":"ui_group","name":"Charge State","tab":"cc41f24f.2ab028","order":4,"disp":true,"width":"4","collapse":false},{"id":"cc41f24f.2ab028","type":"ui_tab","name":"Tesla","icon":"dashboard","order":3,"disabled":false,"hidden":false}]
I had to put the flow into two parts, since the board limits me to 32k-characters per posting.
Hi Urs,
have you ever tried setChargingAmps with success?
I tried with now success because of the following error message:
result: false
reason: "missing charging_amps param"
Any ideas?
Thanks
Chris
Yes, for me it worked. In the Tesla API node you set the 'setChargingAmps' option and in the incoming message you need to set
msg.commandArgs.amps
to an Integer value. Here is an Inject node which sets the maximum charging power to 10 ampere. Just feed this into the Tesla API node with the settings as mentioned above and it should work.
[{"id":"6d1577b73768837c","type":"inject","z":"4e139d26.c717a4","name":"Charge Amps","props":[{"p":"commandArgs.amps","v":"10","vt":"num"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","x":130,"y":2220,"wires":[["5edb4b8f0e8f20e7"]]}]
Kind regards,
Urs.
Hi Urs,
many thanks for your quick answer.
Where can I find a List of all the parameter for all commands?
Within the Tesls API Docu I found nothing about "amps".
Thanks
Chris
I had to reverse engineer this. The various web sites for the unofficial Tesla API do not help.
I looked into the code here:
~/.node-red/node_modules/node-red-contrib-tesla/src
I have no clue about Javascript programming and I'm certainly not able to write my own node-red node. But if you go into the code and look for the huge 'case' statement, you see all the supported commands and on the next line all arguments with their names. Without understanding the code I just used what I found there and it worked.
The question is, how the heck did the author figure this out. But since it worked for me, I noted this down as a success and moved on.
Kind regards,
Urs.
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