My Project

@alexsh1 the reason i am using the 18650's is the fact i have a steady stream of them coming in for my large battery packs. I have a couple hundred that aren't dead but just aren't quite up to to the standard i am putting in my big packs.

I don't think this is the right forum to ask this question. Try a Node Red forum?

Welcome to the MySensors community @dj_janker Yes, what you are describing should be fairly straightforward. You could use the receive() function on the gateway to write to the SD card. I would however use 3.3V Pro Mini instead of Nano for the battery powered nodes. See https://www.mysensors.org/build/battery for more information. For the DS18B20 see https://www.mysensors.org/build/temp

Impressive @Kokosnoot!

I may misunderstand how they work, but I've had the idea that (super)caps are better in short term high current situations. Like regenerative brakes for robot lawnmowers, not slow drain low power devices. It sounds to me like the life boat is the lifepo4 batteries. I'm all for experiments, so please dont stop, but unless the environmental conditions are intolerable for the batteries, I'd say you found your answer.

what I meant is that they don't actually go to 0v even if you short them as you will always be able to measure some small voltage. I am no expert but my bet is that that 0.5/0.6v is kind of their bottom line where they don't hold any more useful energy below that. For balancing there are SAB Mosfets that help to keep all the supercaps on the same voltage, but the reverse charge issue is the same for all series circuits, also LiPo worn out batteries can get to 0V and then getting reverse charged with all the consequent risk of fire.

@thucar thanks :) ill check it out :)

Hello Stefaan, Thanks for sharing your nice project ! How is it with the automatic door and your MySensors controller after 2 years ? Do you improved the code in the meanwhile and do you want to share it again ? I made also an automatic (horizontal sliding) door on my coop with a barebone Arduino and a LDR as sensor, but I want the same functionalities like yours, so I ordered today all the extra necessary parts. [image: 1537217225064-img_20170624_204139-resized.jpg] [image: 1537217174739-img_20170626_080402-resized.jpg] Kind regards and thanks in advance, Peter.

@zrom69 sorry for the delay! This is because I was using the development version of NodeManager available at https://github.com/mysensors/NodeManager/tree/development where SensorMQ implementation has been completely reviewed. Sorry for not making it clear!

@sm_ali You can have a look at this lib here https://raw.githubusercontent.com/DFRobot/DFRobot_BME680/master/bme680.c there is code that handles the calib thing

@itbeyond Hi David, thanks for the code. I have an issue with the transformer as it get very hot, and am trying to use the same arduino to control another relay to turn on the tranformer before irrigation and turn the relay off after finishing the irrigation. Please, will appreciate your help pointing out what changes to the code are needed. I was trying to use an analogic pin as digital but am having unexpected results... pinout(A0, OUTPUT); digitalWrite(A0, HIGH); Thanks for any help.

@annujbhatia , did you manage to connect it right? I have the same challenge as I have 9 zones. https://www.arduino.cc/en/Tutorial/ShiftOut should be the guidance I suppose

I want to use this mysensors touch sensor to adjust a selector switch in domoticz, so if I select scene 1 the selector switch in Domoticz goes to 10%, and scene 2 to 20% and so on. Is that possible and how do I do that?

@dbemowsk Any progress I want to do this as well?

@litunbls This forum is Arduino only really... Search the web or convert an Arduino library so it can be compiled in Keil.

/** DESCRIPTION Sensor: CJMCU-GUVA-S12SD/CJMCU-S12D Sensor Arduino SIG -> A0 GND -> GND VCC -> 5V or 3.3v part created by Henrik Ekblad henrik.ekblad@mysensors.org Copyright (C) 2013-2015 Sensnology AB Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors part Original link : CSDN 博客链接. part by Tonbor august 2018 */ // Enable debug prints to serial monitor #define MY_DEBUG // Enable and select radio type attached #define MY_RADIO_NRF24 //#define MY_RADIO_NRF5_ESB //#define MY_RADIO_RFM69 //#define MY_RADIO_RFM95 #include <MySensors.h> #define UV_SENSOR_ANALOG_PIN 0 #define CHILD_ID_UV 0 uint32_t SLEEP_TIME = 30*1000; // Sleep time between reads (in milliseconds) MyMessage uvMsg(CHILD_ID_UV, V_UV); int lastSend =0; int sensorValue; long sum = 0; int vout = 0; int uv = 0; int lastUV = -1; void presentation() { // Send the sketch version information to the gateway and Controller sendSketchInfo("UV Sensor", "1.3"); // Register all sensors to gateway (they will be created as child devices) present(CHILD_ID_UV, S_UV); } void setup() { Serial.begin(115000); } void loop() { uint32_t currentTime = millis(); sensorValue = 0; sum = 0; for (int i = 0 ; i < 1024 ; i++ ) { sensorValue = analogRead(UV_SENSOR_ANALOG_PIN); sum = sensorValue + sum; delay(2); } vout = sum >> 10; vout = vout * 4980.0 / 1024; Serial.print("The Photocurrent value:"); Serial.print(vout); Serial.println("mV"); if (vout < 50) { uv = 0; } else if (vout < 227) { uv = 1; } else if (vout < 318) { uv = 2; } else if (vout < 408) { uv = 3; } else if (vout < 503) { uv = 4; } else if (vout < 606) { uv = 5; } else if (vout < 696) { uv = 6; } else if (vout < 795) { uv = 7; } else if (vout < 881) { uv = 8; } else if (vout < 976) { uv = 9; } else if (vout < 1079) { uv = 10; } else { uv = 11; } //Send value to gateway if changed, or at least every 5 minutes if ((uv != lastUV)||(currentTime-lastSend >= 5UL*60UL*1000UL)) { lastSend=currentTime; send(uvMsg.set(uv)); lastUV = uv; } sleep(SLEEP_TIME); }

@mfalkvidd Gland plugs are almost bulletproof, perfect for the selected diameter. The beauty of the free grommets usually accompanying cases is that they may be cut to size, whether that is an antenna or a cable conduit...