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devDuino Sensor Node V2.2 (ATmega 328)

openhardware.io last edited by openhardware.io

https://www.openhardware.io/view/85/devDuino-Sensor-Node-V22-ATmega-328
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gregl Hero Member last edited by

ive used these with mysensors for several years now... they work great. Batteries last ages!
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urbangreen last edited by

New to electronics and progamming.... hence excuse rather dumb nature of my query .. recently purchase the Devduino V2.2 OTA version and am trying to figure out if the device comes pre loaded with the arduino bootloader. ??
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Yet another MQTT gateway for MySensors :)
Development • mysensors mqtt • • scurb

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@scurb This looks very interesting and my factor now to save me from having to create my own :-). I have been planning to do the same thing (although maybe on a smaller software scale) by writing a simple Python server that would pull serial packets off of a gateway arduino (either running mysensors or something I write myself) and pipe this through MQTT to openHAB. I have two questions: How do you interface with a sensor network? Do you go through a serial connection to read the serial packet format (a,b,c,d)? I see several implementations that put the mqtt client directly on the Arduino, but it seems much cheaper for me to just plug it into a USB port to get a virtual serial port instead of investing in a separate ethernet shield How does an item configurations look like for a switch in openHAB? I'm looking to build a toggle switch which toggles light on or off every time it is activated, and I cannot really understand how to configure the switch to allow this behaviour for an mqtt input. Feel free to take the second question with me directly since this might not be very interesting to the others in the forum
Why is the output of ACS712 current measurement module unchanged?
General Discussion • mysensors • • Tessie T

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@ZenBlizzard in case you are measuring the output with a multimeter, you will get an averaged level, since AC current waveform should be sinusoidal and overlapped with the Vcc/2->2.56V in your case. To measure the current you need a decently high sampling and some math. #define SENSITIVITY 66 // mV/A const float readings = 5; const float alpha = 2.0 / (2 * readings + 1); for (ifor = 0; ifor < 250; ifor++) { // Voltage voltageSampleRead = analogRead(V) * vccRead / 1023 - vccRead / 2; /* read the sample value including offset value*/ voltageSampleSum = voltageSampleSum + sq(voltageSampleRead); /* accumulate total analog values for each sample readings*/ voltageSampleOffsetSum = voltageSampleOffsetSum + voltageSampleRead; // Current currentSampleRead = analogRead(I) * vccRead / 1023 - vccRead / 2; /* read the sample value including offset value*/ currentSampleSum = currentSampleSum + currentSampleRead * currentSampleRead; /* accumulate total analog values for each sample readings*/ currentSampleOffsetSum = currentSampleOffsetSum + currentSampleRead; wait(1); } voltageMean = voltageSampleSum / ifor; /* calculate average value of all sample readings taken*/ voltageOffset = voltageSampleOffsetSum / ifor; reading = (sqrt(voltageMean) - voltageOffset) * 230.0 / 1.0; // read voltage / reported voltage. voltage = round_to_dp(alpha * reading + (1 - alpha) * voltage,1); Serial.println(voltage); if (voltage < 25) voltage = 0; currentMean = currentSampleSum / ifor; /* calculate average value of all sample readings taken*/ currentOffset = currentSampleOffsetSum / ifor; reading = (sqrt(currentMean) - currentOffset) / SENSITIVITY * 1000 - currentZeroOffset; // subtract no load current. if (reading < 0) reading = 0; current = round_to_dp( alpha * reading + (1 - alpha) * current,2);
SCT-013-000 Calibration Value
General Discussion • mysensors • • Junior Ximenes

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💬 MySensors NRF5 Platform
OpenHardware.io • mysensors contest2017 nrf52 nrf5 nrf51 • • openhardware.io

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I think you can just set the I2C pins in MyBoardNRF5.h without remapping the pins in MyBoardNRF5.cpp. Look in MyBoardNRF5.h, under the Wire Interfaces section. Set SDL and SCA to 30 and 31 as appropriate for your board.
💬 MySensors D1 mini
OpenHardware.io • mysensors contest2017 wemos sensebender micro contest2017 mysensors • • openhardware.io

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Lovely work. Are you proposing to sell the boards? SMD looks too hard.
💬 NModule
OpenHardware.io • mysensors temperature relay humidity light pir nmodule door accelerometer touch milight • • openhardware.io

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@zmatokan said in NModule: @Nca78 Are you still working on this pcbs? i think it would be great to add a version that supports HiLink 220ac->5dc module on powerboard. No I'm not working on NModules anymore, I have a few old nodes using atmega/nrf24 but I switched to NRF5 for "basic" nodes now, and to ESP32 for more "advanced" stuff. NModule was designed for beginner and simple/riskless use, so I don't think adding high voltage option is a great idea, it's better to use an external power supply and connect the output to the powerboard.
💬 MDMSGate
OpenHardware.io • mysensors gateway nrf24l01 rfm69 esp8266 atsha204a ethernet atmega328 usb mysensors gateway • • openhardware.io

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Hi @berkseo. Thanks for the suggestion, but could you describe in more detail? As for my TODO list, there is already a task to add 485 interface to the gateway. My latest device "xRoom" have this interface. ps/ Where have you gone? I have been working on "xRoom" shield. A small announce: Do you remember the discussion about multinode? So, it will be available soon))
💬 MySensors Watermeter
OpenHardware.io • mysensors arduino mysensor water watermeter • • openhardware.io

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devDuino Sensor Node V2.2 (ATmega 328)

Suggested Topics

Yet another MQTT gateway for MySensors :)
Development • mysensors mqtt • • scurb

Why is the output of ACS712 current measurement module unchanged?
General Discussion • mysensors • • Tessie T

SCT-013-000 Calibration Value
General Discussion • mysensors • • Junior Ximenes

💬 MySensors NRF5 Platform
OpenHardware.io • mysensors contest2017 nrf52 nrf5 nrf51 • • openhardware.io

💬 MySensors D1 mini
OpenHardware.io • mysensors contest2017 wemos sensebender micro contest2017 mysensors • • openhardware.io

💬 NModule
OpenHardware.io • mysensors temperature relay humidity light pir nmodule door accelerometer touch milight • • openhardware.io

💬 MDMSGate
OpenHardware.io • mysensors gateway nrf24l01 rfm69 esp8266 atsha204a ethernet atmega328 usb mysensors gateway • • openhardware.io

💬 MySensors Watermeter
OpenHardware.io • mysensors arduino mysensor water watermeter • • openhardware.io

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devDuino Sensor Node V2.2 (ATmega 328)

Suggested Topics

Yet another MQTT gateway for MySensors :) Development • mysensors mqtt • • scurb

Why is the output of ACS712 current measurement module unchanged? General Discussion • mysensors • • Tessie T

SCT-013-000 Calibration Value General Discussion • mysensors • • Junior Ximenes

💬 MySensors NRF5 Platform OpenHardware.io • mysensors contest2017 nrf52 nrf5 nrf51 • • openhardware.io

💬 MySensors D1 mini OpenHardware.io • mysensors contest2017 wemos sensebender micro contest2017 mysensors • • openhardware.io

💬 NModule OpenHardware.io • mysensors temperature relay humidity light pir nmodule door accelerometer touch milight • • openhardware.io

💬 MDMSGate OpenHardware.io • mysensors gateway nrf24l01 rfm69 esp8266 atsha204a ethernet atmega328 usb mysensors gateway • • openhardware.io

💬 MySensors Watermeter OpenHardware.io • mysensors arduino mysensor water watermeter • • openhardware.io

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Yet another MQTT gateway for MySensors :)
Development • mysensors mqtt • • scurb

Why is the output of ACS712 current measurement module unchanged?
General Discussion • mysensors • • Tessie T

SCT-013-000 Calibration Value
General Discussion • mysensors • • Junior Ximenes

💬 MySensors NRF5 Platform
OpenHardware.io • mysensors contest2017 nrf52 nrf5 nrf51 • • openhardware.io

💬 MySensors D1 mini
OpenHardware.io • mysensors contest2017 wemos sensebender micro contest2017 mysensors • • openhardware.io

💬 NModule
OpenHardware.io • mysensors temperature relay humidity light pir nmodule door accelerometer touch milight • • openhardware.io

💬 MDMSGate
OpenHardware.io • mysensors gateway nrf24l01 rfm69 esp8266 atsha204a ethernet atmega328 usb mysensors gateway • • openhardware.io

💬 MySensors Watermeter
OpenHardware.io • mysensors arduino mysensor water watermeter • • openhardware.io

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