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💬 Uniflächentaster PCB

openhardware.io last edited by openhardware.io

https://www.openhardware.io/view/419/Uniflachentaster-PCB
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Blauhorn last edited by
Hello Tilman, this is really a very nice design. I have ordered a pack of PCBs from elecrow, based on your gerber files, and have a few questions:
- in your BOM you have listed 5 smd-capacitors and 7 smd resistors, but on the PCB i have solderpads for 6 capacitors and 8 resistors. Can you just explain?
- is there a uniflächentaster-model for 2 ways?
- i think i have to flash the bootloader first, do you have a tutorial for this, and a sample-sketch for the board?
Thank you very much
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mysensors 191 temperature 58 battery 44 humidity 39 switch 28

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@Tmaster What I meant by my previous comment was to tap on the Node name to see what sensors were connected - Had you clicked on TANQUE you would have seen a box pop up below giving you all the children to that particular Node with what value was last updated and when, so you could easily have found out all about your mysterious 13 children. At least you have it sorted now, but it pays to do a bit of housekeeping in the sketch setup and Domoticz - eg which of the 6 "Unknown" Nodes is the one you want to next have a look at ? All my Node IDs are set at the Node, and the sketch name labels the Node ID also, the Nodes are named in Domoticz for easy identification. In the sketch my sensors are numbered sequentially and commented on what they are, so naming them in Domoticz becomes very much easier.
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@4994james great to hear you solved it, and thanks for reporting back!
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Hello Berk, Is it possible for you to share your schematic for this project please? especially the power part?
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I have published all the documentation in a Github repository. If someone wants to make PCBs, I recommend that you wait a little longer until you receive my PCBs and try them. https://github.com/giltesa/SmartHome
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@martinhjelmare Wow thank you so much. I've cleared the eeprom and now it gets node id 1. After removing the persistence file the sensor now shows on the web interface.
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Lovely work. Are you proposing to sell the boards? SMD looks too hard.
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@mjdula The 85 reading is actually an error message used by the ds18b20 to indicate it has not had time to complete the processing of the reading. Most commonly this is only seen when the node first boots up and can be ignored or fixed by adding a small delay. You will find a lot of information on this if you do a google search. I have never experienced it myself but from other posts on the net it seems power supply problems and long cable runs to the sensor can also cause the error. Some have also had success by using a different resistor value. Note you only need one resistor fitted near your nodemcu not a resistor at each ds18b20. If the 85 reading is well outside your expected reading you could just filter out any readings over 84 as well.
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