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Nächste Überarbeitung 		Vorhergehende Überarbeitung
wifi_sensor [2015/04/08 00:32]
karl [WolkenThermometer (WiFi-Sensor)] 		wifi_sensor [2017/04/04 06:43] (aktuell)
karl [Research Links]
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 For now (2015-03-01) this page is a mixture of concept, documentation and product preview. Please stay tuned for the final product and software!  For now (2015-03-01) this page is a mixture of concept, documentation and product preview. Please stay tuned for the final product and software! 
  
-Pleas visit the News-site for chronological updates: [[WolkenThermometer-News]]+Pleas visit the News-site for chronological updates: [[WolkenThermometer-News]] \\
 In addition you can sign up to the news letter: In addition you can sign up to the news letter:
  
-<html>+<HTML>
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     <div id="mc_embed_signup_scroll">     <div id="mc_embed_signup_scroll">
- <h2>Subscribe to our mailing list</h2> + <h2>Subscribe to the Newsletter</h2>
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  </div>    <!-- real people should not fill this in and expect good things - do not remove this or risk form bot signups-->  </div>    <!-- real people should not fill this in and expect good things - do not remove this or risk form bot signups-->
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-The PCBs for the first batch of 50 pieces including an SMD stencil was kindly sponsored by WEdirekt - the board house of Wuerth Elektronik. Please have a look at www.wedirekt.de +The PCBs for the first batch of 50 pieces including an SMD stencil was kindly sponsored by WEdirekt, the online shop for PCBs and stencils from Würth Elektronik. Please have a look at www.wedirekt.de 
-[[http://www.wedirekt.de|{{ :wifi-sensor:wedirekt.png}}]]+[[http://www.wedirekt.de|{{ :wifi-sensor:we.png?200}}]]
 ===== Hardware ===== ===== Hardware =====
   * ATmega328 with 8MHz resonator (based on the Arduino Nano328)   * ATmega328 with 8MHz resonator (based on the Arduino Nano328)
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 ===== Hardware Details ===== ===== Hardware Details =====
-Here you can download the current version of the schematic:\\ +Here you can download the current version of the schematic, PCB files and the bill of materials:\\ 
-http://www.zeilhofer.co.at/documents/wifi-sensor/wifi-sensor-20150301.pdf+https://github.com/KarlZeilhofer/WolkenThermometer-kicad
 ==== Measuring Battery Voltage ==== ==== Measuring Battery Voltage ====
 We use the internal ADC and an external shunt reference (LM431SCCM32X, RS#806-4043 for 6.5€ct/pc). \\ We use the internal ADC and an external shunt reference (LM431SCCM32X, RS#806-4043 for 6.5€ct/pc). \\
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 The user allways can monitor the battery condition with the app for the smart phone.  The user allways can monitor the battery condition with the app for the smart phone. 
 ==== Battery Pack ==== ==== Battery Pack ====
-The battery is assembled out of 3 pieces of AAA NiMH cells. In total we have nominal 3.6V and 800mAh. +<del> 
 +The battery is assembled out of 3 pieces of AAA NiMH cells. In total we have nominal 3.6V and 800mAh.</del>  
 +Instead of the NiMH battery, a lithium battery will be used, since the NiMH type is not able to deliver enough current at cold temperatures.  
 If the solar panel delivers enough power, we can increase the data transmission frequency. If the thermometer is in a rather dark area, we reduce the frequency to save power.  If the solar panel delivers enough power, we can increase the data transmission frequency. If the thermometer is in a rather dark area, we reduce the frequency to save power. 
  
-Exact measurements on power consumption of the WiFi module and also the whole circuit it self have to be done, to calculate the optimum function for transmission rate. +Exact measurements on power consumption of the WiFi module and also the whole circuit it self have to be done, to calculate the optimum function for transmission rate.
  
  
 ===== Firmware Details ===== ===== Firmware Details =====
 +Here you can find the source code on Github: \\
 +https://github.com/KarlZeilhofer/WolkenThermometer-firmware
 ==== Structure ==== ==== Structure ====
  
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     * aes256: http://aes.online-domain-tools.com/     * aes256: http://aes.online-domain-tools.com/
   * AVR Fuse Calculator http://www.engbedded.com/fusecalc/   * AVR Fuse Calculator http://www.engbedded.com/fusecalc/
 +
 +{{tag>wifi sensor solar battery project arduino kicad product electronics english technical}}
 +
wifi_sensor.1428445956.txt.gz · Zuletzt geändert: 2015/04/08 00:32 von karl

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