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@ -31,89 +31,17 @@ Vamos a usar una placa arduino para registrar unos valores del ambiente. Con est
Para empezar a registrar vamos a necesitar un nuevo elemento, el módulo SD. Con este módulo empezaremos a ganar independencia, ya que podremos guardar la información generada por el sensor en una memoria extraíble. Así podremos retirar la información de la placa para leerla en otro dispositivo.
### Materiales, a muchos ya los tenemos :sunglasses:
* Los mismos de antes
* [Módulo micro SD](https://articulo.mercadolibre.com.ar/MLA-905429694-modulo-lector-memorias-micro-sd-arduino-5v-hobbytronica-_JM#position=3&search_layout=grid&type=item&tracking_id=78f54e44-642d-4fc8-b9fd-e26b2e29e181)
* [Memoria micro SD](https://articulo.mercadolibre.com.ar/MLA-927190694-memoria-micro-sd-2gb-nuevas-sin-blister-originales-100-_JM#position=4&search_layout=stack&type=item&tracking_id=d6d6c54d-7f15-4b18-b0df-8bed206f4609)
### Second step, logging
To begin logging we are going to made an Arduino Uno based data logger. This data logger is based in one of the [Cave Pearl Projects] (https://thecavepearlproject.org/2015/12/22/arduino-uno-based-data-logger-with-no-soldering/). After complete the datalogger we are going to add a DHT11 temperature and relative humidity module to pin 8 of Arduino Uno. The code.ino is downloadable in the following [link](https://drive.google.com/open?id=17P1dIhY--dl7_n6sXm4gY56F4k5InGaj)or in the Codes folder.
<img src="Images/HumTeDL.jpg" width="100%">
### Specifications & Technical Attributes
The specific attributes of the data logger you build will depend slightly on the type of sensors you buy for the system. The numbers shown below are for the full version of the data logger that contains exactly the parts that we suggest in our build documents and parts list. Below, you can see which parts could be changed for which spec upgrades.
| Attribute | Value [SI] |
| ---------- | :-------------: |
| Weight | 1 [kg] |
| Footprint | 30x5 [cm] |
| Battery Capacity | 6800 [mAh] |
| Operating time |3[months](continual use)|
| Approximate Max wireless communication | 3 [km] |
| Communication (in this guide) | Arduino IDE (windows, mac, GNU/linux) |
| Cost | ~ U$S350 |
##### Table of compenents
||Quantity|Value U$S|Link|
|----------------|:-----------------:|------------------|--------------------|
|arduino pro mini|1|3.881656805|[->](https://articulo.mercadolibre.com.ar/MLA-643647762-arduino-pro-mini-33v-8mhz-robotica-atmel-atmega328-mona-_JM)|
|Arduino mega|1|9.349112426|[](https://articulo.mercadolibre.com.ar/MLA-621290099-arduino-uno-r3-atmega16u-atmega328-atmel-robotica-todomicr-_JM?quantity=1#position=9&type=item&tracking_id=982584cd-6e84-467d-a826-ffea1fc20edd)|
|temperature sensor ds18b20|1|4.130177515|[](https://articulo.mercadolibre.com.ar/MLA-818621568-sensor-digital-temperatura-ds18b20-cable-sumergible-3-metros-_JM)|
|sensor de turbidez|1|15.66863905|[](https://articulo.mercadolibre.com.ar/MLA-668633063-modulo-sensor-de-turbidez-analogico-liquid-particles-_JM)|
|pH sensor|1|29.5|[](https://www.dfrobot.com/product-1025.html)|
|conductivity sensor|1|79.9|[](https://www.dfrobot.com/product-1797.html?search=conductivity&description=true)|
|disolved oxygen sensor|1|169|[](https://www.dfrobot.com/product-1628.html)|
|real time clock|1|2.970414201|[](https://articulo.mercadolibre.com.ar/MLA-617370292-reloj-tiempo-real-rtc-ds3231-eeprom-24c32-arduino-mona-_JM)|
|18650 battery charger |1|2.911242604|[](https://articulo.mercadolibre.com.ar/MLA-678695062-cargador-universal-para-pilas-18650-14500-26650-ultrafire-_JM?variation=19019023778&quantity=1#reco_item_pos=1&reco_backend=machinalis-seller-items-pdp&reco_backend_type=low_level&reco_client=vip-seller_items-above&reco_id=7352aa27-a3d6-4223-9ae9-d8e44830d339)|
|battery holder|1|1.124260355|[](https://articulo.mercadolibre.com.ar/MLA-812596321-portapila-2-pilas-bateria-porta-pilas-doble-18650-salida-cab-_JM?quantity=1#position=1&type=item&tracking_id=08eb7c3b-f94b-4834-a1d7-e88dc6b7ab6a)|
|rechargable 18650 batteries|2|3.360946746|[](https://articulo.mercadolibre.com.ar/MLA-717530188-pila-bateria-18650-recargable-37v-6800mah-li-ion-linternas-_JM?quantity=1#position=1&type=item&tracking_id=cbb2490b-d433-4775-9784-98cee71379df)|
|LoRa module|2|15|[](https://www.ebay.com/itm/REYAX-RYLR896-Lora-module-SX1276-UART-Interface-868MHz-915MHz-Antenna-AT-command/181562403752?hash=item2a45f66ba8:g:h0QAAOSw9~5ZVKTx)|
|Hermetic case|2|8,272189349|[](https://articulo.mercadolibre.com.ar/MLA-823608945-frascos-vidrio-lunchera-hermetico-envase-recipiente-1000ml-_JM?quantity=1&variation=45946622024)|
|Electronic stuff(jumper wires, terminal boards, soldering tin, etc.)|| 10||
### Features
This data logger is designed to function similarly to the [Cave Pearl Proyect data logger](https://thecavepearlproject.org/category/diy-build-a-pro-mini-logger/) designs:
* __Autonomous:__ this data logger has an autonomy of several months
* __Customisable:__ Allows to choose what sensor you want for your data logger
* __Wireless communication:__ Thanks to the LoRa connectivity this device can send a measurements to a server and get access to the information wherever you are. This feature is new to the Cave Pearl Proyect data logger.
We chose a Arduino pro-mini to be the "brain" of this data logger for its versatility, accessibility, simplicity, and ability to add and upgrade your own modifications. Any method with which you can communicate with a arduino pro-mini (bluetooth, WiFi, LoRa, etc) can be added to the data logger to get the information from its.
<img src="Images/ArduinoLoRa.png" width="100%">
[List of components](https://drive.google.com/open?id=1hyrhMyJMDih4w9r664UP0bz__xZFTRils_V-fsFg26g)
### Do you want to contribute to the project?
This project need people interested in contribute in different tasks. In order to collaborate with this project, you will need to have some experience in the following:
* __Coding arduino microcontrollers:__ Although we are already working in the code for the full data logger, improvements of the code are always necessary the best code possible for the device.
* __Electronics:__ This project uses components like sensors, different modules, and batteries.
* __Community management:__ We need some expertise in the use of social networks and content production.
Most of the above are skills that you can learn and pick up fairly quickly from watching videos and doing research on the internet, and throughout the project we try to give supplemental information on some of these as well. See the build documents for more information.
If you want to contribute please send me an email to: alejobonifacio@gmail.com
## Happy building!!
If you have any questions or run into problems during your build, please search for answers and/or reach out on the [forum](https://create.arduino.cc/projecthub/alejobonifacio/ecosen-lora-data-loggers-for-environmental-quality-9dffba).
### Model of README
This README document is based in the NASA Open Source Rover [project](https://github.com/nasa-jpl/open-source-rover)
## Procedimiento
Armamos el circuito según la imagen que se ve en el siguiente [link]() para el módulo micro SD. En la imagen no muestra un cable entrando directamente en cada uno de los orificios de la placa arduino, sino que indica que cada pin del módulo va a el nombre de orificios particulares del arduino. Esto es común en diagramas de conexión y está bueno que nos acostumbremos a esto. Luego en la misma página que estamos viendo vamos a ver una última sección antes de los comentarios que se llama **ESCRITURA DE UN FICHERO (DATALOGGER)**. Copiamos el código y lo pegamos en un nuevo archivo de Arduino.IDE y lo ejecutamos.
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