View source for Maduino Zero SIM800C


== Introduction ==
Maduino Zero SIM800C is a one-stop solution for IOT (Internet of Things) projects, it integrate a micro Controller SAMD21G18A-AU, GRRS/GSM module SIM800C, on-board power management and storage, to make the Maduino Zero SIM800C ready for real project for IOT projects such as smart-home, outdoor monitoring, shared bicycle, etc. The GRPS/GSM module A6 support quad-band 850/900/1800/1900MHz, that covers any GSM network, after inserting a SIM card, then you will able to use the SMS/GPRS service of Cellular connectivity.<br>
The Maduino Zero SIM800C based on the Arduino, users can program it with Arduino IDE, which is very easy especially suit for the none-programmers. There are also detailed guide for users to learn how to create the first IOT project with Maduino Zero SIM800C board, with which the starters can learn the hardware and programming skill quickly.

'''Model: [https://makerfabs.com/maduino-zero-gprs-gsm-sim800c.html OAC800SIM]'''<br>
[[File:Maduino Zero SIM800C.jpg|500px]]

== Features ==
*Powered by lithium battery 3.4-4.2V or USB(5V)
*SAMD21G18A: 32-bit ARM® Cortex®-M0 up to 48MHz, 256KB flash, 32KB SRAM, LQFP48
*Integrated Power Control System
*Quad-band: 850/900/1800/1900Mz
*Interface: I2C/SPI/UART/ADC/DAC/I2S/38*GPIO
*Arduino Compatible
*Working Temperature: -20 ~ +85℃
*Default baud rate: 115200bps
*Size: 40*55mm

== Interface Function ==
[[File:Maduino Zero SIM800C_1.JPG|700px]]<br>
①PWR: Power Indicator<br>
②CHG: Charge Status Indicator<br>
③VBAT: Lipo Battery Connector<br>
④CHG: 5V power Input Connector, connect to the solar panel to charge the battery.<br>
⑤Micro USB: 5V Power Input, USB to serial Communication<br>
⑥RESET: Reset Button for SAMD21G18A-AU<br>
⑦Serial Port Select: <br> 	
D0&D1: Hardware serial port; <br>
⑧A6 Serial Port for Firmware Updates<br>
⑨GSM: Antenna IPX Connector<br>

[[File:Maduino Zero SIM800C_2.JPG|700px]]<br>

①Micro SIM Card Holder<br>
②Micro SD Card Holder<br>

Pins usage on Arduino
*D0 – RX from SIM800C (Hardware Serial Communication Selected)
*D1 – TX to SIM800C (Hardware Serial Communication Selected)
*D2 - Unused
*D3 - Unused
*D4 - SD Card CS PIN(active Low)
*D5 - connect to SIM800C UART1_DTR
*D6 - Unused 
*D7 - Unused 
*D8 - Unused 
*D9 - Power ON Control of SIM800C (active High)
*D10 - Unused
*D11 - Unused
*D12 - Unused
*D13 - Unused
*D14(A0) - Unused
*D15(A1) - Unused
*D16(A2) - Unused
*D17(A3) - Unused
*D18(A4) - Unused
*D19(A5) – Unused

==Usage==

===GPRS/GSM test===
SIM800C is a GPRS/GSM Quad-band module,and the update version support Bluetooth 3.0 EDR(some functions of SPP, OPP, HFP/HSP ), so The Maduino Zero SIM800C can be capable of the GPRS connectivity for Internet, to upload/download data with internet.with this board, we can use it as a data acquisition, remote control and a lot of IOT project or smart home project. The following simple example shows the starters how to access a website on the internet (Users need check the AT commands for how to access an website):

1.Insert a Micro SIM card<br>
The Maduino Zero SIM800C board uses the micro SIM card that is widely used in Android phone, install the Micro SIM card to the holder as below picture.<br>
[[File:Maduino_Zero SIM800C_03.png|700px]]<br>
Note that some fee maybe needed for each SMS depends on your local GSM Operator, make sure that the SIM Card is active and enough money left for this application.<br>
2.Connect the GSM Antenna and the 3.7V battery<br>
[[File:Maduino Zero SIM800C_04.PNG|700px]]<br>
3.Programming and Download<br>
The Codes for this application is very simple, define the SIM800C Power control pins:
<pre>
//define the power control pin of SIM808:
int POWER_KEY=9; //D9: power on/off
</pre>
Connect to GPRS/GSM network
<pre>
sendData("AT+CGATT=1", 1000, DEBUG);
</pre>
Initialize HTTP Service
<pre>
sendData("AT+HTTPINIT", 1000, DEBUG);
</pre>
Set HTTP parameters value
<pre>
sendData("AT+HTTPPARA=\"URL\",\"http://api.thingspeak.com/update?api_key=OTI5YUPI0PALJR3F&field1=25.6&field2=78.5\"", 1000, DEBUG);
</pre>
POST the data that set in command "AT+HTTPPARA"
<pre>
sendData("AT+HTTPACTION=1", 1000, DEBUG);//HTTP POST success if get responce: +HTTPACTION: 1,200,0
</pre>

Select the right port and Arduino board: Arduino Zero(Native USB Port) to upload the firmware to Maduino Zero SIM808 GPS board<br>
[[File:Maduino Zero SIM800C_01D.PNG|500px]]<br>
4.Test Result<br>
If the GPRS service accessible, the Maduino board post data to the site, open the Serial Tool we can see the logs as shown below:<br>
[[File:Maduino_Zero_SIM800C_07A.png|700px]]<br>


Of course you can open the link: https://thingspeak.com/channels/825092 it will show the data:<br>
[[File:Maduino_Zero_SIM800C_05.png|700px]]<br>



Note: AT Command:
<pre>
AT+SAPBR=3,1,"CONTYPE","GPRS"  //
AT+SAPBR=3,1,"APN","CMNET"
AT+SAPBR=1,1
AT+HTTPINIT
AT+HTTPPARA="URL","http://api.thingspeak.com/update?api_key=OTI5YUPI0PALJR3F&field1=22.6&field2=73.8"
AT+HTTPACTION=1
AT+HTTPREAD
AT+HTTPTERM //Terminal the HTTP
</pre>
More details you can refer to the document ''SIM800 Series_AT Command Manual.pdf''.

===Bluetooth test(update later)===
on progressing...

== FAQ  ==
You can list you question here or contact with '''support@makerfabs.com''' for technology support.

== Resources ==
*[http://makerfabs.com/wiki/index.php?title=File:Maduino_Zero_SIM800C_SCH.pdf Maduino_Zero_SIM800C_SCH]
*[http://makerfabs.com/wiki/index.php?title=File:Maduino_Zero_SIM800C_AT_Commands_V1.0.zip Maduino Zero SIM800C AT Commands Demo]
*[http://makerfabs.com/wiki/index.php?title=File:Maduino_Zero_SIM800C_HTTP_POST_V1.0.zip Maduino Zero SIM800C HTTP POST Demo]
*[http://makerfabs.com/wiki/index.php?title=File:SIM800_Series_AT_Command_Manual_V1.09.pdf SIM800_Series_AT_Command_Manual]
*[http://makerfabs.com/wiki/index.php?title=File:SIM800C_Hardware_Design_V1.02.pdf SIM800C_Hardware_Design_V1.02]