Tiny IOT Solution based on Arduino& SIM808 GPS/GPRS
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Integrated the power managements and storage, this GPS tracker can be an solution for some IOT projects. absolutely open with eagle design files, can modify the files as you like for your own projects.
There is also another version with Arduino Zero.(ATSAMD21G18 )
Maduino Zero SIM808 GPS Tracker v3.4.brdMaduino Zero SIM808 GPS Tracker v3.4 PCB Layoutbrd - 484.55 kB - 08/30/2019 at 09:35 |
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Maduino Zero SIM808 GPS Tracker v3.4.schMaduino Zero SIM808 GPS Tracker v3.4 CAD filesch - 438.86 kB - 08/30/2019 at 09:34 |
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SIM808 GPS Tracker v1.5.brdSIM808 GPS tracker eagle files.brd - 413.25 kB - 12/27/2017 at 04:11 |
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SIM808 GPS Tracker v1.5.schSIM808 GPS tracker eagle files.sch - 280.44 kB - 12/27/2017 at 04:11 |
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Updates in the version 3:
1. Power circuit update: previously a 3.7v battery is needed as the A9G power supply.
in the new version 3, the module can be powered either by battery , or directly by USB.
2. Battery voltage Monitor, to check the battery voltage
3. USB voltage monitor, to check if there a USB power connected;
4. 3.3V DC-DC module updated to 1A Version
5. SIM808 DTR connected to MCU, to make SIM808 enter sleep mode
Glad to know it works OK now. Thanks for your updates about the usage
Anyone use this device, I am having issues with it that I cannot figure out. I cannot detect the serial port.
https://stackoverflow.com/questions/50360616/why-is-makerfab-sim808-atmega328-serial-port-not-showing-up-on-arduino-ide-on-my
Makerfabs
Electroniclovers123
tinkeringtech
Tobias
I bought a Maduino Zero v2.0 about a year ago and, overcoming many difficulties (mainly due to lack of documentation and support), finally I managed to build a complete GPS Tracker/Logger with many custom features.
I think that the Maduino Zero, altough a good idea, should be thorougly revised to improve first of all the reset circuitry; I say this because, when I reset the board using the pushbutton, in about all cases it doesn't restart correctly; indeed it shows a random behaviour and in the majority of cases I am forced to repeat the reset many times until it restarts correctly. Also the software reset at the end of programming doesn't work correctly.
Other problems I see also in the current revision of this board (3.4) looking at its schematic diagram and layout are:
- the poor quality of the uSD-Card socket that in my case was broken just after few days of normal use. I think that the "hinge" type of socket is not adequate and a push-pull type should be better;
- the main SPI signals (MISO, MOSI, CLK) are "reserved" for the uSD-Card and not available on the I/O connectors; this is a serious problem in case one wants to connect other SPI peripherals to the board (like a display in my case).
- the bluetooth and the audio IN/OUT functionalities of the SIM808 are not available at all; they should be as in the majority of SIM808-based arduino shields