SOS Emergency Caller Prototype with NodeMCU and Crowtail-4G SIM A7670E

In this video, I'm taking a look at the Crowtail-4G SIM A7670E module that also features a GPS board and it can be accessed with a microcontroller through UART.
To test the board, I made a prototype device with NodeMCU and two push buttons to serve as an Emergency SOS Caller for elderly people or people who might need immediate assistance.
When in need, the user can press the first button on the device to initiate a direct call to the caregiver and start talking once the call is established, or if there is some other issue where they can't talk, they can press the second number and an emergency message will be sent to the caregiver.
The Crowtail-4G SIM A7670E module proved to be really easy to work with and besides providing call and SMS functionality to our projects, it also provides AT command for making HTTP requests, FTP requests as well as MQTT requests.
You can learn more about it here:
www.elecrow.co...
www.elecrow.co...
The code for the NodeMCU is available on my website:
www.tastetheco...
Tools and materials used in the video:
NodeMCU development Board - s.click.aliexp...
Mini Breadboards - s.click.aliexp...
Dupont jumper wires - s.click.aliexp...
Breadboard Jumper PCB - www.tindie.com...
Multimeter - s.click.aliexp...
RD6012 Bench Power Supply - s.click.aliexp...
Other interesting boards:
Crowtail ESP8266 - s.click.aliexp...
Crowtail 4G SIM A7670E - s.click.aliexp...
LED Matrix module - s.click.aliexp...
Crowtail Motor Base - s.click.aliexp...
Elecrow Lora RA-08H Node Board - s.click.aliexp...
Elecrow Starter Kit for Arduino - s.click.aliexp...
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My recording gear:
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GT10 Pro 5G Android Phone - s.click.aliexp...
Dragon Touch 4K Action Camera - s.click.aliexp...
USB Condenser Microphone - s.click.aliexp...
Tripod - s.click.aliexp...
Phone tripod mount - s.click.aliexp...
SOS Emergency Caller Prototype with NodeMCU and Crowtail-4G SIM A7670E
#emergencyCaller #Arduino4G #NodeMCU #SimCard #tastethecode
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[@T.H.-ti7zz]

Can I program the 4G module without Arduino? Can I use only the USB C interface?

[@TasteTheCode]

Yes you can. By default it works as a 4G modem on the computer and you can interact with it via serial.

[@T.H.-ti7zz]

@@TasteTheCode Thank you very much. I will try it with my own developed software with Qt. Greetings from Germany.

[@TasteTheCode]

@@T.H.-ti7zz 👍👍👍 Let me know how it goes!

[@PowerOn-]

Great content, I'll be using this as a basis for my emergency contact device. Thanks
Other ideas for expanded functionality
1) Ability to automatically 'pick up' the call from the caregiver to speak to the elderly person
2) Watchdog/automated text to let the caregiver know the system is still functional (maybe once a week)

[@TasteTheCode]

Thank you! Let me know how it goes! Also, great suggestions, I really like the watchdog suggestion, it is important for any system to know that it is still operational.

[@ElDiabloDelJuch]

Is the usb 5v enough to power the board during a call emission?

[@TasteTheCode]

Yes, it did not had any issues.

[@markedtky]

Does the simcom require subscription?

[@TasteTheCode]

Yes, you need a sim card that is active either by subscription or by prepaid.

[@TOMTOM-nh3nl]

Great Project, Thank You

[@TasteTheCode]

You are welcome! Thanks for watching!